ThorLabs SM2L20 SM2 Lens Tube, 2" Thread Depth, One Retaining Ring Included

THORLABS - Aspheric Condenser Lens, Ø25 mm, f=20.1 mm, (ACL2520U-A)

2X Thorlabs Polaris-SM05RR Stainless Steel SM05 (0.535"-40) threaded retain ring

ThorLabs SM2L05 SM2 Lens Tube, 0.5" Thread Depth, One Retaining Ring Included

THORLABS LMR1/M Lens Mount + Hex Adjuster 3/16" HEX + Lens Assy GUARANTEED

ThorLabs SM2L10 SM2 Lens Tube, 1" Thread Depth, One Retaining Ring Included

THORLABS NFL5P1/M BASE ADAPTER PLATE

Thorlabs Adjustable/ Variable Height Pedestal Post (P-Post) BLP01/M 1-1/2" OD