Response to out of focus film

Jorge, these are comments I usually do not respond to, since it is absolutely 101 knowledge. Difraction is a physical phenomenon and everyone going through High School has learned about this. Believe me, your Hasselblad has it too, otherwise Zeiss would have to find a way to eliminate the laws of physics. There are sufficient comments about Hasselblad types of backs and the tension of the film. Check it. Zeiss published extensively on it, also many articles commented on this. In the past years Zeiss ran extensive tests on this. The lovely Zeiss lenses simply do not reach their optimum resolution due to this and Zeiss definitly sees a huge problem here. I do not need to repeat this. It all leads to the same conclusion: A camera with rollers changing the film path does have problems with sharpness. The TMax: I am really getting tired to comment on this. Again, the journals are full of comparisons. The grain of a TMAX is not very distinct, but fuzzy. You and I cannot change this observation. Simply check the following page http://hamburg.germany.com/laborparnter/html/colorfoto_11.htm It is a reprint of an article in Color Foto 5/2000. You can either optimize a film for fine grain or high acutance, or find a good balance for both. TMAX has fine grain, which is fuzzy. Also the resolution of TMAX is not teribly high, Color Foto measured around 110 lines at a contrast 1:1000, which means that in a standard contrast you would typically get 30-40 lines.

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