Tint Parameter in EOS Is Reversed — Request to Match Film and Manufacturer Standards

I’ve noticed an ongoing inconsistency in how EOS handles the “Tint” parameter compared to long-established film and lighting practices. In most film-style profiles using Color Temperature and Tint, EOS maps full DMX values to magenta and low values (above zero) to green. This is inverted from how tint correction has traditionally worked both on set and in manufacturer implementations.

For decades, lighting correction has followed the plus/minus green convention: plus green adds green, minus green adds magenta. This standard aligns with how gels, color meters, and everyday gaffer terminology are used. Because EOS reverses this logic, I often need to edit every new profile—re-mapping Tint so low DMX equals minus green(-100), high DMX equals plus green (+100), and the midpoint represents “No Correction” or Zero.

If EOS profiles followed this expected mapping by default, it would save time, reduce confusion, and ensure consistency with both manufacturer intent and long-standing industry workflows. It would be a small but meaningful improvement for those of us working in film-centric environments.

  • As a lighting programmer in film & tv, I am regularly having to flip the tint values in a fixture profile. Maybe I'm missing something, but if the manufacturers' published DMX tables are processed by Carallon and passed on to ETC for the fixture libraries, it seems like this is on the manufacturers. At least flipping a tint value (or anything else) in the profile is pretty basic!