Pentax SMC FA 645 35mm f/3.5 IF
When used on the pentax 645D this wide-angle lens has a focal length
equivalent to 28mm in the 35mm format. It features Inner Focusing for easy
handling and constant centre of gravity, smc lens coatings to increase the
amount of light transmitted by the lens and 2 aspheric lens elements for sharp
pictures. Compatible with both film and digital pentax 645 cameras.