Camera mount

Camera mount is the mounting part on the lens side for fixing to the camera.
Each camera mount has a different size thread and flange back (FB: distance from sensor to lens flange)Common camera mount FB are shown below.
Mount    FB(mm)    Mount     FB(mm) 
C-mount    17.526    F-mount    46.5
CS-mount    12.526     M42-mount   ※1
S-mount    M10.5/P0.5  M72-mount   ※1
TFL-Ⅱmount 17.5 M95-mount ※1
※1 FB size depends on the camera manufacturer. You need to make sure both mount thread and FB are correct to get the correct image.

Camera mount