Optical Filter Holder, Quick Change, 2.1 - 2.6 in., 2.0 in. Clear Aperture

The 71261 Quick Change Filter Holder provide the ability to quickly insert and remove filters in the middle of an optical train. A plunger on the bottom of the holder pops the filter up for easy removal. A light tight cover prevents leakage of ambient light into the enclosed optical path. It holds 2.1 to 2.6 inch (53 to 66 mm) circular or square filters and has a 2.0 inch clear aperture. 2 Inch Series flanges.