Been shooting with a Redcat 51 with a Nikon D810 with a light pollution clip-in filter and love it. I now want to start a bit of narrowband with a dual band filter.
1, Rather than screw it inside of the Redcat I would prefer to fit a filter draw but will I still be able to get focus as this will add 21mm?
2, Also, if I focus without the filter in the draw and then add it, will I still have correct focus? I have heard it can be harder to focus with a filter fitted.
Any help most welcome.