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KellyZ

Levant, US
103 posts

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KellyZ Registered since 01st Mar 2013
Fri 05-Apr-13 03:14 PM

I have the nikon kit lenses: 18-55 and 55-200 which have two F numbers of F4 and F5.6.

What exactly does this mean? And at what point does it change from f to 5.6?

Thanks.

G