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Canon EOS 40D Guide to Digital Photography by David D. Busch

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Final Steps

Your Canon EOS 40D is almost ready to fire up and shoot. You’ll need to select and mount a lens, adjust the viewfinder for your vision, and insert a Compact Flash card. Each of these steps is easy, and if you’ve used an EOS 30D or 20D (or one of the Digital Rebels), you already know exactly what to do. I’m going to provide a little extra detail for those of you who are new to the Canon or digital SLR worlds.

Mounting the Lens

As you’ll see, my recommended lens mounting procedure emphasizes protecting your equipment from accidental damage, and minimizing the intrusion of dust. If your 40D has no lens attached, select the lens you want to use and loosen (but do not remove) the rear lens cap. I generally place the lens I am planning ...

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