confused by the numbers & letters for lenses

Started Nov 18, 2012 | Questions thread
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happysnapper64 Senior Member • Posts: 5,343
Re: confused by the numbers & letters for lenses

Hi. The f/No's are a bit confusing to a beginner, & I only started 12 months ago so am still very much a beginner. The confusion arrises because the smaller the f/No, say f/3.5, the LARGER the aperture, & the larger the f/No, say f/5.6 the SMALLER the aperture. It does take a bit of getting used to, but you will. If I can grasp it, anyone can!!. The other poster has explained the rest very well. No doubt you will recieve more info to help you.

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lee uk.
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 happysnapper64's gear list:happysnapper64's gear list
Canon EOS 5D Mark II Canon EOS 7D Canon EF-S 15-85mm f/3.5-5.6 IS USM Canon EF-S 55-250mm f/4-5.6 IS Canon EF 100mm f/2.8 Macro USM +9 more
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