This ultra-telephoto black 800mm f/8.0 Mirror T-Mount Lens from Samyang is a tremendous addition to your camera bag, opening up powerful telephoto possibilities. It's a wonderful lens for those starting to shoot wildlife or sports and thanks to its affordability, a great lens to round out your kit, offering you ultra-telephoto power if and when you may need it. Lightweight (33 oz. / 946g) and compact (5.68"/14.45 cm long), it can focus as close as 11' (3.5m), and its aperture is fixed at f/8.0. This manual focus lens is constructed from fully multi-coated, low-dispersion optical glass with a 105mm front filter thread and 30.5mm rear filter thread. A T-ring adapter (available separately) is required to mount this lens to a camera body.

Using a T-mount adapter, this lens will fit Canon, Nikon, Sony, Pentax, Olympus, and Contax cameras.
Lightweight (33 oz/946 g) 800mm telephoto lens
Low-dispersion optical glass
Fully multi-coated
Focuses to 11' (3.5 m)
Fixed f/8.0 aperture
Front 105 mm filter thread and rear 30.5 mm filter thread