Quote Originally Posted by kthalmann
The Tessar, Protar, Celor (Artar), Dagor, Planar, etc. patents all expired long before WWII. These designs all date from the 1890s through early 1900s. Most had expired by the late 1910s or early 1920s.
...
Kerry
I'm with you here. My 8x10" lens selection currently consists of a 240/420 Symmar and a 165 Angulon. Removing the front of the Angulon gives me about 300mm. Resolution is still good enough for contact prints, which is all I do in this size anyway.

So what I would like is a 500/900 convertible Symmar or similar - NOT a 500mm super-duper lens which costs more than all my other camera gear combined...