what does this ratio meant for?
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I bought a Nikon P80. I know that it's Lens is ranging from 28 - 486 mm (Wide angelled to Telescopic).
But there is a Specification in the Bottom of my camera, it says:
4.7-84.2 mm 1:2.8-4.5
What does that mean? I undersatnd F stop value is mentioned as 2.8 to 4.5 ,but not clear. Can someone explain me what does that ratio meant for?
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