Canon EOS 350D Rebel XT

3. Canon EF 70-300mm f/4-5.6 IS USM Lens for Canon EOS SLR Cameras

We chose this lens on the advice of my son, Landon. It allows us to take good, sharp photos of our birds.

Image Stabilization dramatically reduces image blur caused by camera shake. The EF 70-300mm f4-5.6 IS USM features Canon's latest 3-stop IS. This allows shutter speeds up to three stops slower than would otherwise be possible, with no perceptible increase in image blur. Photographers normally shooting a 300mm frame handheld at 1/500 second can obtain the equivalent result with a shutter speed of just 1/60 second, vastly extending options in low-light conditions.

Gyro sensors detect unwanted vibrations, triggering the corresponding movement of a correcting lens group perpendicular to the optical axis. This alters the light path, returning the image to its correct position on the sensor or film plane.