Lens -- SHARPNESS

Started Dec 15, 2011 | Discussions thread
neilgc
Contributing MemberPosts: 967
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Re: Lens -- SHARPNESS
In reply to nehru, Dec 16, 2011

nehru wrote:

Hi

I have four prime lenses that I want to use at a function.Light is not a problem as I have external flashes and other stuff .
Can you give me what value(s) or range of F I can get the sharpest Pics.
The lens I have are

Canon Lenses

EF 24mm f/1.4L II USM Autofocus Lens
EF 50mm f/1.8 II Autofocus Lens
EF 100mm f/2.8L Macro IS USM Lens
Telephoto EF 135mm f/2.0L USM Autofocus Lens

Thanks in advance

In general almost all lenses are at their sharpest at f5.6-f/8. From f/11 diffraction eats in. Slow lenses may need stopping down to f/8, but yours are all wide aperture lenses, so f5.6 will not be far off the best aperture.
Neil

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