Used to eliminate or greatly reduce glare, rotating linear polarizers offer maximum flexibility and ease of use. Rotating the mount and visually observing the results makes it easy to determine the position at which glare reduction is maximized. The locking thumb screw ensures that vibration or accidental movement during cleaning keeps the polarizer optimally positioned. Fixed, non-rotating mounts are also available. *Not available in 1mm thickness or standard 25.4™ C-Mount option. For filters thicker than 1mm, we offer an alternative mounting solution that has an overall thickness of 5.5mm. This mount can accommodate filters up to 3.5mm thick.