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Alex ChambersandClaude Opus 5.5
dc37496da4
Fitted with `lightcraft-cli calibrate` to 125 usable ILCE-7CR ARWs (of 131, September 2025 to September 2026, Standard creative style) and their in-camera JPEGs; aggregate colour statistics only. Without it, 8 of the 131 photos fail the fit gates and open with the neutral matrix (dE76 6-26 against the camera JPEG). On 26 withheld photos (profile fitted to the other 105) mean dE76 goes 4.07 -> 3.29 and both withheld rejections are accepted (26.0 -> 6.1, 6.2 -> 5.5); the 24 withheld photos whose own fit was accepted are about unchanged (12 improve, mean 3.06 -> 3.08, worst regression 1.8). With the final profile all 131 are accepted. The nine public raw.pixls.us ILCE-7CR codings stay accepted (mean 1.59 -> 1.99). A corpus test checks the public lossless-L sample's fit keeps exactly the built-in profile's matrix and table. Co-Authored-By: Claude Opus 5.5 <[email protected]>