I will leave this one to the techies as I'd love to know first, the minimum IC for 6.5X8.5 and also what an equivalent lens to 35mm of say, 115-120mm would be on the format? Is there a way I can calculate a rough estimate of any lens length for 6.5X8.5that would be the equivalent to a lens put on a 35mm camera?
Thanks all!
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