100-500 max aperture at 400mm communicated by Canon

ahsanford

Particular Member
Aug 16, 2012
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A number of you were asking about this, so here you go:


Depending on whether you use 1/2 or 1/3 stop increments, there are two different answers. But it can be f/5.6 @ 400mm if you want it to be.

- A
 
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