This 500mm f/8.0 Mirror T-Mount Lens from Rokinon is a powerful addition to any photographer's kit bag. It's lightweight (12.7 oz/360 g) and compact (under 3.5" long) and it focuses as close as 5.6' (1.7m). The aperture is fixed at f/8.0. This manual focus lens is constructed from fully multi-coated low-dispersion optical glass, with a 72mm front filter thread, and a 30.5mm rear filter thread. A 2x neutral density filter, 4x neutral density filter and a skylight filter (all 30.5mm) are included. A T-ring adapter (available separately) is required to mount this lens to a camera body.
Lightweight (12.7 oz/360 g) 500 mm telephoto lens
Low-dispersion optical glass
Fully multi-coated
Focuses to 5.6' (1.7 m)
Fixed f/8.0 aperture
Front 72 mm filter thread and rear 30.5 mm filter thread