D50 large aperture issue

Started Sep 30, 2006 | Discussions thread
PvSinNL
Regular MemberPosts: 235
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Re: D50 large aperture issue
In reply to Zimbabwe, Sep 30, 2006

Zimbabwe wrote:

I have found that with my Nicon D50 18-55 mm lens
sharper images are when using large aperture.

This is due to a physical phenomenon called diffraction. In general, sharpness will decrease from apertures around F/11 onwards (the exact value depends on the pixel size and may vary for different cameras). So F/36 is definitely far from optimal! See this page for a detailed explanation:
http://www.cambridgeincolour.com/tutorials/diffraction-photography.htm

Paul
--
http://fotoalbum.dds.nl/paulfvs

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