Lightweight, easy-to-carry 600mm super telephoto fixed focus lens The first 600mm super telephoto fixed focus lens in the Canon EOS R series. Thanks to the high flexibility of the RF mount optical design, it is easier to achieve high image quality. The lens adopts DO lens, telescopic lens barrel and fixed aperture, which greatly reduces the weight and size of the lens, making it very portable. The lightweight lens body and IS image stabilizer with a maximum shutter speed equivalent to 5 stops provide strong support for handheld shooting. When paired with the two RF extenders, RF1.4× or RF2×, you can obtain super telephoto focal lengths of 840mm or 1200mm respectively. It is very suitable for shooting a variety of different subjects such as wild birds, animals, airplanes, trains, scenery, outdoor sports, etc. As a 600mm lens positioned to be more user-friendly, I believe more users will experience the charm of super telephoto lenses.