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Canon® EOS Rebel XSi/450D Guide to Digital SLR Photography by David D. Busch

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What Lenses Can Do for You

A saner approach to expanding your lens collection is to consider what each of your options can do for you and then choosing the type of lens that will really boost your creative opportunities. Here’s a general guide to the sort of capabilities you can gain by adding a lens to your repertoire.

  • Wider perspective. Your 18-55mm f/3.5-5.6 or 17-85mm f/4-5.6 lens has served you well for moderate wide-angle shots. Now you find your back is up against a wall, and you can’t take a step backward to take in more subject matter. Perhaps you’re standing on the rim of the Grand Canyon, and you want to take in as much of the breathtaking view as you can. You might find yourself just behind the baseline at a high school basketball ...

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