Could someone tell me if the Nikkor SW 90mm lenses (f/8 & f/4.5) would exhibit the same light fall off towards the edges when used at the same aperture (f/11 or smaller)? ie. is their any advantage to the 'faster' lens other than being brighter for focusing? I seem to remember reading a past post saying the 'faster' lens would have less fall off than the 'slower' lens at any given aperture and wondered is this is in fact true? Thanks!
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