Super Telephoto Zoom Lens:The lens features manual focusing in F/8.3-16 aperture at 420-800mm focal length, to separately control the super focal zoom from cameras.
T-Mount Lens to AI-mount:T mount lens with adapter ring, replacement for T/T2 lenses to Nikon AI-mount D50 D90 D5100 D7000 D3 D5100 D3100 D3000 D60 cameras.
Functional Structure:The lens consists of 4 elements in 2 groups, with lock to fix the lens for precise shoot. Whole metal structured body provides with tough and durable constructions.
Ultra Multi Coating:Adopts multi-coated technology to reduce flare and ghost to get vivid color and clear images. Premium optical lens provides high light transmittance.
Universal 1/4 Mounting:The base with 1/4 screw thread down the lens makes wide application on tripod and monopod, the base with ring can rotate, convenient to install in seconds.
Exposure: Automatic exposure is available in Aperture Priority mode only for cameras with TTL metering systems; Other camera must be set in full manual
Focusing: Manual helical(rotary) operation(Not AF compatible)
Minimum Focusing Distance: 1.6 meters(5.25ft) from front lens