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David Busch’s Canon® EOS M Guide to Digital Photography by Lee Sheldon

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Using Wide-Angle and Wide-Zoom Lenses

To use wide-angle prime lenses and wide zooms, you need to understand how they affect your photography. Here’s a quick summary of the things you need to know.

Image More depth-of-field. Practically speaking, wide-angle lenses offer more depth-of-field at a particular subject distance and aperture. (But see the sidebar below for an important note.) You’ll find that helpful when you want to maximize sharpness of a large zone, but not very useful when you’d rather isolate your subject using selective focus (telephoto lenses are better for that).

Stepping back. Wide-angle lenses have the effect of making it seem that ...

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