Pentax smc Pentax-M 85mm f/2 - Pentax K Mount

The Pentax-M 85mm f/2 is an ultra-compact short telephoto lens designed for the M-series 35mm SLR cameras. Its focal length is ideal for portraiture, offering a natural perspective and pleasant background separation. Despite its small size, it features a robust all-metal construction and a smooth manual focus ring with a long throw for precise adjustments. When inspecting used examples, ensure the manual focus action is fluid without gritty spots. The six-blade diaphragm should be free of oil and snap shut instantly. SDS checks for internal haze or fungal growth, which can sometimes occur in older Pentax optics. The front filter thread is 49mm; check for any dents that might prevent the attachment of filters or the hood.