Quote Originally Posted by TheFlyingCamera View Post
Caltars are (or were) either Schneider or Rodenstock lenses with different labels on the outside. It just depends on the focal length and the age as to who was the OEM. So they're greatly underappreciated bargains.
Yeah, I agree that the later rebadged Rodenstock and Schneiders are indeed a bargain.

I own a 300mm f/5.6 Caltar HR lens in a Copal 3 shutter that is a nice performer too. The HR stands for Horseman but the lens was actually made by Topcon who used to supply Horseman with lenses. From what I have read earlier Caltars were made by Ilex and Komura.