Mamiya 210mm f/4 ULD IF Lens for Mamiya 645AF, Phase One Body Review

The Mamiya 210mm f/4 ULD IF is a medium telephoto lens designed for Mamiya 645AF and Phase One medium format bodies, offering a 130mm equivalent field of view in 35mm terms. Its 19-degree angle of view and moderate telephoto compression make it well suited for portrait work, providing natural subject isolation without the exaggerated compression of longer telephotos. The ULD (ultra low dispersion) glass elements help maintain contrast and sharpness, particularly at closer focus distances where chromatic aberration can degrade image quality. The internal focusing mechanism keeps the lens compact and maintains balance during focus, a practical advantage when working handheld or on a gimbal. This particular listing is a used copy in bargain condition with a sticky surface, offered at a modest $103 price point. For medium format shooters working within the Mamiya 645AF or Phase One ecosystem who need a dedicated portrait or short tele lens, this represents an affordable entry into the focal length, though buyers should be prepared to address the cosmetic surface issue.