Photographer/writer Shawn M. Tomlinson explains the reasons why you need a second DSLR camera, and how to choose one. "The point is that, as a photographer, your DSLR is your main instrument or tool," Tomlinson writes. "You need to be so familiar with it that it is automatic for you to get it to do what you want." He covers the basics of buying and working with a second DSLR, illustrating points with many photos. In part two,'The Workhorse DSLR: Revisiting the Canon EOS 20D," he explains in detail the joys of this great camera. "Still, it all comes back to the 20D. It was and is a workhorse of a DSLR, mostly metal and rugged, and it produces spectacular images. I use mine frequently. Sure, it has a little more grain than my newer DSLRs, but grain is not a bad thing. The colors are fantastic, as are those produced by most Canon cameras." The author covers the basics of buying and working with the Canon EOS 20D, illustrating points with many photos from that DSLR.