Dial-X Instrumens Model D-50M Manual Collimator

2-axis Optical Tilt Stage Positioner , Manual. Great for mirrors, beamsplitter

Manual Miniature Goniometer Stage W60 Brass Material Dsgfwg40-40

AMERICAN OPTICAL SPENCER SPECTROMETER, COLLIMATOR & TELESCOPE MODEL #2556

Bennett D-50M collimator

gokosha collimator 24LT-2TDS lens tester bullseye at infinity one piece price！

Bennett Manual Collimator D50M Window

Bennett Manual Collimator D50M Mirror