Pentax SMC 67 75mm f/4.5

Manufacturer's Description:

"The smcp 67 75mm F4.5 lens is designed for use with 67 medium format cameras. This wide-angle lens is ideal for general-purpose outdoor photography. It provides a focal length equivalent to 35mm in 35mm format and a minimum focusing distance of 2.3 feet (0.7 meters). Like all PENTAX lenses, this lens is treated with the acclaimed smc coating for maximum light transmission, sharp definition, and high contrast while minimizing flare and ghost imaging."