So when using OSC, I've noticed that with my lenses (and even my EdgeHD), best focus for R, G, and B channels seems to be slightly different. Obviously, unlike Mono, I can't adjust for each channel separately.
How do you guys deal with it?
I've recently added in NINA a feature that makes it use the debayered luminance as (R+G+B)/3 value for each pixel instead of the Bayered image, which should make a good difference for autofocus (using green pixels less). Now I'm wondering whether it would make sense to be able to choose coefficients of channels to focus on, for example to focus on Blue channel when imaging the Pleiades, and on Red channel when imaging the Eagle nebula.