This SMC PENTAX-A 50mm f/1.4 lens is a vintage gem from the 1980s, compatible with Pentax K-mount cameras. It features manual focus and a maximum aperture of 1.4, allowing for beautiful bokeh and low-light photography. The lens is made of durable aluminium and weighs only 235g, making it lightweight and compact. The lens has a focal length of 50 mm and is compatible with a 49 mm lens front. The maximum diameter is 63 mm and the height is 63 mm. However, the lens is in balsam delaminated condition. Please check the photos.