by mediaed » Sun Jun 19, 2016 5:45 am
These are hard to find. The story goes, a few years ago, the Chinese discovered these old lenses -- the cells, easy and cheap to put into new mounts for modern cameras. The mounts and barrels in large quantities were tossed and probably melted down to become lawn furniture parts or some such.
As hard as these are to find, of course, each focal length lens also has its own specific mount because of the need for different pitch of the focus threads. One size does not fit all. The one in your picture appears to be for a wide angle lens. The focal length should be marked on the outside-- usually near the tightening screw. ED.
These are hard to find. The story goes, a few years ago, the Chinese discovered these old lenses -- the cells, easy and cheap to put into new mounts for modern cameras. The mounts and barrels in large quantities were tossed and probably melted down to become lawn furniture parts or some such.
As hard as these are to find, of course, each focal length lens also has its own specific mount because of the need for different pitch of the focus threads. One size does not fit all. The one in your picture appears to be for a wide angle lens. The focal length should be marked on the outside-- usually near the tightening screw. ED.