Lens Description

edited October 2013 Posted in » Nikon D3100 Forum
On the kit lens and probably any other lens they have the markings f/1:3.5-5.6G.
I understand the f/3.5-5.6G, but what does the "1:" signify?


  • edited October 2013
    Nothing to get hung up about. The f/1 is used largely as a matter of convention and makes the f/3.5 into a mathematical equation (for pure mathematicians only). Apertures are calculated using f/1 as a starting point and rise by 1 stop increments, although you will never see a camera lens with an aperture of f/1. The important bits for any photographer are the f/3.5 and the f/5.6.
    Best regards, PBked
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