The Vivitar 800mm f/8 Mirror Lens is an excellent addition to your camera gear. It opens up powerful opportunities without compromising quality. Using an advanced reflex design, our lens is a fraction of the size and weight of a traditional 800mm. It focuses as close as 11 Feet, with a fixed aperture of f/8. The Super Spectra Coatings assure virtually flare free photographs even under adverse lighting conditions. A simple T-mount adapter makes this lens work with both film and digital SLR cameras.
Specifications:
?Filter Size: Rear-mounted screw-in 30.5mm
?Minimum Focus Distance: 3.5ft
?Angle of View: 3.5 degrees
?Groups/Elements: 14/18
?Lens Coating: Multicoated
?Length: 18.1?
?Weight: 9.9 lbs
?Five Year Warranty