Despite being relatively old for a consumer dSLR, the 2-year-old Canon EOS 60D remains surprisingly popular -- as of this writing, the body currently ranks as the second best-selling dSLR on Amazon. It helps that the price dropped from $1,099 to as low as $599 over its tour of duty. So how do you follow up on that kind of popularity when you're trying to fill its shoes at that initially high manufacturer price? Canon's choice for its replacement, the EOS 70D, is to reinvent the autofocus system while bringing the rest of the camera up-to-date on current Canon standards.
