Description
1.5x Optical glass prismatic lenses with 20″ focal distance. Ground and polished to precision optical standards – bevel edged.
1.5x Optical glass prismatic lenses with 20″ focal distance. Ground and polished to precision optical standards – bevel edged.
1.5x Optical glass prismatic lenses with 20″ focal distance. Ground and polished to precision optical standards – bevel edged.