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

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Is This Trip Really Necessary?

If you’re a photographic old-timer (say, with more than 10 years’ experience under your belt), you may feel that upgrades have become more frequent (and urgent) than they were in the relatively recent past. One of the most dramatic differences between film and digital single lens reflexes (other than the sensor) is that the rapid advances in digital technology have made upgrading a way of life for many. Even though it’s been half a decade since the first Digital Rebel made the dSLR practical and affordable for the masses, the digital SLR is still in its infancy, and subject to rapid change and improvements. Resolution has leaped from the 3.1MP of the EOS D30 (not 30D!), introduced in April, 2000, to the 10.1MP of ...

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