The Britton Adjustable Lens Mount is designed to securely hold a wide range of circular and irregular-shaped optics. Individually adjustable Delrin®-tipped fingers provide firm, non-marring clamping while ensuring precise optic centering. Laser-engraved reference markings enable repeatable positioning, and the integrated M4 tapped hole allows easy mounting to Ø12.7 mm (1/2") optical posts. Ideal for lenses, filters, mirrors, and other optical components of non-standard sizes