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EF vs EF-S

Started Mar 1, 2016 | Questions thread
Richard Butler
Richard Butler dpreview Admin • Posts: 2,911
Re: EF vs EF-S

MasonHoy wrote:

I have always been taught to account for crop factor on a crop sensor when using a lens not designed specifically for the crop.

The crop factor is always present, regardless of what format the lens was designed for. Essentially all lenses list their actual focal length on them. The crop factor tells you which lens would give the same field-of-view on a 135 format ('full frame') camera.

So the 50mm on your camera will give the same field-of-view as an 80mm lens would on full frame.

Richard - dpreview.com

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