The combination of fluorite and Super UD elements with a bright f/2.8 aperture delivers exceptional clarity and color accuracy while isolating subjects against beautifully rendered bokeh. Its relatively light 2,900g build and 5.5-stop image stabilization make handheld shooting viable, a rare feat for a 400mm super-telephoto prime. This lens is best for professional sports and wildlife photographers who need uncompromising sharpness and fast autofocus in a weather-sealed, portable design.
