Quote Originally Posted by BrianL View Post
The Yashica/Contax lenses come in 2 series...
Actually, there are 4 series of Contax/Yashica bayonet mount lenses. The Contax Zeiss T*, and the Yashica ML (molti-coated), DSB (single coated), and YUS (Yashica U.S) lenses, with the DSB and YUS considered the "economy" lenses for the most part, although the YUS 135/2.8 and the 28/2.8 YUS aspherical lenses (with the 58mm filter ring, quite rare and not to be confused with the common 52mm filter thread variety) are quite good lenses.