View Full Version : Lens mount threads

December 14, 2009, 00:27:29
I have a particular application, and would like to make up an adapter to fit into a DFK 21F04 casing, which appears to be 1 1/4" (there is a ring in the body, into which the CS thread is presented0. Can anyone confirm what thread the '1 1/4"' is exactly? Is it a standard thread of some sort?

Stefan Geissler
December 14, 2009, 10:27:00

the camera follows excatly the the CS-Mount specification : http://en.wikipedia.org/wiki/Cs_mount

December 14, 2009, 18:28:54
Hi Stefan

Thanks for your reply.

Actually, there is a threaded ring in the camera body, which adapts the camera to a CS thread. This ring has two slots in it. What is this larger thread? 1 1/4 x 32tpi? In other words, what is the thread in the camera body?

Thanks again

Stefan Geissler
December 15, 2009, 08:05:17
The ring inside the camera should not be remove or moved. It is calibrated to the camera. It has the usual CS / C mount thread.
The thread in the camera body is bigger, but you should not remove the inner ring with the two slots.