This clever device holds 2.0 inch (50.8 mm) diameter and square filters up to 0.5 inch (12.7 mm) thick, between two collimating, focusing or imaging beam probes. The filters are side loaded and popped out by a plunger for quick removal. A cover, locked in place by a thumbscrew, prevents light leakage. The 7124 Adapter holds 1.0 inch (25.4 mm) diameter filters in the filter holder.

This clever device holds 2.0 inch (50.8 mm) diameter and square filters up to 0.5 inch (12.7 mm) thick, between two collimating, focusing or imaging beam probes. The filters are side loaded and popped out by a plunger for quick removal. A cover, locked in place by a thumbscrew, prevents light leakage. The 7124 Adapter holds 1.0 inch (25.4 mm) diameter filters in the filter holder.