The smc FA 75mm f/2.8 Lens from pentax is a standard or normal lens with a
35mm format equivalent focal length of 59mm and a 40.5 degree angle of view
that closely approximates the human field of vision. The focal length allows a
relatively simple 6 element/5 group lens design that yields sharp detail with
a minimum of aberrations. The 75mm f/2.8 renders images without curvature of
field found in wide angle lens or the flatness and compression found in
telephotos.