Canon RF 600mm F11 IS STM Prime Lens black.Lens Type: Super-telephoto lens Mount: RF mount (compatible with Canon full-frame mirrorless cameras) Focal Length: 600mm Aperture: Maximum aperture of f/11 Minimum Aperture: f/22 Autofocus: Stepper Motor (STM) for smooth and quiet autofocus Image Stabilization: Yes (5-stop IS system) Minimum Focus Distance: 4.5m (14.8 feet) Maximum Magnification: 0.14x Construction: 10 elements in 7 groups Filter Size: 86mm Dimensions: 89.5 x 207mm (3.5 x 8.1 inches) W