Hasselblad F-Distagon CFi 30mm f/3.5; Edge and corner Sharpness? Hello every body, Thanks in advance for sharing your input. What to expect in 22" square print, corners and edges, from Hasselblad Fisheye? It's a 10.3X magnification. Recently, was testing a clean sample of this lens. Found that the edges(leave alone corners), are not as the lens was reputed as a super sharp corner to corner! It's not! Sharpness at 10x starts to suffer in the last 20% or so each side. Could it be the scale 10X enlargement? Or a defect in the lens? My prints are optical darkroom. Target was more than 77 Yards away(230 feet), parallel line of buildings. Center is super sharp. Thanks for sharing your experience.