BIGGER APERTURE = more brightness in screen?

Started Jul 14, 2012 | Discussions thread
David VL
Junior MemberPosts: 41Gear list
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Vignetting
In reply to nikonfreak, Jul 23, 2012

simple, the answer is vignetting.

usually when a lens is opened at its maximum aperture, vignetting occurs. Depending on the glass it self, shietty ones usually have up to -2ev darkening in the corners and up to -1ev in the centre. Its nikon glass were talking, not a leica, so you must assume that vignetting will occur, even on superb optics like 85 1.4G and such.

people say "stop down" all the time, that actually means closing down your aperture to get the maximum performance of your lens. typical "sweet spot" for a lens is between F4 up until F8 where sharpness, clarity, contrast,etc really shows.

So, if you are going to use the maximum aperture, you have to consider the side effects too.

hope this helps.

 David VL's gear list:David VL's gear list
Olympus E-5 Olympus PEN E-P3 Olympus Zuiko Digital ED 50mm 1:2.0 Macro Olympus Zuiko Digital ED 12-60mm 1:2.8-4.0 SWD Olympus Zuiko Digital ED 50-200mm 1:2.8-3.5 SWD +3 more
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