Buy from Amazon.com : http://fave.co/1O5ARNf

Canon EF 800mm f/5.6L IS USM Super Telephoto Lens for Canon Digital SLR Cameras

Product Description :
The Canon EF800mm f56L IS USM which is a L Luxury series lens incorporating a high-performance Image Stabilizer feature optical systems utilizing special optical materials such as fluorite to correct chromatic aberrations making possible high-resolution high-contrast shooting performance