Depth of Field P. 3

Although it's true that depth of field gets shallower with smaller sensors, there's a bigger factor involved and that's crop factor. It is basically a smaller sense that creates a more zoomed in image given the identical focal length. Another confusing topic is lens equivalency. In the photography world - 35mm film was the standard that pretty much everyone uses. People got so used to what 50mm lens looked like on 35mm film. When digital came along with smaller sensors they introduced this idea of lens equivalency where you take the crop factor and multiply it with the lens focal length. I would say a camera with an APS-C sensor which has a crop factor of 1.6. While shooting with a 50mm would give the same angle of view of an 80mm lens on a full frame sensor.

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