Thorlabs BB05-E02 - Ø1/2" Broadband Dielectric Mirror, HR @ 400 - 750 nm

Thorlabs TR3-P5 Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 3"

Thorlabs RA90-P5 Right-Angle Clamp for Ø1/2" Posts, 3/16" Hex, 5 Pack

Lot of 2 THORLABS SM05RR Replacement 1/2" Retaining Ring

NEW Thorlabs NE505B Unmounted Ø1/2" Absorptive ND Filter OD 0.5

NEW Thorlabs NE506B Unmounted Ø1/2" Absorptive ND Filter OD 0.6

Thorlabs TR4-P5 Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 4"

NEW Thorlabs NE502B Unmounted Ø1/2" Absorptive ND Filter OD 0.2