EXCERPT page containing first few paragraphs. 2021-06-24 15:42:05
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MTF is shown below at f/3.5 and f/8 for both infinity focus and at 1:5 (0.8 meters).
sagittal slit orientation drawn with continuous line and tangential with dashed. White light. Spatial frequencies 10, 20 and 40 lp/mm.
Wide open at f/3.2, sharpness is outstanding is at very high levels across the field. Performance might bump up at f/4 and f/5.6, but Hasselblad does not provide those apertures. While outstandingly consistent across the field, peak MTF values fall well short of the Zeiss Otus 85mm f/1.4 APO-Planar.
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