Long supplanted by the Asph version, this is a well-respected Mandler design that does a wonderful job. I have one that's not been used in a while because I kept it in the bag with the hood attached and that loosened the locating ring on the lens. I should get it fixed, because it was my go-to lens in this focal length. Not as quirky as the Super Angulon 3.4, and a good bit bigger, but it is a wonderful lens.