35/1.8 as a zoom lens?

Started Sep 14, 2012 | Discussions thread
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Woland65 OP Regular Member • Posts: 425
Re: 35/1.8 as a zoom lens?

You are right that it is two stops of light, but your calculation is wrong. f1.8 + 2 stops is roughly equal to f3.6. (It is an exponential scale.)

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