Brand: Canon 12 Months warranty 

Color: Black
Features:

180mm macro lens with f/3.5 maximum aperture for Canon SLR cameras
3 UD glass elements and internal floating system combine to minimize aberrations
Advanced ultra-sonic monitor (USM) for high-speed, quiet autofocusing
Focusing distance range of 1.57 feet to infinity; supports EF Extender 1.4x and 2x
Measures 3.2 inches in diameter and 7.3 inches long; weighs 2.4 pounds; 1-year warranty

Details: From the Manufacturer Bring small things into full-sized view with the Canon EF 180mm macro USM lens. Macro lenses can uncover detail that would be impossible to detect by the eye and give new perspective to extremely minute subjects such as insects or the petals of a small flower, and this lens is no exception. The 180mm lens offers such features as three UD glass elements and an internal floating system, which combine to minimize aberrations caused by changes in the focusing distance; an advanced ultra-sonic monitor (USM) for high-speed, quiet autofocusing; full-time mechanical manual focusing; and a focusing distance range of 1.57 feet to infinity. Compatible with the EF Extender 1.4x and 2x, the lens carries a one-year warranty. Focal length: 180mm Maximum aperture: 1:3.5 Lens construction: 14 elements in 12 groups Diagonal angle of view: 13 degrees (at 30 feet) Focus adjustment: Inner focusing system with USM Closest focusing distance: 1.6 feet Filter size: 72mm Dimensions: 3.2 inches in diameter, 7.3 inches long Weight: 2.4 pounds
Package Dimensions: 11.2 x 6.1 x 5.6 inches
Binding: Electronics