EXCERPT page containing first few paragraphs. 2020-07-10 21:25:59
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This aperture series from f/1.9 through f/5.6 evaluates performance at distance of the Hasselblad XCD 80mm f/1.9. Regrettably, f/8 could not be obtained due to the unreliability of the Hasselblad X1D II with exposures of 16 seconds or longer.
A moderate left/right symmetry issue is also shown. Is it a lens mount planarity issue, or the lens? Because the XCD 35-75mm also shows a symmetry issue at 75mm.
Update: all evidence points to a lens mount/sensor parallelism issue; see the comments in View Over Alabama Hills Formations, Last Light on High Peaks. So I give the lens a “pass”.
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