09-30-2009, 06:25 AM
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Ninja Moderator
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Join Date: Dec 2006
Location: Oxford, UK
Posts: 9,827
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Do you mean "aperture" rather than "focus"? Either way, the important thing is not the number on its own but what it means in terms of the distance to the subjects and the characteristics of the lens.
Wulf
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Wulf Forrester-Barker << Sites: blog / flickr >>
Gear: Nikon D40, Nikon AFS 18-55mm f/3.5 - 5.6G, Nikon Series E 50mm f/1.8, Nikon AF 70-300mm f/4-5.6G, Vivitar 90mm f/2.5 macro, Raynox DCR-250, Lensbaby 2.0k, SB600
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