Pentax smc Pentax 50mm f/1.2 - Pentax K Mount

The smc Pentax 50mm f/1.2 is the fastest standard lens in the K-mount range, designed for exceptional low-light performance and very shallow depth of field. This manual-focus lens is prized for its soft bokeh and classic rendering when wide open, becoming very sharp as it is stopped down. Its large glass elements and eight-blade diaphragm make it a substantial piece of glass for portraiture and available-light photography. Inspect the lens carefully for internal haze or 'balsam separation' between elements, which can occur in high-speed lenses of this age. The focus helicoid should be smooth and even; a loose or gritty feel may indicate a need for servicing. SDS checks the aperture blades for oil and ensures the rubber focus grip is securely attached and has not expanded or become tacky.