I mainly use Acros as a composition aid for seeing in black & white through the viewfinder while shooting.
After looking at the Acros images in Lightroom, I develop further in Silver Efex for black & white.
I use the 56 f/1.2 APD mostly for portraiture, although I have shot other types of images with it. I find the 56mm to be a bit heavy in the front with my XP2, but it replaced my long-loved Nikon 50mm f/1.2 when I made the switch to Fuji. I purchased the XP2 for use as a travel camera and rented about every lens Fuji makes (
test images here) to see what I wanted to keep in my travel bag. I do not like any of the zoom lenses or anything past the 56mm due to weight. I did like the reach of the 90mm, but the copy I rented had an annoying motor sound. I asked on the forum if anyone else had a 90mm with the noise, but no one responded. So I do not know if it was just the copy I rented, or if the 90mm has a louder focusing motor than the other Fuji lenses I use.
I assume you are referring to the OVF regarding visual blocking; the 56mm takes away about the same amount of view as the magnified rectangle box does in the lower right corner with just a tad more above. I prefer the EVF and have no difficulties at all composing with the 56mm. Here are portrait
images shot in a dark studio environment with the 56mm in manual focus mode. The lens was hunting because the studio was dimly lit and the walls and floor are painted grey. The 56mm APD is a beautiful lens, but focusing can be an issue in dim light, and I believe the non APD version is the same lens minus the APD filter.
Hope this helps!
Kind regards,
Darr