Pentax 40mm f/2.8 Limited HD DA

(From Pentax lens literature) This unique pancake-style standard lens with a 40mm focal length is offered with exclusive optical characteristics and a very high luminous intensity. Measuring just over a half inch in length and weighing just 3.17 ounces, find exceptional sharpness and image quality in this incredibly compact lens. Remain ‘the fly on the wall,’ and go unnoticed on your photo ventures, as this low-profile-style lens is ideal for reporting, travel and casual everyday snapshots. Its high-grade aluminum construction provides the utmost durability and elegant design, now further enhanced with treatments of both SP (Super Protect) and the PENATX-original High-grade multi-layer HD (High Definition) coating, and is available in both black and silver models.