Canon EOS 5D Mark IIThe original 5D was the first "affordable" full-frame DSLR, and its successor, the 5D Mark II, was the first full-frame DSLR to offer video capability. The Mark II was quickly adopted by many video shooters as well as still photographers.
As a still camera, the 5D Mark II offers a 21.1-megapixel, full-frame CMOS sensor with even better image quality than that of Canon's flagship EOS-1Ds Mark III (thanks in large part to the DIGIC 4 image processor introduced a few months earlier in the 50D, plus technological improvements in the sensor). It can shoot those huge images at 3.9 fps and, while not as rugged as the EOS-1D series, features a stainless-steel chassis with magnesium-alloy covers and a shutter tested to 150,000 cycles.
Canon EOS 7DCanon's top APS-C model, the 7D features two DIGIC 4 processors like the EOS-1D Mark IV, and even more pixels, with an 18-megapixel CMOS sensor. It can shoot those big images at up to 8 per second and, with what's probably the company's most versatile AF system, it's a fine action camera.
As one would expect of a mid-level EOS DSLR, the 7D features a rugged, yet lightweight magnesium-alloy chassis with good sealing against dust and moisture.
Canon EOS 60D
The 60D inherits the new 63-zone, dual-layer metering system introduced in the 7D and the 9-point all-cross-type AF system of the 50D (but with a new AI Servo AF II algorithm for improved performance). The camera accepts the same interchangeable focusing screens as the 50D. The exposure-compensation range has been increased to +/-5 stops, a valuable improvement.