Optolong

Optolong

Optolong Optics Co., ltd is the brand owner of Optolong which is a manufacturer of astronomy filters, fluorescence filters.

The five-band pass filter L-Pro has received one of the most positive feedbacks in the astronomy world. Optolong also manufactures other filters such as UHC, H-Beta, O-III, H-Alpha, SII, LRGB.

The new L-eXtreme filter is a 7nm bandpass filter that can be used with one-shot color cameras. Or with DSLRs, (digital SLR) and monochrome CCD cameras and is also suitable for high-speed systems.

The convenience of this filter allows amateurs to visualize a rich emission nebula. Even in bright, slightly dirty areas.