Fast autofocus is a quality a lot of photographers, both professional and amateur look for, and with the Canon EF 100-millimeter f/2.0 UltraSonic Motor Autofocus Lens, it is a quality that is achieved. This well built, small, and lightweight autofocus lens is great for portraits, candid photos, and environmental shots, including anything with a shallow depth of field, such as flowers and plants. There is little to no distortion, regardless of distance or f-stop. Sharpness can be seen throughout the entire frame, and there is essentially no distortion.

While the Canon EF 100-millimeter f/2.0 UltraSonic Motor Autofocus Lens has its perks, the downside of the autofocus feature is that it is very loud and can be picked up if you are recording video. Also, there is no image stabilizer in this autofocus lens, so it is best to keep a watchful eye when taking your photographs. Regardless of how loud the autofocus feature is, this lens does extremely well in low light situations due to its wide aperture. It focuses very quickly thanks to the ring-UltraSonic Motor, which helps maintain sharpness even when it is completely open. The Canon EF 100-millimeter f/2.0 UltraSonic Motor Autofocus Lens will make a great fit for professionals and beginners alike.

Canon is well known for its L series lenses, and they have lived up to expectations with the Canon EF 100 to 400-millimeter f/4.5-5.6L Image Stabilization II UltraSonic Motor Lens. It is an upgrade from the previous model, and photographers can't stay away from this lens. The EF 100 to 400-millimeter lens has an inner focusing ring UltraSonic Motor, which allows fast and accurate autofocusing. Autofocus along with the rotation-type zoom ring and image stabilization allow for this lens to produce sharp images even without a tripod. Many wildlife photographers will enjoy this lens because of its ability to capture animal subjects clearly regardless of whether they are static or moving. Even if the subject is moving, the image will not display any visible distortion or flares. The EF 100 to 400-millimeter lens is also resistant to dust and water, which allows any photographer to take their lens through rough conditions.

The Canon EF 100 to 400-millimeter L lens is not just good for wildlife, it excels at sporting events as well. While it may be a little stiff when changing focal distance quickly, it is great for shooting multiple shots at whatever focal length you prefer. The image quality is even sharp when the lens is wide open. The price may be a little expensive, but it is worth it for any photographer who wants to produce clear images with great color, contrast, and sharpness.