Pair of WF5X Microscope Eyepiece 30mm Ocular Optical Lens with Eyeguards

Olympus 5x Microscope Eyepiece Photo Relay Lens for M23 34443

vintage ? microscope lens part viewer eyepiece optical shaft barrel assembly ?

2 Pcs Biological Microscope Lens Replacement Experiment Eyepiece

Vintage 10x Ocular microscope lens, thought to be Baush and Lomb

Olympus Microscope Photo Relay Lens FK 3.3X

Dust Caps F 1.25" 2" Telescope Eyepieces Barlow lens or Accessories Plug and Cap

NIKON CF-PL4X PHOTO EYEPIECE RELAY LENS