How to determine C mouth or CS interface?
C installation and CS.
Both threaded part of the same, but the distance from the lens to the photosensitive surface difference.
C installation seat: the distance from the camera installation datum to focus is 17.
And CS installation: the installation datum to focus distance is 12.
C C mouth mouth lens is generally divided into manual lens and automatic lens: the lens is manually focus, zoom, aperture size is mechanical manual control;
Automatic lens is before 3 can control yourself.
It in broad sense includes the TV camera, the camera lens, lens, monitoring the bolt of the motion-picture machine lenses, cameras.
The difference between CS lens and Cr interface lens C interface (
And CS (
Interface lens is one of the most obvious difference between lens and camera exposure to camera photosensitive components (
The CCD/COMS sensors)
The location (
The focal plane)
The distance is different.
This distance professional term is flange focal length, C interface flange focal length is 17.
5 mm, CS interface flange focal length of 12.
The two lenses are threaded coupling.
In the process of the use of the camera, usually type C standard C interface lens camera, CS by CS type camera lens.
But in the process of using C interface can be equipped with a 5 mm thick lens ring and the extension of CS type camera use collocation, and CS type C camera lens and cannot be used.
C interface lens without extended circle will cause lens sensor target surface, causing damage of sensors.
And CS lens and C is the cause of the camera can't use a combination of camera imaging surface and CCD receives distance too far, can't get focused image.