Your pictures are only as good as the glass in your lens.
The Opteka mirror lens is incredibly compact and lightweight. Using an advanced reflex design, this is a mirror lens that is ideally suited for wildlife and sports photography. It has a fixed aperture of f8. It comes complete with a soft pouch and three (3) rear mounted, 30.5mm filters, (ND-2X, ND-4X & Skylight).
Opteka mirror lenses incorporates advanced computer designed optics and the latest in multi-coating techniques. The process of multi-coating assures virtually flare free photographs even under adverse lighting conditions resulting in crisp high contrast pictures with full color fidelity.
High Definition Optics Produce Sharper, More Intense Pictures!
Advances in high-index / low-dispersion optical glasses, new barrel materials, and exotic anti-reflection coatings, along with the latest in computer-aided-design / computer-aided-manufacturing, are combined to produce lenses of unprecedented quality. Diamond-cut from crystal-clear, water-white optical glass, Opteka lenses are ground and polished to a precise precision.
Opteka lenses put more creative control where it belongs - in your hands.
Weight: 360 grams
Filter Size Rear: 30.5mm
Filter Size Front: 72mm
Max Aperture: f:8
Min Aperture: f:8
Macro Magnification: 1:2.7
Minimum Focus Distance: 5.5'
Manual Focus: Yes
Model - MF 500mm f:8 Mirror Lens
High quality crystal optics
10 Year Warranty
Included - Opteka High Definition 500mm Telephoto Lens, T-Mount Adapter, ND-2X Filter, ND-4X Filter, Skylight Filter, Pouch, Front and Rear Lens Caps.