Originally posted by yozza How would you compare the 43 to the 50, or if anyone has tried the 55?
I've tried all these. Here's my thoughts. First,
the standard is the FA77. It is the alpha, the omega, and everything in between.
I had the 43 and found it....well, I had a thread about that. Let's put it this way: I got a lot of people riled up because my opinion, in a nutshell, is that it's garbage on the the K-1. The field curvature is terrible on that lens so you have to be
dead on or you'll see horrible distortion--like, you can watch the image warp in the viewfinder like it were a UWA. The curvature also means that you don't get strong focus because the focal plane only intersects part of the image. Bleagh.
I've used the FA50 f/1.7 and it was my go-to normal lens after I bailed on the FA43. It's acceptable and can do some nice things but the rendering is rather pedestrian if you're above f/3.2. The f/1.4 variant is not nearly as sharp and is a bit soft at all apertures. Just lacks that special detail. Both are adequate but just feel so...ordinary.
So now I have the DA*55. It's basically a shorter version of the FA77 with slightly less interesting bokeh. It matches the 77 in resolution and sharpness. It's marvelous!!
Here's the 55 in action:
Meanwhile, here's the 77 doing its thing: