Tamron SP 200-500mm F/5-6.3 DI Auto Focus Zoom Lens

This is a new zoom lens from Tamron that lets you bring your far away subjects up close while compressing the distance between the main subject and the background for professional-looking results. Even while covering up to a 500mm that enables you to take ultra telephoto shots of subjects further than the eye can see, its design is extremely lightweight and compact. When mounted on an APS-C size digital SLR camera, it provides a focal length equivalent to a 760mm for super ultra telephoto imaging.
Specifications
Construction 10 Groups/ 13 Elements
Angle of view 12°-5°
F stop range 5-32
Closest Focusing Distance 98.4in. (2.5m)
Maximum Magnification 1:5.0
Filter Size 86mm
Dimensions (Length x Diameter) 8.9 x 3.7in. (227mm x 93mm)
Weight 43.6 oz. (1237gm)
For Canon
For Nikon