[cresskh (Cress)]

I've been hearing this awhile back, that you are able to get APO or near-APO performance when you're doing imaging with an achromat scope coupled with mono camera + LRGB filters.

Of course, you will need to refocus each time you're imaging in different LRGB filter.

So the question is, will this work? After you focus perfectly in each LRGB filter and combine into single color image, is the resultant image CA free?