The Tokina AF 16.5-135mm f/3.5-4.5 AT-X DX Lens with Nikon Mount is a compact, super wide zoom lens with a range that begins at 16.5mm and offers the photographer a wider angle of view than most lenses in its class. This makes the lens better suited for scenic and travel photography in addition to being a great standard lens for most general photography situations.
This lens has an optical design that benefits from the latest technological advances in the industry. Three aspherical elements, one all glass precision-molded element and 2 compound elements yield high contrast. Additionally two Super-low Dispersion (SD) glass elements correct chromatic aberration.
Note: This lens is designed for digital cameras with APS-C sized sensors, not designed for cameras with full frame sensors. It also will not auto focus when used on a Nikon D40 SLR camera body.