Super Members Mattias Burling Posted February 23, 2017 Author Super Members Share Posted February 23, 2017 28 minutes ago, Nikkor said: 645 is the aps-c among medium format, 6x7 is the ideal format for printing (and larger than 645) ,etc... 6x6 and 6x9 are the odd sizes which waste film unless you really need the crop options, or use that weird ratio in some digital medium. Fieldcurvature in a macro lens? I doubt it. Its just our opinion Im not right nor wrong. Neither are you For me 645 is to save film. 6x9 is for nice prints. 6x6 is for Square and pocketable. 6x7 is the odd APS-C. Smaller than my prefered 6x9 but not small enough to save film like the 645. I dont think it being a macro have anything to do with it. Google "swirly bokeh". Its a very common characteristic in medium format lenses and many of my MF cameras has it. So does alot of full frame lenses like the helios. tupp 1 Quote Link to comment Share on other sites More sharing options...
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