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Merge PR #915

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# Conflicts:
#	crates/engine/src/media.rs
#	crates/raw/src/vendor/crx.rs
#	crates/ui-egui/locales/de.json
#	docs/gaps.md
#	docs/parity-checklist.md
#	docs/raw-parity.md
#	docs/whats-new.md
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docs/cr3.md
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@@ -24,7 +24,7 @@ are the public prose descriptions and patents cited in
embedded-JPEG fallback and its visible warning when a JPEG is present. So does
any other CR3 decode error (a corrupt file, or a body whose CRX stream the
decoder misreads): every CR3 opened from its embedded JPEG before this decoder,
and only three bodies are verified, so a CR3 never fails to import or load
and only four bodies are verified, so a CR3 never fails to import or load
where a preview exists. HEVC-only preview tracks are recognized but are not
decoded.
@@ -55,6 +55,16 @@ control. The exact inputs and reference hashes are:
| Canon R8 RAW, raw.pixls.us 6585 | `7d5c6dbb11ff7e6ee58715d90a20f5d801e8b103f4711ff6ea329ceafcef254c` | `63c1c6d8d1eb2312` |
| Canon R8 C-RAW, raw.pixls.us 6587 | `df33cf394573645ce03dea1b2e9f0b5cc2b7734e9e3391ee7114151414cf2812` | `f836a663a795a375` |
The EOS R5 Mark II files (raw.pixls.us 7881–7884, CC0) are pinned to LightCraft's own decode; no external
decoder was run on them:
| File | Input SHA-256 | Sensor FNV-1a (u16 little-endian) |
|---|---|---|
| Canon R5 Mark II RAW, raw.pixls.us 7881 | `d6e6aa3b493ea8936dff0efb0cc17c87471437e7317bce37c8c82ba08b9cab7b` | `ff716fb30248496f` |
| Canon R5 Mark II C-RAW, raw.pixls.us 7882 | `b3c08a5c7a97299dfd58896a12b939e7b43ec78682761812524825e6e5d087be` | `af32b45357b534e5` |
| Canon R5 Mark II crop-mode RAW, raw.pixls.us 7883 | `9f88c0ff012924193b7f4497559d133dfe626766d600b5d67689156721739ead` | `31cf630afe868958` |
| Canon R5 Mark II crop-mode C-RAW, raw.pixls.us 7884 | `6a597497776a6abbfab8fcf12d0086ac7a3f8afea2879d61accf6bbf48d357d7` | `4721605b20339332` |
Reference pixels were observed from the DNGLab 0.8.0 macOS arm64 release
binary; no decoder source was read or copied, and it is not shipped or linked.
The release ZIP SHA-256 was
@@ -69,6 +79,34 @@ the nonlinear integer table, then multiplication, division by eight, addition
of the subband base and a minimum step of one. QP values 131–167 are verified;
unmeasured values are rejected.
The QP map is coded as follows (established on the EOS R5 Mark II). Its first symbol is a 32-bit
big-endian literal, mapped like every other symbol and added to a prediction of zero. Every later
symbol is Rice coded with a limited-length escape: a quotient of 23 or more is written as 23 zeros,
the terminating 1 and the symbol in 8 bits. This is the escape layout of ITU-T T.87 for a 32-bit
code-length limit and 8-bit symbols, without that standard's minus-one offset. In the R8 maps only
the first symbol needs more than 15 leading zeros, and its bits read the same whether taken as a
32-bit literal or as an escape after 16 zeros with a 16-bit literal (the rule LightCraft used before).
The R7 maps decoded to their exact ends under that rule, which a later long prefix would have broken;
no R7 file was at hand to recheck them. R5 Mark II maps (QP 150–162) also jump by up to 12 where the Rice parameter is 0. That
gives 18- to 22-zero prefixes, which the 16-zero rule misread as escapes ("Canon CRX adaptive QP value
−21087" and other out-of-range values; the file then opened as a preview). It also gives real escapes,
symbols 23 and 24. Escapes were seen only where the Rice parameter is 0 (in 100 of 612 maps; all 351 inspected, up to 10 per map); at a larger
parameter they would use the same layout, which is unobserved. With this coding the QP maps of all
33,665 R5 Mark II C-RAW files in a private library (version `0x200`, 8480 × 5650) decode to the exact
end of their entropy streams, with values 150–162. So do the reduced-size tracks of 306 of those
files, the two CC0 R5 Mark II C-RAW files above and the R8 C-RAW fixture; all six fixture hashes are
unchanged. Under the 16-zero rule, 174 of those 306 files (57%) failed and opened as previews, all
with out-of-range values (none at QP 168). The two CC0 C-RAW files are low-ISO shots whose maps need no
long prefix: they decoded under the old rule too, so the escape is covered by synthetic unit tests in
`crx.rs` rather than by a public file. Render cache version 43 redraws thumbnails of files whose decode
changed; photos imported as preview-only switch over with Photo ▸ Reload from Disk.
The R5 Mark II sensor has 5650 rows (3574 in crop mode), so its Bayer planes have odd heights (2825,
1787). Lossless planes decode as before. In C-RAW every wavelet level has an odd height (2825 → 1413 →
707), and each subband's entropy stream ends exactly where the subband geometry says. The synthesis
uses the same boundary rules that are verified on the R8's odd lengths. Decoded rows show no step
down to the last sensor row, and the developed images match the camera's embedded JPEGs at 100 %.
An odd QP-map height (EOS R7: 4732 sensor rows give 1183 QP rows) leaves the
last row of the second-level high-frequency bands without a partner row; that
row's QP is used on its own. The odd-height map decodes to the exact end of its
docs/gaps.md
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@@ -1,6 +1,6 @@
# Gaps: where LightCraft falls short of Lightroom
> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-11 · **Change:** minor (CR3 entry names the EOS R7 C-RAW fix and the refused CRX variants; CI and Windows / Linux entries note the 0.6.0 riscv64 build; camera colour: tone curve from black-and-white camera JPEGs; Compare and Reference get sharp zoom windows; gap 4 shrinks; gap 14: the HDR switch is read from crs XMP) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-11 · **Change:** minor (CR3 entry names the EOS R7 C-RAW fix and the refused CRX variants; CI and Windows / Linux entries note the 0.6.0 riscv64 build; camera colour: tone curve from black-and-white camera JPEGs; Compare and Reference get sharp zoom windows; gap 4 shrinks; gap 14: the HDR switch is read from crs XMP; gaps 2 and 10: EOS R5 Mark II CR3 verified) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
Every known shortfall, one entry each, ranked by user impact (how many Lightroom users hit it, and
how hard it blocks them), then by effort. **Agents pick work from the top** (the first entry nobody is
@@ -16,7 +16,7 @@ Hours are Opus 5.5 agent wall-clock hours (see [target-app-parity.md](target-app
| # | Gap | Evidence | User impact | Hours | Doc |
|---:|---|---|---|---:|---|
| 1 B | **Camera colour is estimated, not measured** (LR-PROF-CAMERACOLOR). Raws start from a per-file fit to the camera JPEG, 4 bundled profiles or 52 spectral matrices; others use a neutral matrix (a black-and-white camera JPEG gives its tone curve only, #577) | ΔE vs camera JPEG 2.9–10 after fitting (raw-parity.md); 0 chart-calibrated models vs 1,500 Adobe Standard profiles | every raw shooter sees colour that is close but not Lightroom's; some get neutral-matrix colour | 50–90 | [raw-parity](raw-parity.md#colour) |
| 2 B | **CR3 beyond three verified bodies** (LR-IMP-FORMATS): `crx.rs` refuses vertical-tile C-RAW, partial-subband and other plane coding, multi-tile 0x200 and adaptive low-frequency gains, and those files fall back to the preview; CR3 sRAW / mRAW and HEIF CR3 too. EOS R7 C-RAW (odd-height QP map) decodes since a45c2b66 and R6 Mark II C-RAW is reported working on 0.6.0, but neither is verified yet (no corpus test or recorded check) | measured: Canon is the largest bucket (33% of photographers) and its share whose camera fully works is the lowest of the big four, 72%; 17 of 22 popular Canon bodies write CR3, 2 verified (raw-parity.md); R7 rule checked only on paired RAW / C-RAW captures ([cr3.md](cr3.md)) | +6.5 points of photographers whose camera works, the biggest single raw gain | 25–45 | [raw-parity](raw-parity.md#remaining-work-ranked-by-photographers-unlocked-per-hour) |
| 2 B | **CR3 beyond four verified bodies** (LR-IMP-FORMATS): `crx.rs` refuses vertical-tile C-RAW, partial-subband and other plane coding, multi-tile 0x200 and adaptive low-frequency gains, and those files fall back to the preview; CR3 sRAW / mRAW and HEIF CR3 too. Verified: M50 / R100 / R8 / R5 Mark II. EOS R7 C-RAW (odd-height QP map) decodes since a45c2b66 and R6 Mark II C-RAW is reported working on 0.6.0, but neither is verified yet (no corpus test or recorded check) | measured: Canon is the largest bucket (33% of photographers) and its share whose camera fully works is the lowest of the big four, 73%; 18 of 22 popular Canon bodies write CR3, 4 verified (raw-parity.md); R7 rule checked only on paired RAW / C-RAW captures ([cr3.md](cr3.md)) | +6.2 points of photographers whose camera works, the biggest single raw gain | 25–45 | [raw-parity](raw-parity.md#remaining-work-ranked-by-photographers-unlocked-per-hour) |
| 3 B | **Render fidelity unmeasured** (LR-BEHAV-RENDER-FIDELITY): tone, highlights, texture / clarity / dehaze, NR and sharpening are tuned by eye | no side-by-side suite; a retune needs a new process version (only V1 exists) | edits imported from Lightroom look different; the look "isn't Lightroom's" | 30–60 | [raw-parity](raw-parity.md), [process-versions](process-versions.md) |
| 4 B | **Original-pixel detail at 100%** (LR-VIEW-ZOOM, P0): Detail, Before/After, Compare and Reference are sharp at 1:1–8:1 (zoom windows, #323). Mask overlays and soft proofing still render the whole frame at the drawn size instead of a window: sharp up to the GPU texture side, but a full-size render per edit at 1:1 | checklist row 🟡 | editing with a mask overlay or soft proof on at 1:1 is slow on large files, and blurry past the texture side | 4–8 | [ui-parity](ui-parity.md) |
| 5 B | **AI masks: Subject, Sky, People, Background, Landscape** are heuristics; Object / Describe run SAM 3 but its download has no mirror configured | `crates/segment`; ai-masks.md; MASK rows 67% | masking is how most Lightroom users edit today | 40–70 + model decision | [target-app-parity](target-app-parity.md#ai) |
@@ -24,7 +24,7 @@ Hours are Opus 5.5 agent wall-clock hours (see [target-app-parity.md](target-app
| 7 | **Nikon High Efficiency NEF** (HE / HE★ on Z 8, Z 9, Z 6III, Z f, Z50II, Z5II when set to HE) | named and preview only (#193); needs a pure-Rust JPEG XS decoder | +1.1 points (only shots taken in HE; lossless works on the same bodies); low gain per hour (~0.04), so not a beta blocker | 20–40 | [raw-parity](raw-parity.md) |
| 8 B | **No lens profile database** (LR-EDIT-OPTICS-PROFILE): only DNG opcodes, RW2 in-file distortion and Sony ILCE-7RM4A distortion | Adobe ships 3,635 lens profiles; we never use them | distortion / vignetting correction is a default step for many | 40–80 + calibration shots | [raw-parity](raw-parity.md#lens-profiles) |
| 9 B | **Tests don't run in CI on macOS, Windows or Linux x64**: only FreeBSD runs `cargo test`; the others build packages | `.github/workflows/` (freebsd, packaging-lint, release, windows-arm64); the linux-riscv64 release job added in 0.6.0 (#844) runs only `lightcraft-cli --version` under QEMU | regressions reach users on the main platforms; `cargo xtask ci` runs only locally | 6–12 | [target-app-parity](target-app-parity.md#by-dimension) |
| 10 B | **Per-model verification thin, plus cheap per-body decode fixes**: 234 of 1,446 Adobe models verified (16%), ~40% of photographers on a verified body; Nikon 5 bodies verified, Canon 11. Cheap fixes: Z 6II packed 14-bit NEF (#769, PR #671), Sony A100 / F828 regression (#702), DSLR-A200…A390 / A850 12-bit ARW (#535) | measured: [raw/coverage.tsv](raw/coverage.tsv) | per-body bugs (levels, crops, WB) surface only from users | 25–45 | [raw-parity](raw-parity.md#by-maker-measured) |
| 10 B | **Per-model verification thin, plus cheap per-body decode fixes**: 235 of 1,446 Adobe models verified (16%), ~42% of photographers on a verified body; Nikon 5 bodies verified, Canon 12. Cheap fixes: Z 6II packed 14-bit NEF (#769, PR #671), Sony A100 / F828 regression (#702), DSLR-A200…A390 / A850 12-bit ARW (#535) | measured: [raw/coverage.tsv](raw/coverage.tsv) | per-body bugs (levels, crops, WB) surface only from users | 25–45 | [raw-parity](raw-parity.md#by-maker-measured) |
| 11 | **Enhance: Raw Details, Super Resolution; AI denoise without shippable weights or X-Trans** | ENH rows 0%; denoise Bayer only, RawNIND weights GPL and opt-in | Fujifilm users get no AI denoise; nobody gets it out of the box | 30–60 + model decision | [raw-parity](raw-parity.md#demosaic-levels-crops-and-lens-metadata) |
| 12 | **Content-aware / generative remove, detect distractions, reflections removal** | REM rows 75%; patch synthesis missing | cleanup work goes back to Photoshop | 25–45 (+ generative model) | [target-app-parity](target-app-parity.md#ai) |
| 13 | **Lightroom catalog migration is one-way and approximate**: unsupported Adobe profiles / AI settings archived, history kept as data | lightroom-catalog-import.md | switching users lose some looks | 8–12 | [file-format-parity](file-format-parity.md) |
@@ -77,6 +77,7 @@ Beta-blocking gaps (B) total **~230–430 h**; with the stability and platform w
| 2026-10-11 | minor | Gap 4: Compare and Reference views get zoom windows per pane (1:1 was a 2,560 px render magnified); overlays and soft proofing remain, 8–15 h → 4–8 h |
| 2026-10-10 | minor | Compressed ORF entry links the two Olympus patents that describe the method |
| 2026-10-11 | minor | Gap 14: `crs:HDREditMode` is read from XMP (#663); the headroom limit and SDR rendition still aren't |
| 2026-10-11 | minor | Gaps 2 and 10 shrink: EOS R5 Mark II CR3 decodes and is verified (fourth CR3 body, Canon 12 verified, 235 models, ~42% on a verified body); CR3 gain +6.5 → +6.2 points |
| 2026-10-10 | minor | RAW gaps re-measured model by model (raw-parity.md): CR3, compressed ORF and verification entries carry measured shares; HE NEF no longer a beta blocker (+1.1 points for 20–40 h); verification entry absorbs the cheap per-body fixes (#769, #702, A200 series) |
| 2026-10-10 | minor | Beta total raised to 340–600 h to include the ~92 open core-path user issues |
| 2026-10-10 | major | Created from the checklist's Top gaps (whose items 1–2 had been duplicated by a merge) and ROADMAP's Where we stand; re-ranked; added evidence, impact, hours and beta flags; added platform-CI, lens-database, HE NEF and localization gaps |
docs/parity-checklist.md
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# Lightroom parity checklist
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (rapid slider entry; LR-PROF-CAMERACOLOR: tone curve from black-and-white camera JPEGs; LR-VIEW-ZOOM, LR-VIEW-COMPARE: Compare and Reference zoom windows) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (rapid slider entry; LR-PROF-CAMERACOLOR: tone curve from black-and-white camera JPEGs; LR-VIEW-ZOOM, LR-VIEW-COMPARE: Compare and Reference zoom windows; LR-IMP-FORMATS, LR-IMP-CAMERA-COVERAGE: EOS R5 Mark II CR3 decodes) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
The measured, row-by-row checklist: one row per Lightroom feature, menu item and shortcut, what we
have and what is missing. It answers *does the feature exist?* (feature breadth). Whether it is good
@@ -80,8 +80,8 @@ differences and missing bindings are in [ui-parity.md](ui-parity.md#shortcuts).
| LR-IMP-PROFILES | Import profiles & presets | P1 | ✅ | `cmd:file.importPresets`, `cmd:preset.import`, `cmd:profile.import`, `crates/engine/src/preset_import.rs`, `crates/engine/src/preset_luminar.rs` | presets: .lcpreset, XMP, classic .lrtemplate, photos carrying edits ("DNG presets"), Luminar looks (.lmp, .mplumpack collections; sliders with a counterpart), .zip bundles, folders (folder → group), drag & drop (an `.xmp` dropped together with its photo is that photo's sidecar and is not imported as a preset, issue #936); masks carried over; unmapped settings reported (fields that only describe the preset or photo, e.g. `Cluster`, `SortName`, `SupportsAmount2`, the as-shot white, empty Point Color slots, are not); profiles: .cube 3D LUTs; Adobe profile formats deliberately unsupported |
| LR-IMP-LOCAL | Work on files in place | P0 | ✅ | `cmd:library.browse`, `cmd:photo.addToLibrary`, `cmd:library.import` (mode add), `cmd:local.addRoot`, `cmd:local.hide`, `cmd:local.restoreHidden`, `crates/engine/src/cmd/browse.rs`, `crates/ui-egui/src/panels/left.rs` (`local_section`), `crates/ui-egui/src/panels/grid.rs` (`folder_header`) | Local: browse Pictures / Desktop / Downloads / Home or any folder without adding it (breadcrumb, Include subfolders, Add N to My Photos); browsed photos stay out of All Photos, albums and counts (album commands skip them and the album menus say to Add to My Photos first, issue #684); folders picked with Browse Folder… (or Keep in Local / Add to Local on a folder row) stay listed across restarts, and browsing a folder inside a listed one highlights it inside that tree (opened down to it, siblings reachable) instead of adding a root; edits go to XMP sidecars; importing promotes them; right-click a top-level location → Remove from Local hides the shortcut only (nothing on disk or in the catalog changes), saved with the UI state, and “Show N hidden locations” (or Browse Folder… on it) brings it back; a folder is one location however its path is spelled (`/` or `\`, trailing separator, `.`/`..`, drive-letter case; `folder_key` in `crates/catalog/src/query.rs`); browsed photos nobody changed are forgotten once their folder has not been browsed for 30 days (Settings → Performance → Local folders, 0 = never; checked when the library opens, or `cmd:library.forgetLocal` with `dryRun`; files and sidecars stay, browsing again brings them back; see `crates/catalog/src/local.rs` for what counts as a change) |
| LR-IMP-SIDECAR-SPLIT | Separate XMP sidecar variants | P2 | ⬜ | `cmd:library.xmpPreferences` | sidecar naming option exists (stem/full), no split sidecars |
| LR-IMP-FORMATS | Supported formats | P0 | 🟡 | `crates/codecs/src/lib.rs`, `crates/raw/src/lib.rs`, `crates/raw/src/jxl.rs` | JPEG, PNG, TIFF (1- to 64-bit integer, 16- to 64-bit float, incl. bilevel and CCITT fax), WebP, JXL, PSD, GIF, BMP; DNG (incl. lossy / Smart Preview DNG and DNG 1.7 JPEG XL tiles/strips: lossless ones decode bit-exactly on synthetic CFA and LinearRaw files, lossy ones are restored to the declared linear primaries without clipping or gamut mapping, checked on one real file with 108 lossy tiles, and any tile that fails to decode makes the file preview-only; DNG 1.7 row/column-interleaved rasters (`RowInterleaveFactor` / `ColumnInterleaveFactor`) are undone before the mosaic is read, so a file from Adobe's converter with a 2×2 interleave no longer decodes as four scaled-down copies in the wrong colours; a dimension the factor does not divide decodes with short trailing fields; verified on 4 real ILCE-6400 JPEG XL DNGs rendering bit-identical to their non-interleaved twins, factors above 2 rest on the plain reading of the tag; a single-chunk JPEG XL preview IFD is offered as the embedded preview; a DNG whose samples pile up at one value well below its stated `WhiteLevel`, as a camera app's 12-bit Bayer DNG that states 4095 and clips at 3567, has those samples raised to the white level on decode, so highlight reconstruction sees the clipped areas instead of white balance tinting them magenta, issue #548, `crates/raw/src/saturation.rs`), CR2 (colour-filter layout from the file's `CR2CFAPattern` tag, issue #85), ARW (pre-2017 bodies: white balance and black level from the encrypted `SR2SubIFD`, issue #148, its `WB_RGGBLevels` being the white balance the camera applied, issue #535; the DSLR-A900's packed 12-bit strip, two pixels per three bytes, read only when the strip is exactly 1.5 bytes per pixel, with its camera-JPEG window centred, checked on one CC0 file (A850 unmeasured); downsized Sony lossless YCbCr 4:2:0 / 4:2:2 tiles decoded to linear RGB, verified on private ILCE-7M4 3:2 & 4:3 examples including 16-bit full-resolution export; Sony DSC-R1 .SR2 decodes, its big-endian 16-bit words read in the order that fits the sample range, checked on the CC0 3221 sample; its crop and white balance live in the SR2SubIFD and are not read yet), NEF (uncompressed, lossless and lossy compressed 12/14-bit, `crates/raw/src/vendor/nefc.rs`), RAF (uncompressed, lossless/lossy compressed Bayer and X-Trans; `crates/raw/src/vendor/rafc.rs`, full sensor verification on 13 bodies, `docs/raf-compression.md`), RW2 / Leica RWL / Panasonic RAW in every raw format (compressed 4 and 6, the prefix-coded strips of format 8 from the GH6 on, packed 2/5/7, the 16-bit words of the 2005–2007 bodies; black levels, in-camera aspect crops and mapped-out defect pixels; 178 CC0 files from 118 bodies checked, `crates/raw/src/vendor/rw2.rs`), PEF, ORF (uncompressed; colour-filter layout from the file's Exif `CFAPattern`; 12.8 bit/px 16-byte blocks of ten 12-bit samples + a zero pad byte, E-300 / E-330 / E-500 verified on CC0 files, E-M5 Mark II / PEN-F high-res files decode smooth but CFA and black unverified), Kodak DCS520C TIFF (a two-component 12-bit lossless JPEG strip, the two components the even and odd columns; the file's `GrayResponseCurve` table linearises the companded samples to 12 bits, black measured per CFA position, white balance from the `KodakIFD`; `RawFormat::KodakDcs`, `crates/raw/src/vendor/kodak.rs`, checked on the one CC0 sample against its IFD0 thumbnail), Hasselblad 3FR and FFF (a TIFF without a DNG version tag that describes its CFA IFD, levels, crop and white balance with DNG's tags; `RawFormat::CfaTiff`, read by `dng::decode_as`, RGGB when the file states no `CFAPattern`): uncompressed (X1D, X1D II, X2D, CFV 100C) and Hasselblad's lossless JPEG with scan selection value 8 (every FFF; H3D, H4D and CFV-50c 3FR), `ljpeg::decode_hasselblad`, its rule measured on 14 CC0 files with the ljpeg-explorer tool, Samsung SRW without compression (NX5, NX10, NX11 and the NX20-generation bodies NX20, NX200, NX210, NX1000 and NX1100 as 12-bit packed samples in either bit order, EX1 and WB2000 as 16-bit words; layout, camera-JPEG framing, levels and white balance from the maker note, `crates/raw/src/vendor/srw.rs`; median ΔE vs the camera JPEG 2.2–7.6 on 11 of the 12 files from 10 bodies checked, 10.7 (5.7 registered) on the backlit WB2000 sample). 12-bit NEF black level: maker note `0x003d` is in 14-bit units (D750, D780, D850, D7500, Z 50 checked). Lossy type 2 NEF curves of version `0x44 0x40` (D780, D6, Z 5, Z 6, Z 7, Z 7_2) span a quarter of the sample range, read from the table's own point spacing. Import probes (`probe_info`) of compressed NEFs decode only the first 128 rows, the ones the masked-trailing-column test reads in both the probe and the full decode (the D5100 and D7000 write 8 masked columns at 0 with no maker-note tag for them, compressed and uncompressed alike), instead of the whole HuffmLine truncated
| LR-IMP-CAMERA-COVERAGE | Camera coverage, verified per model | P0 | 🟡 | `crates/raw/tests/corpus.rs`, `xtask/src/main.rs` | a supported container is not the same as every camera that writes it decoding correctly: ~55 CC0 corpus files plus 6 exact-sensor CR3 cases (plus ~60 NEFs checked by hand and 178 Panasonic / Leica RW2, RWL and RAW files from 118 bodies, checked against each file's own JPEG) against the >1,000 models Lightroom lists; per-model differences still surface (e.g. the CR2 colour-filter layout differed by model until it was read from the file's own tag, issue #85, checked on 35 CR2 bodies; CR2 black levels were read from border columns light already reaches, left of `SensorInfo`'s border, so CR2s rendered dark with crushed shadows (EOS 6D: 2591 instead of 2047), now measured from the masked columns only, checked on 8 corpus bodies; pre-2017 Sony ARWs opened green until their scrambled white balance / black level were read, issue #148, checked on 16 ARWs from 15 Sony bodies; their white balance now comes from the encrypted `SR2SubIFD`'s `WB_RGGBLevels`, the gains the camera applied, which 14 bodies (DSLR-A450 … A700, NEX-3/5/C3, SLT-A33/A35/A55, ILCE-6001, UMC-R10C) had no other source for and which the maker-note estimate read before missed by up to 100 % on preset shots, issue #535, checked against ExifTool on 100 decoded ARWs from 87 Sony bodies; the encrypted SR2 black level is now read from its directory entry (the DSLR-A450/A500/A550/A700 read 354–975 instead of 512), checked on 126 ARWs from 97 Sony bodies, and downsized lossless M/S ARWs use their measured black level 1024 instead of 512, checked on 12 files from 4 bodies, issue #535, and on a fifth, the ILCE-7CM2 (issue #697: 0.5.0 rendered its lossless M file with that 512 pedestal, the darkest half of a dusk scene +11 L* and blue, the lamplight white; its darkest 0.1 % per channel sits at 1017/1020/1024, and with 1024 the render is within +3 L* of the camera JPEG; the body's compressed and uncompressed "M-size" files are Bayer at 4736×3132 with black 512, two public ones in the corpus); pre-2017 Sony bodies shot in the camera's 16:9 mode (ILCE-7SM2, DSLR-A580) now get the 16:9 crop of their camera JPEG instead of the whole 3:2 frame with padding columns, issue #535; Canon PowerShot and EOS M CR2s whose `ColorData` is stored as bytes opened green until the bytes were read as 16-bit words, 25 files from 25 bodies checked). Compressed RAF sensor arrays verified on 13 Fujifilm bodies (`docs/raf-compression.md`). Sony ILCE-7CR (61 MP): lossless compressed L and M and compressed ARW2 samples of one scene in the corpus (black level, default crop, as-shot gains, lossless vs compressed mosaic agreement, fitted camera look), and all nine public codings (also uncompressed, small and APS-C crop) decode and fit. Grow the CC0 corpus per model and test each sample decodes with plausible colour. Nikon CropArea and untagged-preview colour-space regression tests; private Z 8 crop verified; the Nikon D4, which records no CropArea, gets its image area and white level measured on 148 NEFs against the camera JPEG (optical-black stripes and magenta clipped highlights gone). |
| LR-IMP-FORMATS | Supported formats | P0 | 🟡 | `crates/codecs/src/lib.rs`, `crates/raw/src/lib.rs`, `crates/raw/src/jxl.rs` | JPEG, PNG, TIFF (1- to 64-bit integer, 16- to 64-bit float, incl. bilevel and CCITT fax), WebP, JXL, PSD, GIF, BMP; DNG (incl. lossy / Smart Preview DNG and DNG 1.7 JPEG XL tiles/strips: lossless ones decode bit-exactly on synthetic CFA and LinearRaw files, lossy ones are restored to the declared linear primaries without clipping or gamut mapping, checked on one real file with 108 lossy tiles, and any tile that fails to decode makes the file preview-only; DNG 1.7 row/column-interleaved rasters (`RowInterleaveFactor` / `ColumnInterleaveFactor`) are undone before the mosaic is read, so a file from Adobe's converter with a 2×2 interleave no longer decodes as four scaled-down copies in the wrong colours; a dimension the factor does not divide decodes with short trailing fields; verified on 4 real ILCE-6400 JPEG XL DNGs rendering bit-identical to their non-interleaved twins, factors above 2 rest on the plain reading of the tag; a single-chunk JPEG XL preview IFD is offered as the embedded preview; a DNG whose samples pile up at one value well below its stated `WhiteLevel`, as a camera app's 12-bit Bayer DNG that states 4095 and clips at 3567, has those samples raised to the white level on decode, so highlight reconstruction sees the clipped areas instead of white balance tinting them magenta, issue #548, `crates/raw/src/saturation.rs`), CR2 (colour-filter layout from the file's `CR2CFAPattern` tag, issue #85), ARW (pre-2017 bodies: white balance and black level from the encrypted `SR2SubIFD`, issue #148, its `WB_RGGBLevels` being the white balance the camera applied, issue #535; the DSLR-A900's packed 12-bit strip, two pixels per three bytes, read only when the strip is exactly 1.5 bytes per pixel, with its camera-JPEG window centred, checked on one CC0 file (A850 unmeasured); downsized Sony lossless YCbCr 4:2:0 / 4:2:2 tiles decoded to linear RGB, verified on private ILCE-7M4 3:2 & 4:3 examples including 16-bit full-resolution export; Sony DSC-R1 .SR2 decodes, its big-endian 16-bit words read in the order that fits the sample range, checked on the CC0 3221 sample; its crop and white balance live in the SR2SubIFD and are not read yet), NEF (uncompressed, lossless and lossy compressed 12/14-bit, `crates/raw/src/vendor/nefc.rs`), RAF (uncompressed, lossless/lossy compressed Bayer and X-Trans; `crates/raw/src/vendor/rafc.rs`, full sensor verification on 13 bodies, `docs/raf-compression.md`), RW2 / Leica RWL / Panasonic RAW in every raw format (compressed 4 and 6, the prefix-coded strips of format 8 from the GH6 on, packed 2/5/7, the 16-bit words of the 2005–2007 bodies; black levels, in-camera aspect crops and mapped-out defect pixels; 178 CC0 files from 118 bodies checked, `crates/raw/src/vendor/rw2.rs`), PEF, ORF (uncompressed; colour-filter layout from the file's Exif `CFAPattern`; 12.8 bit/px 16-byte blocks of ten 12-bit samples + a zero pad byte, E-300 / E-330 / E-500 verified on CC0 files, E-M5 Mark II / PEN-F high-res files decode smooth but CFA and black unverified), Kodak DCS520C TIFF (a two-component 12-bit lossless JPEG strip, the two components the even and odd columns; the file's `GrayResponseCurve` table linearises the companded samples to 12 bits, black measured per CFA position, white balance from the `KodakIFD`; `RawFormat::KodakDcs`, `crates/raw/src/vendor/kodak.rs`, checked on the one CC0 sample against its IFD0 thumbnail), Hasselblad 3FR and FFF (a TIFF without a DNG version tag that describes its CFA IFD, levels, crop and white balance with DNG's tags; `RawFormat::CfaTiff`, read by `dng::decode_as`, RGGB when the file states no `CFAPattern`): uncompressed (X1D, X1D II, X2D, CFV 100C) and Hasselblad's lossless JPEG with scan selection value 8 (every FFF; H3D, H4D and CFV-50c 3FR), `ljpeg::decode_hasselblad`, its rule measured on 14 CC0 files with the ljpeg-explorer tool, Samsung SRW without compression (NX5, NX10, NX11 and the NX20-generation bodies NX20, NX200, NX210, NX1000 and NX1100 as 12-bit packed samples in either bit order, EX1 and WB2000 as 16-bit words; layout, camera-JPEG framing, levels and white balance from the maker note, `crates/raw/src/vendor/srw.rs`; median ΔE vs the camera JPEG 2.2–7.6 on 11 of the 12 files from 10 bodies checked, 10.7 (5.7 registered) on the backlit WB2000 sample). 12-bit NEF black level: maker note `0x003d` is in 14-bit units (D750, D780, D850, D7500, Z 50 checked). Lossy type 2 NEF curves of version `0x44 0x40` (D780, D6, Z 5, Z 6, Z 7, Z 7_2) span a quarter of the sample range, read from the table's own point spacing. Import probes (`probe_info`) of compressed NEFs decode only the first 128 rows, the ones the masked-trailing-column test reads in both the probe and the full decode (the D5100 and D7000 write 8 masked columns at 0 with no maker-note tag for them, compressed and uncompressed alike), instead of the whole HuffmLine truncated
| LR-IMP-CAMERA-COVERAGE | Camera coverage, verified per model | P0 | 🟡 | `crates/raw/tests/corpus.rs`, `xtask/src/main.rs` | a supported container is not the same as every camera that writes it decoding correctly: ~55 CC0 corpus files plus 6 exact-sensor CR3 cases and 4 pinned EOS R5 Mark II files (plus ~60 NEFs checked by hand and 178 Panasonic / Leica RW2, RWL and RAW files from 118 bodies, checked against each file's own JPEG) against the >1,000 models Lightroom lists; per-model differences still surface (e.g. the CR2 colour-filter layout differed by model until it was read from the file's own tag, issue #85, checked on 35 CR2 bodies; CR2 black levels were read from border columns light already reaches, left of `SensorInfo`'s border, so CR2s rendered dark with crushed shadows (EOS 6D: 2591 instead of 2047), now measured from the masked columns only, checked on 8 corpus bodies; pre-2017 Sony ARWs opened green until their scrambled white balance / black level were read, issue #148, checked on 16 ARWs from 15 Sony bodies; their white balance now comes from the encrypted `SR2SubIFD`'s `WB_RGGBLevels`, the gains the camera applied, which 14 bodies (DSLR-A450 … A700, NEX-3/5/C3, SLT-A33/A35/A55, ILCE-6001, UMC-R10C) had no other source for and which the maker-note estimate read before missed by up to 100 % on preset shots, issue #535, checked against ExifTool on 100 decoded ARWs from 87 Sony bodies; the encrypted SR2 black level is now read from its directory entry (the DSLR-A450/A500/A550/A700 read 354–975 instead of 512), checked on 126 ARWs from 97 Sony bodies, and downsized lossless M/S ARWs use their measured black level 1024 instead of 512, checked on 12 files from 4 bodies, issue #535, and on a fifth, the ILCE-7CM2 (issue #697: 0.5.0 rendered its lossless M file with that 512 pedestal, the darkest half of a dusk scene +11 L* and blue, the lamplight white; its darkest 0.1 % per channel sits at 1017/1020/1024, and with 1024 the render is within +3 L* of the camera JPEG; the body's compressed and uncompressed "M-size" files are Bayer at 4736×3132 with black 512, two public ones in the corpus); pre-2017 Sony bodies shot in the camera's 16:9 mode (ILCE-7SM2, DSLR-A580) now get the 16:9 crop of their camera JPEG instead of the whole 3:2 frame with padding columns, issue #535; Canon PowerShot and EOS M CR2s whose `ColorData` is stored as bytes opened green until the bytes were read as 16-bit words, 25 files from 25 bodies checked). Compressed RAF sensor arrays verified on 13 Fujifilm bodies (`docs/raf-compression.md`). Sony ILCE-7CR (61 MP): lossless compressed L and M and compressed ARW2 samples of one scene in the corpus (black level, default crop, as-shot gains, lossless vs compressed mosaic agreement, fitted camera look), and all nine public codings (also uncompressed, small and APS-C crop) decode and fit. Grow the CC0 corpus per model and test each sample decodes with plausible colour. Nikon CropArea and untagged-preview colour-space regression tests; private Z 8 crop verified; the Nikon D4, which records no CropArea, gets its image area and white level measured on 148 NEFs against the camera JPEG (optical-black stripes and magenta clipped highlights gone). |
| LR-IMP-CULL-AT-IMPORT | Culling analysis at import | P2 | 🟡 | `cmd:photo.analyze` | run Assisted Culling on the imported photos (they're selected after an import); not automatic |
| LR-IMP-MOVE | Move on import [Classic] | P1 | ✅ | `cmd:library.import` (`mode` move), `crates/engine/src/import_move.rs`, `crates/engine/src/tests_import_move.rs`, `crates/ui-egui/src/import.rs` | Transfer ▸ Move with Copy's destination, folders (day / month / one folder / custom template), rename template and example destination; XMP sidecars (both namings) move along; each source is removed only after its destination is written (hard link on the same volume, else copied, synced and compared byte for byte) and its catalog record is saved; failed, duplicate, unchecked files keep their sources, taken names get -1, -2…, never overwritten; files already in the destination/library are added in place; sources that can't be removed (read-only card) are kept and reported (`kept`). Undo removes the photos from the library but leaves the moved files at the destination. No Copy as DNG while moving |
| LR-IMP-DNG-CONVERT | Convert to DNG on import [Classic] | P2 | ✅ | `cmd:library.import` (`dng`), `crates/ui-egui/src/import.rs` | copy imports: Raw files ▸ Copy as DNG (lossless; the card is untouched); the raw copy is removed only once its DNG is verified and on disk (issue #106) |
@@ -783,5 +783,6 @@ Latin stays upright. Advanced Japanese composition remains open. Regression cove
| 2026-10-11 | minor | KEY-SLIDER-TYPE: honor immediate Return/Escape and keep typed keys in the value editor; add regression references |
| 2026-10-11 | minor | LR-PROF-CAMERACOLOR: raws with a black-and-white camera JPEG take its tone curve (issue #577) |
| 2026-10-11 | minor | LR-VIEW-ZOOM and LR-VIEW-COMPARE: Compare and Reference are sharp at 1:1 (zoom windows per pane, two originals kept decoded while they are open); statuses unchanged |
| 2026-10-11 | minor | LR-IMP-FORMATS and LR-IMP-CAMERA-COVERAGE: EOS R5 Mark II CR3 decodes from sensor data (57% of its C-RAW files opened as a preview: QP-map escape); status unchanged (🟡) |
| 2026-10-10 | minor | Renamed from `parity.md` (progress-docs standard); Top gaps moved to gaps.md (its duplicated items 1–2 from a bad merge resolved there), shortcut notes moved to ui-parity.md. Rows unchanged; a recount of the rows gives 81.1% of 517 in-scope rows (P0 98.0%, P1 95.1%, P2 46.9%), so the generated summary above is due a `cargo xtask parity --write` |
| 2026-09-30 – 2026-10-10 | — | Rows added and updated with each feature (see `git log -- docs/parity.md docs/parity-checklist.md`) |
docs/raw-parity.md
+19 -17
View File
@@ -1,6 +1,6 @@
# RAW parity: cameras, formats, demosaic, colour and lens profiles
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-10 · **Change:** major (model-by-model measurement against Adobe's published camera list; use-weighted coverage; variant matrix; colour and lens sections; ranked next cameras) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6 (Camera Raw 18.7)
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (EOS R5 Mark II decoded and verified: CRX QP-map escape, odd-height planes) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6 (Camera Raw 18.7)
Raw processing is the deepest single dimension of Lightroom parity: a photographer whose camera
does not decode, or decodes with the wrong colour, cannot switch. This document measures it model by
@@ -14,13 +14,13 @@ ranked in [gaps.md](gaps.md). Details per format: [cr3.md](cr3.md),
| Measure | Value | Kind |
|---|---:|---|
| Adobe-listed camera models | **1,446** | measured: [raw/adobe-cameras.tsv](raw/adobe-cameras.tsv) |
| Decoded from sensor data and **verified** on a real file | **234** (16%) | measured: [raw/evidence.tsv](raw/evidence.tsv) |
| Decoder path should handle it, **unverified** | **943** (65%) | measured from the format rules (632 of them DNG, mostly phones) |
| Decoded from sensor data and **verified** on a real file | **235** (16%) | measured: [raw/evidence.tsv](raw/evidence.tsv) |
| Decoder path should handle it, **unverified** | **942** (65%) | measured from the format rules (632 of them DNG, mostly phones) |
| **Preview-only** (embedded JPEG) | **233** (16%) | measured |
| **Unsupported** (not imported, refused or decodes wrongly) | **36** (2%) | measured |
| Models added since 2017 (Camera Raw 10+): verified / unverified / preview / unsupported | 81 / 641 / 24 / 8 of 754 | measured |
| **Share of photographers whose camera fully works** (decodes from sensor data), use-weighted | **~84%** | estimated: measured classes × written usage weights × per-format confidence |
| …of which on a body we have verified | **~40%** | estimated, same weights |
| Models added since 2017 (Camera Raw 10+): verified / unverified / preview / unsupported | 82 / 640 / 24 / 8 of 754 | measured |
| **Share of photographers whose camera fully works** (decodes from sensor data), use-weighted | **~85%** | estimated: measured classes × written usage weights × per-format confidence |
| …of which on a body we have verified | **~42%** | estimated, same weights |
| Camera colour: Adobe profiles vs ours | 1,500 Adobe Standard profiles, 481 models with Camera Matching profiles vs **4 bundled profiles** + per-file fits + 52 spectral matrices | measured (bundle listing, Adobe list, `assets/camera-profiles`) |
| Lens profiles: Adobe vs ours | **3,635 vs 0** (in-file corrections only) | measured |
| **RAW readiness** (decoding 60%, colour 25%, lens 15%) | **~56%** (range 50–60%) | estimated, see [Scores](#scores) |
@@ -42,7 +42,8 @@ committed table is stale.
claims were not used.
- **Verified** means a real file from that body decoded from sensor data in: the corpus test over the
`RAW_SAMPLES` manifest (`xtask/src/main.rs`, 101 CC0 files; bodies whose sample is in
`KNOWN_UNSUPPORTED` excluded), `crates/raw/tests/cr3_corpus.rs` (3 bodies, exact), the RAF reference
`KNOWN_UNSUPPORTED` excluded), `crates/raw/tests/cr3_corpus.rs` (3 bodies exact against an external decoder;
the EOS R5 Mark II pinned, with a QP-map check of 33,665 private files), the RAF reference
check ([raf-compression.md](raf-compression.md)), and the raw.pixls.us bulk checks recorded in issue
#535 (all 100 Sony bodies there; 87 decode) and PR #215 (every Panasonic / Leica RW2 / RWL / RAW body
there, 178 files from 118 bodies). Bulk-check body lists were matched to Adobe names through the
@@ -56,14 +57,14 @@ committed table is stale.
~8 years (listed in the file), 20% to the bucket's other Adobe models.
- **Per-format confidence** for unverified bodies (the chance their files decode correctly): DNG, CR2,
RAF, RW2 0.95; NEF, ARW, PEF 0.9; ORF, SRW, SR2 0.8; **CR3 0.6** (the CRX decoder refuses several
coding variants and only three bodies are verified; maintainers report the R7 working).
coding variants and only four bodies are verified; maintainers report the R7 working).
## By maker (measured)
| Maker | Adobe models | verified | unverified | preview | unsupported | Main reason for preview / unsupported |
|---|---:|---:|---:|---:|---:|---|
| Sony | 149 | 86 | 51 | 9 | 3 | DSLR-A200…A390 and A850 12-bit compressed ARW (preview, #535); A100 and DSC-F828 refused (regression #702); SRF not imported |
| Canon | 134 | 11 | 100 | 21 | 2 | CRW (2000–2004 bodies) preview; EOS-1D / 1Ds TIFF raws not imported |
| Canon | 134 | 12 | 99 | 21 | 2 | CRW (2000–2004 bodies) preview; EOS-1D / 1Ds TIFF raws not imported |
| Samsung | 128 | 1 | 118 | 9 | 0 | compressed SRW (NX1, NX30, NX300, NX500, NX2000, NX3000, NX3300, NX mini, Galaxy NX) |
| Apple | 113 | 1 | 112 | 0 | 0 | — (DNG / ProRAW) |
| Panasonic | 104 | 93 | 11 | 0 | 0 | — |
@@ -80,13 +81,13 @@ committed table is stale.
| DJI | 21 | 0 | 21 | 0 | 0 | — (DNG) |
| OM Digital Solutions | 7 | 0 | 0 | 7 | 0 | **compressed ORF** |
| Kodak, Konica Minolta, Epson, Sigma, GoPro, Contax, others | 56 | 0 | 14 | 27 | 15 | DCR, GPR not imported; KDC, MRW, ERF, X3F preview |
| **All** | **1,446** | **234 (16%)** | **943 (65%)** | **233 (16%)** | **36 (2%)** | |
| **All** | **1,446** | **235 (16%)** | **942 (65%)** | **233 (16%)** | **36 (2%)** | |
## By use (estimated)
| Bucket | Weight | Camera fully works | On a verified body | Why |
|---|---:|---:|---:|---|
| Canon | 33% | 72% | 16% | 17 of the 22 popular bodies write CR3; 2 of them verified, the rest at 0.6 |
| Canon | 33% | 73% | 19% | 18 of the 22 popular bodies write CR3; 4 of them verified (M50, R8, R100, R5 Mark II), the rest at 0.6 |
| Sony | 27% | 98% | 91% | bulk-checked |
| Nikon | 16% | 91% | 12% | decoders cover every NEF coding but HE; few bodies verified |
| Fujifilm | 10% | 91% | 45% | |
@@ -97,7 +98,7 @@ committed table is stale.
| Leica | 1% | 95% | 5% | |
| DJI | 1% | 95% | 0% | |
| Medium format and others | 0.5% | 23% | 0% | IIQ, 3FR, X3F |
| **Weighted** | 100% | **84%** | **40%** | |
| **Weighted** | 100% | **85%** | **42%** | |
About 5 in 6 raw photographers' cameras decode, but only about 2 in 5 use a body we have actually
checked, and Canon, the largest bucket, is the weakest of the big four.
@@ -110,8 +111,8 @@ checked, and Canon, the largest bucket, is the weakest of the big four.
|---|---|---|---|
| CR2 | lossless JPEG slices | ✅ | 8 corpus bodies; CFA phase from `CR2CFAPattern` (#85, 35 bodies); masked-column black level |
| CR2 | sRAW / mRAW (YCbCr) | ✅ | `vendor/cr2/sraw.rs`, 31 samples from 16 models |
| CR3 | CRX lossless, version 0x100 | ✅ | M50, R100, R8 exact against a reference |
| CR3 | C-RAW 0x100 (horizontal tiles), 0x200 (single 14-bit tile, adaptive QP) | ✅ | same 3 bodies exact |
| CR3 | CRX lossless, version 0x100 | ✅ | M50, R100, R8 exact against a reference; R5 Mark II (odd-height planes) pinned |
| CR3 | C-RAW 0x100 (horizontal tiles), 0x200 (single 14-bit tile, adaptive QP incl. the QP-map escape) | ✅ | same 3 bodies exact; R5 Mark II pinned, QP maps of 33,665 files decode exactly, matches the camera JPEG |
| CR3 | other CRX variants (vertical tiles, partial subbands, other plane flags, 0x200 multi-tile) | ⬜ | refused in `crx.rs`, falls back to the preview; which bodies write them is unmeasured |
| CR3 | sRAW / mRAW | ⬜ | 4-plane Bayer only |
| CR3 | HEIF / HDR PQ | ⬜ | HEVC tracks recognised, not decoded |
@@ -222,10 +223,10 @@ drone DNG users (~9% of photographers by the weights above); Adobe reaches nearl
| Part | Weight | Score | Basis |
|---|---:|---:|---|
| Decoding | 60% | **76%** | use-weighted 84% × 0.9 for per-body decode bugs still surfacing (levels, crops, WB: #535, #455, #461, #702) |
| Decoding | 60% | **77%** | use-weighted 85% × 0.9 (76.5%) for per-body decode bugs still surfacing (levels, crops, WB: #535, #455, #461, #702) |
| Colour | 25% | **35%** | see [Colour](#colour) |
| Lens profiles | 15% | **10%** | see [Lens profiles](#lens-profiles) |
| **RAW readiness** | 100% | **~56%** (range 50–60%) | 45.6 + 8.75 + 1.5; demosaic and highlight quality unmeasured |
| **RAW readiness** | 100% | **~56%** (range 50–60%) | 45.9 + 8.75 + 1.5; demosaic and highlight quality unmeasured |
The previous estimate (earlier on 2026-10-10) was ~50%, with decoding at ~78% weighted by maker
from the format list alone. Measured model by model, decoding comes out about the same; the change is
@@ -241,7 +242,7 @@ works, from [raw/usage-weights.tsv](raw/usage-weights.tsv).
| # | Camera / variant | Gain (points of photographers) | Hours | Gain per hour | Needs |
|---:|---|---:|---:|---:|---|
| 1 | Compressed ORF (every Olympus / OM body since ~2008) | +2.6 | 8–15 | ~0.20 | CC0 samples (have 2) |
| 2 | CR3: remaining CRX variants, then verify the 17 popular CR3 bodies | +6.5 | 25–45 | ~0.19 | samples per body (raw.pixls.us has most) |
| 2 | CR3: remaining CRX variants, then verify the other 14 popular CR3 bodies | +6.2 | 25–45 | ~0.19 | samples per body (raw.pixls.us has most) |
| 3 | Verify popular Nikon, Fujifilm, Canon CR2 and Pentax bodies (one CC0 file each, fix what breaks) | +2.0 | 8–15 | ~0.17 | public samples |
| 4 | Nikon packed 14-bit under a compressed tag (Z 6II uncompressed, #769) | +0.2 | 1–2 | ~0.13 | PR #671 exists |
| 5 | Sony DSLR-A200…A390 / A850 12-bit compressed ARW | +0.4 | 3–6 | ~0.08 | samples on raw.pixls.us |
@@ -265,5 +266,6 @@ Beyond decoding:
| Date | Change | Summary |
|---|---|---|
| 2026-10-10 | minor | Compressed ORF: pointer to the two Olympus patents that describe the method, as a clean-room starting point |
| 2026-10-11 | minor | EOS R5 Mark II verified (CRX QP-map first literal and limited-length escape, odd-height Bayer planes; 4 CC0 files pinned, QP maps of 33,665 private files): 235 verified, 942 unverified; use-weighted 85% (42% on verified bodies); decoding 77%, RAW readiness unchanged at ~56% |
| 2026-10-10 (later) | major | Model-by-model measurement against Adobe's published list (1,446 models: 234 verified, 943 unverified, 233 preview, 36 unsupported); `docs/raw/` data and re-measure script; use-weighted share 84% (40% on verified bodies); variant matrix; colour and lens sections with scores; ranked next cameras; RAW readiness ~56% from written parts |
| 2026-10-10 | major | Created: formats, makers, demosaic, colour and lens checklists; target counts from the installed Lightroom 9.6 bundle listing |
docs/raw/coverage.tsv
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@@ -188,7 +188,7 @@ Canon EOS R1 CR3 2023 unverified CRX decoder: lossless and C-RAW 0x100 / 0x200 s
Canon EOS R3 CR3 2021 unverified CRX decoder: lossless and C-RAW 0x100 / 0x200 single-tile; other variants fall back to the preview
Canon EOS R5 CR3 2019 unverified CRX decoder: lossless and C-RAW 0x100 / 0x200 single-tile; other variants fall back to the preview
Canon EOS R5 C CR3 2021 unverified CRX decoder: lossless and C-RAW 0x100 / 0x200 single-tile; other variants fall back to the preview
Canon EOS R5 Mark II CR3 2023 unverified CRX decoder: lossless and C-RAW 0x100 / 0x200 single-tile; other variants fall back to the preview
Canon EOS R5 Mark II CR3 2023 verified corpus: crates/raw/tests/cr3_corpus.rs (pinned sensor hashes, docs/cr3.md); bulk: QP maps of 33,665 C-RAW files
Canon EOS R6 CR3 2019 unverified CRX decoder: lossless and C-RAW 0x100 / 0x200 single-tile; other variants fall back to the preview
Canon EOS R6 V CR3 2025 unverified CRX decoder: lossless and C-RAW 0x100 / 0x200 single-tile; other variants fall back to the preview
Canon EOS R6 Mark II CR3 2022 unverified CRX decoder: lossless and C-RAW 0x100 / 0x200 single-tile; other variants fall back to the preview
Can't render this file because it contains an unexpected character in line 86 and column 19.
docs/raw/evidence.tsv
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@@ -11,6 +11,7 @@ Canon EOS 7D verified corpus: crates/raw/tests/corpus.rs (xtask RAW_SAMPLES)
Canon EOS 80D verified corpus: crates/raw/tests/corpus.rs (xtask RAW_SAMPLES)
Canon EOS M50 (EOS Kiss M) verified corpus: crates/raw/tests/cr3_corpus.rs (exact sensor hashes, docs/cr3.md)
Canon EOS R100 verified corpus: crates/raw/tests/cr3_corpus.rs (exact sensor hashes, docs/cr3.md)
Canon EOS R5 Mark II verified corpus: crates/raw/tests/cr3_corpus.rs (pinned sensor hashes, docs/cr3.md); bulk: QP maps of 33,665 C-RAW files
Canon EOS R8 verified corpus: crates/raw/tests/cr3_corpus.rs (exact sensor hashes, docs/cr3.md)
Canon EOS-5D Mark III verified corpus: crates/raw/tests/corpus.rs (xtask RAW_SAMPLES)
Fujifilm GFX 100 verified corpus: crates/raw/tests/corpus.rs (xtask RAW_SAMPLES)
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docs/target-app-parity.md
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@@ -1,6 +1,6 @@
# Target-app parity: LightCraft vs Adobe Lightroom
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-10 · **Change:** major (full re-measure against Lightroom Classic 15.5 and the installed Lightroom 9.6; merged ROADMAP's parity estimate and honest assessment into this file) · **Target:** Adobe Lightroom Classic 15.5 (August 2026) and Lightroom 9.6 (desktop)
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (EOS R5 Mark II CR3 verified: RAW decoding 76% → 77%; headline numbers unchanged) · **Target:** Adobe Lightroom Classic 15.5 (August 2026) and Lightroom 9.6 (desktop)
The authoritative assessment of how close LightCraft is to Lightroom. The row-by-row checklist is
[parity-checklist.md](parity-checklist.md); the ranked work list is [gaps.md](gaps.md); deep areas
@@ -67,7 +67,7 @@ from the checklist sections and the deep-dive documents.
| Area | Weight | Breadth | Ready | Remaining | Notes |
|---|---:|---:|---:|---:|---|
| Import and library (import, folders, albums, smart albums, keywords, metadata, search, faces) | 15% | 90% | 80% | 25–45 h | checklist A–E 83–92%; robust journal; 85k-photo libraries |
| RAW decoding and camera coverage | 15% | 81% | 76% | 120–220 h | [raw-parity.md](raw-parity.md), measured model by model: 84% of photographers' cameras decode (use-weighted), × 0.9 for per-body bugs; CR3 variants, compressed ORF, HE NEF |
| RAW decoding and camera coverage | 15% | 81% | 77% | 120–220 h | [raw-parity.md](raw-parity.md), measured model by model: 85% of photographers' cameras decode (use-weighted), × 0.9 for per-body bugs; CR3 variants, compressed ORF, HE NEF |
| Colour, camera profiles, render fidelity | 10% | 65% | 35% | 80–150 h | 4 bundled profiles vs Adobe's 1,500; per-file fits median ΔE ~5 vs the camera JPEG, ~10% far off; no fidelity suite ([raw-parity.md](raw-parity.md#colour)) |
| Global develop adjustments (light, colour, curves, grading, effects, detail) | 15% | 93% | 70% | 30–60 h | checklist F 91.7%; character tuned by eye |
| Optics, lens profiles, crop and geometry | 6% | 80% | 50% | 40–80 h | no lens database; crop / Upright complete |
@@ -129,7 +129,7 @@ valued from the model-by-model measurement in [raw-parity.md](raw-parity.md):
| Dimension | Weight | Ready |
|---|---:|---:|
| Features: the other 11 areas, weighted depth from [Features](#features) | 45% | 60.9% |
| RAW decoding and camera coverage | 9% | 76% (84% use-weighted × 0.9) |
| RAW decoding and camera coverage | 9% | 77% (85% use-weighted × 0.9) |
| Camera colour and default rendering | 6% | 35% |
| UI/UX fidelity | 8% | 70% |
| File formats (non-raw) | 6% | 70% |
@@ -139,7 +139,7 @@ valued from the model-by-model measurement in [raw-parity.md](raw-parity.md):
| Stability | 8% | 60% |
| Platforms | 4% | 60% |
| Ecosystem / plug-ins | 2% | 15% |
| **Weighted sum** | 100% | **60.6% ≈ 61%** (range 56–66%) |
| **Weighted sum** | 100% | **60.7% ≈ 61%** (range 56–66%) |
Mainstream comes out lower than full: its scope is the raw-develop core, where LightCraft is weakest
(camera colour, CR3 coverage), and its discounts are multiplicative, while the full sum is lifted by
@@ -171,18 +171,18 @@ than the user's own.
|---|---:|---:|
| Import and library | 18% | 80% |
| Cull: views, compare, zoom, ratings | 12% | 70% |
| Raw decoding for their camera | 27% | 84% (measured use-weighted share whose camera fully works, [raw-parity.md](raw-parity.md#by-use-estimated)) |
| Raw decoding for their camera | 27% | 85% (measured use-weighted share whose camera fully works, [raw-parity.md](raw-parity.md#by-use-estimated)) |
| Global develop adjustments | 15% | 70% |
| Crop, geometry, lens corrections | 6% | 50% |
| Masking (manual, subject / sky; no generative) | 8% | 45% |
| Heal / remove (no generative), denoise | 5% | 40% |
| Presets, copy / paste / sync | 5% | 85% |
| Export | 4% | 75% |
| **Weighted depth** | 100% | **71.8%** |
| **Weighted depth** | 100% | **72.1%** |
Colour fidelity is a written discount, **×0.85**: most raws start near the camera's own look (median
ΔE ~5), about 10% far off (ΔE ~18), none calibrated to Adobe Standard, so a working photographer
corrects colour by hand (33 open colour issues). 71.8% × 0.804 × 0.85 = **~49%** (range 44–54%).
corrects colour by hand (33 open colour issues). 72.1% × 0.804 × 0.85 = **~49%** (range 44–54%).
### Essentials user: ~64%
@@ -199,11 +199,11 @@ basic sliders, crop, apply a preset, undo, export JPEGs.
| Crop and straighten | 10% | 80% |
| Presets and profiles | 8% | 80% |
| Undo and history | 5% | 90% |
| Their camera's raws: decode × default look | 10% | 63% (84% whose camera fully works × colour factor 0.75) |
| Their camera's raws: decode × default look | 10% | 64% (85% whose camera fully works × colour factor 0.75) |
| Export JPEG | 10% | 85% |
| **Weighted depth** | 100% | **77.4%** |
| **Weighted depth** | 100% | **77.5%** |
77.4% × 0.830 = **~64%** (range 59–69%).
77.5% × 0.830 = **~64%** (range 59–69%).
### User evidence (GitHub issues, excluding the four maintainers)
@@ -297,6 +297,7 @@ P2 items 12–25 h; look tuning, performance, packaging, hardening 25–45 h.
| Date | Change | Summary |
|---|---|---|
| 2026-10-11 | minor | EOS R5 Mark II CR3 verified (raw-parity.md): use-weighted share whose camera decodes 84% → 85%, RAW decoding 76% → 77%; full 60.6% → 60.7%, mainstream depth 71.8% → 72.1%, essentials depth 77.4% → 77.5%; the rounded numbers (~61%, ~49%, ~64%) are unchanged |
| 2026-10-10 | minor | RAW measured model by model (raw-parity.md): RAW decoding (76%) and colour (35%) are explicit rows of the full sum (59% → 61%); mainstream uses the use-weighted 84% plus a ×0.85 colour discount (51% → 49%); essentials uses 84% × colour 0.75 (63% → 64%); beta ~14 points |
| 2026-10-10 | minor | Full number restored to an additive weighted sum over the dimensions (~59%; method aligned with the standard, no new evidence); hours to ~95% for each of the three audiences; beta distance ~16 points |
| 2026-10-10 | minor | Added mainstream practitioner (~51%) and essentials user (~63%) numbers; full ready re-derived from written weights × discounts (55% → 46%); user-issue evidence; beta hours 340–600 |
docs/whats-new.md
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@@ -8,6 +8,11 @@
library open now stays, and LightCraft says "This is a Lightroom catalog, not a LightCraft library" and offers
**Import Lightroom Catalog…** with that catalog, or Cancel. `lightcraft-cli --library` refuses those folders too.
### Canon EOS R5 Mark II
- Canon EOS R5 Mark II C-RAW files that opened as "preview only" (more than half of them, depending on the
scene) now develop from their sensor data with every editing tool, like the camera's other raws. Photos
imported earlier switch over with Photo ▸ Reload from Disk.
## 2026-10-10
### Dialogs fit the window