I was told about RawTherapee by some fellow film photographers. I’ve been a film photographer for years and years and have typically used other tools in my workflow for negative processing, but colour film has been a challenge so I wanted to give RT a try.Especially since the newly introduced ability to process a negative scan.
I use Linux Mint and have version 5.7 installed (Version: 5.7, Branch: releases, Commit: f335efe). I add my raw negative scan (note this is a true raw scan, without inversion) that I captured using VueScan and Epson Perfection V550. However, when I go to the “Raw” toolset where I gather the new film negative tool is positioned, the entire panel is greyed out. I can’t select anything.
A fellow user said it was because my scan was a TIF scan, so I changed the file extension to DNG. But same issue. See screenshots.
How do I enable the film negative tool please?