The Canon EF 800-millimeter f/5.6L Image Stabilization UltraSonic Motor Autofocus Lens is one of the highest quality super telephoto lenses you can find. Even though it is an expensive lens, the results are worth it. Due to its features, it is a little heavier than recent models, but with a gimbal or a tripod, it will not be as noticeable. The autofocus is extremely fast, quiet, and is the smoothest out there. Whether you are shooting a subject that is standing still or moving at 200 miles per hour, you will be able to capture a crisp image of it with the superb autofocus and the image stabilizer. The longer focal length of the EF 800-millimeter f/5.6L lens is one of the reasons it is sought after due to its ability to capture subjects that are extremely far away, and make them look as though they are right in front of you. Wildlife photographers will especially love how animals at a distance will now appear close.

Another big selling point for this telephoto lens is its ability to work well in low light as well as the dark. Photographers who have always wanted to capture the moon will now be able to see every crater with the superb quality of this lens. It features special optical materials that allow it to correct chromatic aberrations before they even occur, which allows high-contrast and high-resolution images every time you take a photo. While there is a learning curve with this lens, any photographer will appreciate the improvement of quality in their images if they purchase it.