The new Tokina AT-X 535 Pro DX lens is a 50-135 with a fast constant aperture of f/2.8. This lens gives digital photographers the similar to industry standard 80-210 telephoto zoom lens in 35mm camera terms.
This lens incorporates SD (APO) glass to give clear sharp images. The front element has a newly formulated WP or Water Proof optical coating on the glass. This new coating makes marks such as spots left by water or finger-prints much easier to clean than standard multi-coating. Other features include a built-in tripod collar and One-Touch Focus Clutch Mechanism for fast switching between auto focus and manual focus modes.
Focal length: 50 to 135mm
Maximum aperture: f/2.8
Minimum aperture: f/32
Optical construction: 18 elements in 14 groups
SD glass: One element
Coatings: Water Proof optical coating Angle of view: 31 degrees 3' - 11 degrees 8'
Minimum focus distance: 39.3in. (1.0m)
Reproduction ration: :5.89
Zooming system: Rotary type
Number of diaphragm blades: 9
Filter size: 7mm
Maximum outer diameter: 3.07in.(78.2mm)
Dimensions: 3.07in.(78.2mm) X L 5.32in.(135.2mm)
Lens Hood BH-671
Mount availability: Canon and Nikon digital only - will not give full coverage on 35mm SLR cameras.
Recommended sensor size: APS-C Sized (23.7x15.6mm) CCD or CMOS sensor (w/1.5-1.6x magnification factor)