APM 50mm finder (APM-50S)
Telescope or lens

APM 50mm finder (APM-50S)

apm-telescopes.net/.../apm-finder-50-mm-straight-trough-white-set
TypeRefractor: achromatic
Diameter50 mm
Focal length205 mm
Weight0.70 kg
Users 2
Images 3
Most often used with

There doesn't seem to be anything here.