Sonnar Brian Product of the Fifties Staff member Local time 12:18 PM Joined Jan 12, 2004 Messages 19,778 View My Gallery Mar 5, 2023 #21 This lens is undercorrected for spherical aberration. Has a slight focus shift towards the camera as you stop down. Slight- but there.
This lens is undercorrected for spherical aberration. Has a slight focus shift towards the camera as you stop down. Slight- but there.
Sonnar Brian Product of the Fifties Staff member Local time 12:18 PM Joined Jan 12, 2004 Messages 19,778 View My Gallery Mar 28, 2024 #22 90/1.5 Mitakon, wide-open on the Nikon Z5.