So the Kowa Genesis is better than the Victory T FL 32s at the edges?
The Genesis has a somewhat odd distortion profile that has been discussed by many. It attempt to correct distortion and curvature across the field, whereas the Zeiss has a more “classic” profile with more pincushion and edge blur.
BUT the Genesis distortion correction creates a weird phenomenon where it has a ring of reduced sharpness about 2/3 of the way out as it transitions from slight pincushion in the middle to straighter lines at the edge. Outside of the “blurry ring” it actually gets a bit sharper. This ironically produces that situation where it has both a smaller “true” sweet spot while also having shaper edges than a more classic design like the Zeiss. The transition of the distortion also creates a bit of “rolling ball” effect as objects become somewhat compressed at the edges.
This isn’t a criticism per se, just a different way of doing things. The sweet spot doesn’t “feel” small when you are focused on stuff in the middle, but if you start examining the off axis distortion it’s fairly obvious. On the plus side it has phenomenal color neutrality and CA control, and it is very bright and clear and very comfortable to hold.