I'm currently working on making my own motorized focus slide (will upload the steps/plans later). The idea is to basically be able to use many sized filters, but I'm leaning towards the 75mm Wratten type (unmounted square) because they will be able to be used in front of a camera lens as well as in the 2" image back on my scope, due to their size. Anyways, I was just wondering how good these are for RGB work??? It's either these or 55+mm mounted glass filters for this slide.
Thanks
Shawn
Thanks
Shawn
