The Sony FE 300mm F2.8 GM OSS is a very sharp and fast telephoto lens for Sony E-mount cameras. This type of lens is a long-time favourite for sports shooters and wildlife photographers, who need both reach and a wide aperture to blur the background and to get fast shutter speeds to stop the action. It’s the lightest in its class, almost half of what such lenses typically used to weigh. That makes it easy to use, even hand-held for longer periods. To add to its versatility, it takes 1.4x and 2x teleconverters to turn it into a still impressively small and light 420mm f/4 or a 600mm f/5.6, while retaining fantastic image quality.