The Pentax SMC Takumar lens offers a minimum focus distance of 45 cm and a maximum magnification of 0.15x. In addition, this Pentax camera lens offers a minimum aperture of f/16 and maximum aperture of f/1.4. Optical construction on this 50 mm f/1.4 lens includes seven elements in six groups. Furthermore, this Pentax camera lens offers a diagonal APS-C field of view at 32 degrees and a horizontal APS-C field of view at 27 degrees. The diaphragm in this Pentax camera lens is automatic and the lens accepts 49 mm filters so that photographers can add an artistic touch to a photograph. The infrared focusing mark on this Pentax SMC Takumar lens is located to the left of the number four on the DOF scale. This 42-mm screw mount lens is compatible with a variety of digital and film cameras, making it a versatile choice for photographers. The 50 mm f/1.4 lens weighs 250 g.