I've been searching the forum and reading about my options to mount my Pentax DA prime lenses on my Fuji XE2 body. I know I'll need an adaptor that provides aperture control, because the DA lenses do not have an aperture ring. The lens I want to adapt is the Pentax DA 70 mm, but I'll have the Fuji kit zoom (18-55) mounted most of the time - switch to the 70 mm for a few shots, then switch back to zoom. Let's say I were to buy something like the Kipon - is it practical to mount the adapted lens for a few shots - or is it a big hassle involving a lot menu settings, which have to be reversed when going back to a native Fuji lens? For example, once I set the camera's menu to "shoot without lens" or whatever it's called, can I leave that setting "on" or do I have to turn it back off when I go back to the Fuji lens? Do I have to enter information like focal length or something every time I mount the Pentax lens? Once the lens is mounted, can I can set the aperture on the adapter, and leave the XE2 in Aperture Priority - or am I limited to full Manual, only? Is Focus Peaking reliable to manually focus the lens, or do I need to enable the split range-finder thingy (I believe my XE2 has that option)? Are there any other steps I will need to take every time I want to use the adapted lens that might make the process of switching back and forth between the adapted lens and the kit zoom slow and annoying?