These lenses were displayed at tradeshows and may show very minor sign of handling.
A set of 3 different sized lenses, 60mm, 72mm, and 90mm. Great for telescope builders, hobbyists, science experiments, physics classroom demonstrations in optics and light refraction, etc.

60mm two element achromat (color correct crown & flint) fully multi-coated air spaced objective lens in plastic cell that fits tubes with an 68mm Inner Diameter. Focal Length is Approx. 750mm
72mm two element achromat (color correct crown & flint) fully multi-coated air spaced objective lens in plastic cell that fits tubes with an 80mm Inner Diameter. Focal Length is 800mm
90mm two element achromat (color correct crown & flint) fully multi-coated air spaced objective lens in plastic cell that fits tubes with an 97mm Inner Diameter. Focal Length is Approx. 450mm

Sunshade included and can be removed from cell.
Cap included.
Lenses can be removed from cell. They are not glued together. Includes lens spacer.
Please see images.