Filters-Imaging

Optolong L-eXtreme 2in Filter   L-eXtreme is a two 7nm bandpass filter which can be used with one-shot color cameras like DSLR's (digital SLR), and monochrome CCD cameras, it is also more suited for fast systems. The convenience and cost...

Optolong L-eNhance EOS-C Filter Designed for DSLR (digital SLR), color CMOS and monochrome CCD cameras. Isolates the H-Alpha, H-Beta, and Oxygen III nebula emission lines and achieves a maximum transmission of up to 90%. Good for use in heavily light...

Optolong L-eNhance 2in Filter Designed for DSLR (digital SLR), color CMOS and monochrome CCD cameras. Isolates the H-Alpha, H-Beta, and Oxygen III nebula emission lines and achieves a maximum transmission of up to 90%. Good for use in heavily light...

Optolong L-eNhance 1.25in Filter Designed for DSLR (digital SLR), color CMOS and monochrome CCD cameras. Isolates the H-Alpha, H-Beta, and Oxygen III nebula emission lines and achieves a maximum transmission of up to 90%. Good for use in heavily light...

Optolong Venus U 2in Filter Image Venus in the UV-A (320-400nm) and observe Venus’ cloud structures.

Optolong Venus U 1.25in Filter Image Venus in the UV-A (320-400nm) and observe Venus’ cloud structures.

Optolong Variable Polarizer 2in Filter   Adjust the brightness level of the Moon, Venus, and other bright objects with the Optolong Variable Polarizer. A standard Moon Filter is like a pair of shades. They work fine, however in some cases the scene...

Optolong Variable Polarizer 1.25in Filter

Optolong IR Pass 2in Filter Atmospheric seeing and distortion is much reduced at longer IR wavelengths and as such, the IR Pass 685nm filter is designed to block wavelengths below 670nm and can be used in IR-LRGB imaging to produce a sharper luminance...

Optolong IR Pass 1.25in Filter Atmospheric seeing and distortion is much reduced at longer IR wavelengths and as such, the IR Pass 685nm filter is designed to block wavelengths below 670nm and can be used in IR-LRGB imaging to produce a sharper luminance...

Optolong OIII 6.5nm 36.2mm Filter Designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through. which corresponds to OIII emission lines. Reduces the transmission of artificial light including mercury vapor,...

Optolong OIII 6.5nm 31.2mm Filter

Optolong OIII 6.5nm 2in Filter Designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through. which corresponds to OIII emission lines. Reduces the transmission of artificial light including mercury vapor,...

Optolong OIII 6.5nm 1.25in Filter Designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through. which corresponds to OIII emission lines. Reduces the transmission of artificial light including mercury vapor,...

Optolong Moon and SkyGlow 2in Filter Designed to darken the background sky by blocking light transmission from skyglow 589nm and many street light emissions from artificial light. 

Optolong Moon and SkyGlow 1.25in Filter Designed to darken the background sky by blocking light transmission from skyglow 589nm and many street light emissions from artificial light.