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Wednesday, May 30, 2018

What is Focal Length in Photography?

In photography, we use focal length as a primary descriptor of lenses. It’s the measure (in millimeters) of the distance between the rear nodal point and the focal point of the lens, while the lens is focused to infinity. Yep, that’s quite a mouthful, so let’s break it down.

from How-To Geek https://ift.tt/2IX9t6E

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