"Equivalence" demonstrated: Canon 5D and Panasonic GX1

Started Apr 27, 2013 | Discussions thread
OP walkaround Senior Member • Posts: 2,551
Re: You are crushing my patience.

ljfinger wrote:
35mm was bad, but 110 was much worse!  2 1/4 x 2 1/4 (and other medium formats) was a good bit better.  Much less visible grain at the same ISO

But isn't this because of the relative enlargement sizes? The larger negative has to be blown up less for the typical print sizes. Film doesn't have one grain size. The larger grains in an ISO 100 film are actually ISO 400 or more. In the shadows on a fast exposure these larger grains are the only ones exposed, and so when you enlarge the 35mm negative 20 times you see it.

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