The pentax 70 200mm f28 ed dc aw d fa hd telephoto zoom lens joins the high performance star range developed for the highest level of image rendition the lens versatile zoom range coupled with its bright f28 aperture and lens coating technologies ensure crisp high contrast images even under demanding lighting situations in addition to four super low dispersion glass elements and two ed extra low dispersion glass elements its optics includes a pair of new super ed glass elements to