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LR-IMP-CAMERA-COVERAGE: Leica Q3 verified by a recorded check of 38 private DNGs (236 models verified)

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All 38 files decode from sensor data and develop at full size (9520x6336 and
6336x9520) without error; mean CIE76 dE to the camera JPEG is 6.3-13.9 at 400 px.
The files are not committed and the evidence entry carries no path. Leica is now
14 verified / 47 unverified, the Leica bucket on a verified body 5% -> 21%; the
weighted shares (85% decode, 42% on a verified body) do not move.

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
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Alfons HoogervorstandClaude Sonnet 5.5 committed 2026-10-11 16:54:06 +02:00
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ROADMAP.md
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**Stage: alpha** · next: beta, ~14 points and ~340–600 h away
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (EOS R5 Mark II CR3 verified; RAW decoding 77%) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (Leica Q3 verified, 236 models; EOS R5 Mark II CR3 verified; RAW decoding 77%) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
One-page summary of how close LightCraft is to Adobe Lightroom. Agents: read this, then pick work
from [docs/gaps.md](docs/gaps.md). The full assessment, method and evidence are in
@@ -114,6 +114,8 @@ Ranked toward beta; detail in [docs/roadmap.md](docs/roadmap.md), gaps in [docs/
## Progress log
- 2026-10-11: Leica Q3 verified by a recorded check of 38 private DNGs (all decode and develop at full
size; mean ΔE to the camera JPEG 6.3–13.9). 236 models verified; headline numbers unchanged.
- 2026-10-11: Canon EOS R5 Mark II C-RAW decodes from sensor data (57% of its files opened as a
preview): the CRX QP map's first-symbol literal and limited-length escape; four CC0 R5 Mark II files
pinned, the QP maps of 33,665 private C-RAW files decode exactly ([cr3.md](docs/cr3.md)). 235 models
docs/gaps.md
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# 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; gaps 2 and 10: EOS R5 Mark II CR3 verified) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-11 · **Change:** minor (gap 10: Leica Q3 verified, 236 models; 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
@@ -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**: 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) |
| 10 B | **Per-model verification thin, plus cheap per-body decode fixes**: 236 of 1,446 Adobe models verified (16%), ~42% of photographers on a verified body; Nikon 5 bodies verified, Canon 12, Leica 14 (the Q3 by a recorded check of 38 private DNGs). 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) |
@@ -72,6 +72,7 @@ Beta-blocking gaps (B) total **~230–430 h**; with the stability and platform w
| Date | Change | Summary |
|---|---|---|
| 2026-10-11 | minor | Gap 10 shrinks: Leica Q3 verified by a recorded check of 38 private DNGs (236 models verified; Leica 14); gap not closed |
| 2026-10-11 | minor | Reviewed against main after 0.6.0: CR3 entry names the CRX variants `crx.rs` still refuses and the R7 / R6 Mark II C-RAW state (decoding, not verified, so the measured numbers don't move); CI and Windows / Linux entries note the riscv64 release build (#844); R7 fix added to Closed recently. Panel docking (UI.9, #869) closes no listed gap |
| 2026-10-11 | minor | Camera colour entry: raws with a black-and-white camera JPEG take its tone curve (#577); gap not closed |
| 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 |
docs/raw-parity.md
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# RAW parity: cameras, formats, demosaic, colour and lens profiles
> **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)
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (Leica Q3 verified by a recorded check of 38 private DNGs; 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
@@ -14,11 +14,11 @@ 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 | **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) |
| Decoded from sensor data and **verified** on a real file | **236** (16%) | measured: [raw/evidence.tsv](raw/evidence.tsv) |
| Decoder path should handle it, **unverified** | **941** (65%) | measured from the format rules (631 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 | 82 / 640 / 24 / 8 of 754 | measured |
| Models added since 2017 (Camera Raw 10+): verified / unverified / preview / unsupported | 83 / 639 / 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`) |
@@ -46,7 +46,9 @@ committed table is stale.
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
there, 178 files from 118 bodies), and a recorded check of 38 private Leica Q3 DNGs (2026-10-11: every file
decoded and developed at full size, 9520 × 6336 and 6336 × 9520; mean CIE76 ΔE to the camera JPEG 6.3–13.9
at 400 px; the files are not committed). Bulk-check body lists were matched to Adobe names through the
raw.pixls.us folder names. Checks without a body list (≈ 60 NEFs, 35 CR2 bodies for the CFA layout)
are not counted as verified.
- **Usage weights** ([raw/usage-weights.tsv](raw/usage-weights.tsv)): maker buckets from 2025 market
@@ -72,7 +74,7 @@ committed table is stale.
| Fujifilm | 97 | 16 | 55 | 26 | 0 | pre-X FinePix RAF without a raw IFD (estimated split) |
| Google | 88 | 1 | 87 | 0 | 0 | — |
| Olympus | 71 | 3 | 9 | 59 | 0 | **compressed ORF** |
| Leica | 61 | 13 | 48 | 0 | 0 | — |
| Leica | 61 | 14 | 47 | 0 | 0 | — |
| Xiaomi, Oppo, LG, Huawei, OnePlus, Motorola, Nokia | 139 | 0 | 139 | 0 | 0 | — (DNG) |
| Pentax / Ricoh | 60 | 4 | 56 | 0 | 0 | — |
| Hasselblad | 34 | 0 | 2 | 32 | 0 | Hasselblad-compressed 3FR / FFF |
@@ -81,7 +83,7 @@ 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** | **235 (16%)** | **942 (65%)** | **233 (16%)** | **36 (2%)** | |
| **All** | **1,446** | **236 (16%)** | **941 (65%)** | **233 (16%)** | **36 (2%)** | |
## By use (estimated)
@@ -95,7 +97,7 @@ committed table is stale.
| OM / Olympus | 3% | 3% | 1% | compressed ORF |
| Phones | 3% | 93% | 1% | DNG |
| Pentax / Ricoh | 1.5% | 94% | 14% | |
| Leica | 1% | 95% | 5% | |
| Leica | 1% | 96% | 21% | the Q3 verified |
| DJI | 1% | 95% | 0% | |
| Medium format and others | 0.5% | 23% | 0% | IIQ, 3FR, X3F |
| **Weighted** | 100% | **85%** | **42%** | |
@@ -137,7 +139,7 @@ checked, and Canon, the largest bucket, is the weakest of the big four.
| PEF / DNG | Pentax pixel shift | ⬜ | frames not combined |
| SRW | uncompressed, 12-bit packed | ✅ | EX1 corpus; NX10, NX20 |
| SRW | compressed 32770 / 32772 / 32773 | ⬜ | refused |
| DNG | uncompressed, LJ92, lossy JPEG / Smart Preview, Deflate incl. float, LinearRaw, tiles / strips, row / column interleave | ✅ | 6 corpus DNGs; 4 ILCE-6400 JXL DNGs |
| DNG | uncompressed, LJ92, lossy JPEG / Smart Preview, Deflate incl. float, LinearRaw, tiles / strips, row / column interleave | ✅ | 6 corpus DNGs; 4 ILCE-6400 JXL DNGs; 38 Leica Q3 DNGs (lossless JPEG, 14-bit, private check) |
| DNG | JPEG XL (DNG 1.7, lossless and lossy) | ✅ | synthetic bit-exact; real lossless and lossy files |
| DNG | Apple ProRAW (incl. semantic mattes) | ✅ | iPhone 12 Pro corpus; ProfileGainTableMap read but off (ΔE00 19 against Lightroom with it on) |
| DNG | phone DNGs (Pixel, Galaxy, Xiaomi…) | 🟡 | Pixel 2 XL only; white-level pile-up fix #548 |
@@ -266,6 +268,7 @@ Beyond decoding:
| Date | Change | Summary |
|---|---|---|
| 2026-10-11 | minor | Leica Q3 verified by a recorded check of 38 private DNGs (no decode failure; mean ΔE to the camera JPEG 6.3–13.9): 236 verified, 941 unverified, Leica bucket on a verified body 5% → 21%, weighted shares unchanged |
| 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 |
docs/raw/coverage.tsv
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@@ -622,7 +622,7 @@ Leica M11-P DNG 2023 unverified DNG decoder (uncompressed, LJ92, lossy, Deflate,
Leica Q (Typ 116) DNG 2015 unverified DNG decoder (uncompressed, LJ92, lossy, Deflate, JPEG XL, LinearRaw)
Leica Q2 DNG 2018 unverified DNG decoder (uncompressed, LJ92, lossy, Deflate, JPEG XL, LinearRaw)
Leica Q2 Monochrom DNG 2020 unverified DNG decoder (uncompressed, LJ92, lossy, Deflate, JPEG XL, LinearRaw)
Leica Q3 DNG 2022 unverified DNG decoder (uncompressed, LJ92, lossy, Deflate, JPEG XL, LinearRaw)
Leica Q3 DNG 2022 verified recorded check 2026-10-11: 38 private Q3 DNGs (landscape and portrait) decoded from sensor data and developed at full size without error, mean CIE76 dE to the camera JPEG 6.3-13.9 at 400 px (not committed; docs/raw-parity.md)
Leica Q3 43 DNG 2023 unverified DNG decoder (uncompressed, LJ92, lossy, Deflate, JPEG XL, LinearRaw)
Leica Q3 Monochrom DNG 2025 unverified DNG decoder (uncompressed, LJ92, lossy, Deflate, JPEG XL, LinearRaw)
Leica S2 DNG 2010 unverified DNG decoder (uncompressed, LJ92, lossy, Deflate, JPEG XL, LinearRaw)
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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@@ -40,6 +40,7 @@ Leica D-Lux 6 verified PR #215: 178 raw.pixls.us files from 118 Panasonic / Leic
Leica D-Lux 7 verified PR #215: 178 raw.pixls.us files from 118 Panasonic / Leica bodies, every RW2 format
Leica Digilux 2 verified PR #215: raw.pixls.us bulk check of every RW2 / RWL / RAW body
Leica Digilux 3 verified PR #215: 178 raw.pixls.us files from 118 Panasonic / Leica bodies, every RW2 format
Leica Q3 verified recorded check 2026-10-11: 38 private Q3 DNGs (landscape and portrait) decoded from sensor data and developed at full size without error, mean CIE76 dE to the camera JPEG 6.3-13.9 at 400 px (not committed; docs/raw-parity.md)
Leica V-LUX (Typ 114) verified PR #215: 178 raw.pixls.us files from 118 Panasonic / Leica bodies, every RW2 format
Leica V-LUX 1 verified PR #215: 178 raw.pixls.us files from 118 Panasonic / Leica bodies, every RW2 format
Leica V-LUX 4 verified PR #215: 178 raw.pixls.us files from 118 Panasonic / Leica bodies, every RW2 format
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