Optolong H-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of light centered on a wav...
Clear Sky Filter is a light pollution filter supressing light pollution to improve contrast of the Milk Way. ...
SHO6.5nm filter kit includes SII6.5nm, H-Alpha7nm, and OIII6.5nm narrow-band filters, generally working with a...
The LRGB filter set is designed for maximum contrast and with extremely high gradients for clear differentiati...
Optolong L-Pro is a multi-band broadband filter that can effectively suppress the emission point of light dama...
Optolong L-Pro is multi-bandpass filter which offers better color balance by maximizing the transmission band....
Optolong L-eNhance is a dual-band pass filter which has been designed for DSLR (digital SLR), color CMOS and m...