Optolong
Optolong Optics Co. ltd. is a manufacturer of astronomy filters, fluorescence filters. Optolong also offer other interference filters like UV filters, visible filters and Near inferred filters, beam splitter, anti-reflection coating and optical mirrors as a OEM service.
Optolong H-Alpha 7nm 36mm
€ 175.00Optolong L-Pro Filter 2"
€ 190.00Optolong Kit LRGB 36mm
€ 269.00