This lens is part of the Pentax-Q "High Performance" lens series, designed to maximize image quality, and it features two aspherical lens elements, super-protect lens coating, as well as built-in quiet AF motor. With this lens, a Pentax Q system camera will be able to synchronize the built-in flash up to the maximum shutter speed of 1/2000s. A lens hood is available but sold separately. The lens mount is made of metal. It accepts 40.5mm lens filters.