How to Focus your C-mount lens

Just Received Your Schneider-Kreuznach C-Mount Lens? Here's What You Need to Know

All Schneider's Compact, C-mount lenses have adjustable focus capability. When you receive your new Compact, C-mount lens, it will look something like this: Middle adjustment of lens

Adjusting the Focus-Locking Collar on Your C-Mount Lens

Note that the focus-locking collar contains a 2 mm hex head screw. Once this hex head screw is loosened (about three revolutions), the focus-locking collar can be screwed onto the lens body. This mechanism allows you to fix the focus position, ensuring stability even in environments with high vibrations.

• Use a 2-mm Allen Key to make sure the focus-locking collar screw is tight.
• Screw the lens onto your camera and make sure the fit is tight. (Note: If the focus-locking screw ends up in an inaccessible position, you may need to remove the lens from your camera, loosen the locking screw, spin the locking collar about 45 degrees, tighten the locking screw again, and reinstall the lens on your camera.)
• Use a 2-mm Allen Key to loosen the focus-locking collar screw.
• Rotate the focus-locking collar to a position that puts the focus-locking screw in a convenient orientation.
• Rotate the lens body to bring the image into focus.
• Use a 2-mm Allen Key to re-tighten the focus-locking collar screw.

^{Machine Vision Camera with C-Mount lens}