Pentax Pentax-Fa645 Smc 400Mm F5.6 Ed (If) Lens | Medium Format Lenses

The Pentax 400Mm F5.6 Ed If Smc Fa Lens Is A Telephoto Prime Compatible With Both Film And Digital Pentax 645 Cameras. It Comes With Inner Focusing, Multi-Coatings, An Af/Mf Switch, And Extra-Low Dispersion (Ed) Glass To Correct Chromatic Aberrations For Improved Contrast And Sharpness.