The film and paper simulation
Your photo goes through the two stages a real print goes through. First the film, whose three colour layers respond to light the way its measured curves say. Then the colour paper, with curves of its own. That is why every film keeps its own colour and contrast, and why the result reads as a print and not as a filter.
- Measured
- curves from the makers' own data sheets
- Paper
- RA-4 colour paper, Endura or Crystal Archive
- Grain
- dye clouds at the film's size, not noise on top


Every photo on this page is made by the simulation from published measurement data. The curves are measured profiles by Andrea Volpato, from the open spektrafilm project. They are used unmodified, under CC BY-SA 4.0, and the credits page carries the full list.















