Using a C-Mount Lens with a CS-Mount Camera

A Machine Vision FAQ:
Can I use a C-Mount Lens with my CS-Mount Camera?

Yes, A C-Mount lens can be used with a CS-Mount Camera with the use of a 5mm spacer.

The C-mount specification requires a 17.5mm distance from the lens mounting surface to focus on the cameras sensor (CCD or CMOS). The CS-mount specifications requires a 12.5mm distance from the lens mounting surface to focus on the cameras sensor. By adding the 5mm spacer to a CS-Mount Camera you in effect produce the required 17.5mm focal distance that all C-Mount Lenses are designed for.

Important note: CS-Mount Lenses CANNOT be used with C-Mount Cameras!

New Machine Vision Telecentric Lens for gauging applications
Press Release:http://news.thomasnet.com/fullstory/821297

What is a Telecentric Lens?
Well if you read the standard definitions you will hear alot of optical technical "mumbo jumbo" of which the information is true but doesn't do most application engineers much good.
So here is a basic description...

Telecentric lenses, unlike conventional lenses, only accept parallel cones of light. This means objects maintain there image size regardless of their distance from the lens. This eliminates the perspective effect noticeable in applications that use standard lenses.

Telecentric lenses are ideal for gauging appliations because they provide a true "caliper" measurement. While improving accuracy they also are less affected by part misalighnment. Not only can telecentric lenses eliminate the perspective effect but high quality telecentrics such as Industrial Vision Components' Elite Series Telecentric Lenses have an extremely low distortion providing for accurate measurements in any region of the Field of View (FOV).

MVG