Pentax is set to launch an adapter that allows K-mount lenses to be mounted on Pentax Q series cameras. This enables photographers to use 215 different lenses on their Pentax Q bodies, with a crop factor of 5.5 - this means that a 300mm optic becomes equivalent to a 1650mm super-supertelephoto lens. Auto focus is not maintained and the aperture can only be adjusted manually. The adapter incorporates a five-bladed mechanical shutter with a top shutter speed of 1/1000 second. The Pentax Adapter Q will start shipping in October, at a recommended retail price of £249.99/$249.95. An optional tripod collar will also be available.