3X is about as much as I'll tolerate for 5x7 B&W sheet film. Mostly stopped using B&W roll film for this reason. Only 120 roll film camera around these days the 6x9 Arca Swiss + lenses and etc and that is a not often used camera. The image quality is just not there. Image quality is far beyond "Crisp" or "Sharp" there are a good number of factors far beyond crisp and sharp that sheet film will produce that simply does not happen on roll film.
Bernice
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