2 ED (Extra-Low Dispersion) Elements
Finally available as a serious zoom telephoto for sports, wildlife, and other applications, the Pentax DA* 60-250mm f/4 ED (IF) SDM Autofocus Lens truly adds an important element to the collection of lenses for the Pentax system. They've had some little jewels which any brand would covet, but in the telephoto department they've not had a 'big gun' since the film days. Now they do; the DA* 60-250 will give you professional results for many of life's sporting, action, and wildlife opportunities.
Designed by Marc Newson and with a profile that is .36 inches thin at 1.8oz Fixed focal length 40mm prime lens is equivalent to 61mm in the 35mm format