Designed to deliver top optical performance the Pentax 60-250mm f/4.0 ED DA* SDM Autofocus Lens is a versatile telephoto zoom lens. Combining advanced technologies including super-low-dispersion optical elements extra-low dispersion (ED) optical elements and Pentax original lens coatings this multipurpose lens assures outstanding image quality with clear high-contrast images even at image field edges.
It features water and dust resistant sealing for reliable operation in inclement conditions and a Pentax Quick-Shift Focus system allowing instant auto-to-manual focus switching. The objective lens surface is treated with the Pentax original Super Protect (SP) coating. This special fluorine compound is applied to the lens surface through a vapor deposition process creating a surface that effectively repels dust water and grease making it easy to wipe off fingerprints/cosmetic marks.