Film catalogue
Slots (assigned automatically) and texture
Each film can also carry grain and soft glow, each at three levels: weak, medium and strong. They are written into the firmware with the film and have no camera menu; to change them, build and flash again. When enabled, the in-camera name carries a tag, for example Portra 400 HDF+1 (G is grain,HDF is soft glow, and the number is the level). When the slot name has no room, the tag is shortened to G2 H1, and if that is still too long the film name is cut short.
Grain uses the camera’s own grain processing. Soft glow is highlight diffusion written by this site: bright areas spread outward. It applies to JPEG only and leaves RAW alone; the more highlights, the longer each shot takes to process. Neither is visible in live view; both appear only in the photo. Both have only had offline verification and first test shots on one GR IIIx; neither the effect nor the stability is fully confirmed, so keep the official firmware.
The five slots are replaced together, so you must pick exactly five. The page assigns the slots, keeping built-in films in their home slot where it can, and the name and icon shown in the camera change with the film. Standard, the monochrome modes, Positive Film and Negative Film are unaffected, and parameters such as hue can still be adjusted in the camera.
A custom LUT is an sRGB .cube file made for ordinary photos; the page fits it on this device into the matrices and tone curves the camera can express. The camera has no 3D LUT, so only the overall color and tone can be reproduced, not adjustments aimed at a single color. “Predicted difference” is a model prediction, not a result from real photos. This site has not tested this feature on any camera.
The built-in film data comes from gr3-film-mods (idontknownihil), fitted from spektrafilm (Andrea Volpato) and used under CC BY-SA 4.0. Film, camera and brand names are trademarks of their owners, used only to say what was fitted; this site is not affiliated with them.
