[2024 NEW] Optolong L-Para(L-Parallels) dual band 10nm narrow band light pollution filter

L-Para(L-Parallels) is a brand new dual narrowband 10nm light pollution filter. The FWHM of L-Para is 10nm for...

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[2023 NEW] Optolong L-Quad Enhance Filter (L-QEF) quad bandpass light pollution suppression filter

L-QEF cuts out light pollution from mercury and sodium lamps and produces a nice broadband image with minimal ...

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[2023 NEW] Optolong L-eXtreme F2 fast optics highspeed dual-band narrowband pass filter

Optolong L-eXtreme F2 is a dual-band (500.7 nm and 656.28 nm, FWHM=7 nm) narrowband pass filter that meets the...

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[2023 NEW SIZE] Optolong L-Ultimate dual-3nm 1.25" filter

Optolong L-Ultimate 1.25" has been added. It's about a 3nm dual band designed to drastically reduce the effe...

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[2022 NEW] Optolong L-Ultimate dual-3nm filter

It's about a 3nm dual band designed to drastically reduce the effect of light pollution, the 3nm isolates the ...

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[2021 NEW] Optolong SHO-3nm narrowband filters kit

Optolong SHO-3nm filter kit includes SII3nm, H-Alpha3nm, and OIII3nm narrow band filters, generally working wi...

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Optolong UV/IR Cut

Optolong UV/IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of...

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[2020 NEW] Optolong L-eXtreme dual-band astronomy narrow band filter

Unlike the Optolong L-eNhance filter which is a tri-band (transmits Hb, Ha, and OIII), the L-eXtreme filter is...

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Optolong SII 6.5nm imaging narrow band filter for nebulae photography

Improved narrowband SII 6.5nm filter (Sulful II for CCD) is designed for nebula observation allowing 6.5nm ban...

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Optolong improved OIII6.5nm narrowband filter

Improved Narrowband OIII 6.5nm filter is designed for nebula observation allowing 6.5nm bandwidth of light cen...

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Optolong H-Alpha 7nm Narrowband Filter Improved Version for deepsky nebula imaging

Optolong H-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of light centered on a wav...

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Optolong improved NB filters SHO6.5nm narrowband filter Kit

SHO6.5nm filter kit includes SII6.5nm, H-Alpha7nm, and OIII6.5nm narrow-band filters, generally working with a...

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LRGB Filter Kit

The LRGB filter set is designed for maximum contrast and with extremely high gradients for clear differentiati...

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L-eNhance filter for color CMOS or CCD color camera or DSLR

Optolong L-eNhance is a dual-band pass filter which has been designed for DSLR (digital SLR), color CMOS and m...

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Optolong LPS filter L-Pro for deep sky nebula consteallation photography

Optolong L-Pro is multi-bandpass filter which offers better color balance by maximizing the transmission band....

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