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Claude
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These files carry no JPEG: their preview is an uncompressed 8-bit RGB IFD (1217 x 913 in the H4D-40 FFF, 218 x 218 in the CFV 3FR). The largest such image is handed on by embedded_preview as a small baseline TIFF, which lightcraft_codecs::decode reads, so 3FR / FFF show a preview in the grid and loupe before they are developed. No Orientation tag is written: the raw file's applies, as for JPEG previews without one. The FFF's 16-bit copy (with a TransferFunction of unknown meaning) is not used. decode_raw_preview applied a container-declared colour space by forcing the JPEG decoder on any owned preview; it now checks for JPEG bytes, so a wrapped TIFF (or a JPEG XL preview) goes to its own decoder. Checked on the CC0 H4D-40 FFF and CFV 3FR through embedded_preview_srgb: right colours, the 3FR upright through its Rotate90. Tests cover the wrap, the choice among RGB images, a short strip and truncated files. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01J2NDVXA8jQQWeJb4YVTb6b