Optolong Black Friday Promotion 2024

Optolong Black Friday Promotion! Save up to 20% on selected filters. Promotion ends 30th of November 2024 so be quick!

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Optolong H-Alpha 7nm Narrowband Deep Sky Imaging Filter 2''

Optolong H-Alpha 7nm Narrowband Deep Sky Imaging Filter 2"£155.00   £124.00

The H-Alpha 7nm filter is the most popular narrowband filter allowing 7nm bandwidth of light centered on a wavelength of 656nm through, and reducing the transmission of certain wavelengths of light

Optolong SII 6.5nm Narrowband Deep Sky Imaging Filter 2''

Optolong SII 6.5nm Narrowband Deep Sky Imaging Filter 2"£155.00   £124.00

Optolong extra narrowband SII-CCD 6.5nm filter (Sulful II for CCD) is designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 672nm through, and reducing the transmission of certain wavelengths

Optolong L-eNhance Dual Narrowband Deep Sky Imaging Filter 2''

Optolong L-eNhance Dual Narrowband Deep Sky Imaging Filter 2"£149.00   £126.00

L-eNhance provides an economical and practical solution for amateurs. It is a dual-band pass filter which has been designed for DSLR (digital SLR), color CMOS and CCD cameras.

Optolong LRGB Deep Sky Imaging Filterset 1.25''

Optolong LRGB Deep Sky Imaging Filterset 1.25"£169.00   £135.00

The LRGB filter set is designed for maximum contrast and with extremely high gradients for clear differentiation of colors. The LRGB filter set divides the spectrum into its components red, green, blue and luminance.

Optolong OIII 6.5nm Narrowband Deep Sky Imaging Filter 2''

Optolong OIII 6.5nm Narrowband Deep Sky Imaging Filter 2"£169.00   £135.00

The Optolong extra Narrowband OIII-CCD 6.5nm filter is designed for nebula observation allowing 6.5nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, and reducing the transmission of certain wavelengths of light

Optolong L-eXtreme Dual Band Narrowband Filter

Optolong L-eXtreme Dual Band Narrowband Filter£138.00  -  £177.00

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.

Optolong L-Pro Broadband Light Pollution Filter EOS Clip

Optolong L-Pro Broadband Light Pollution Filter EOS Clip£169.00   £143.00

The L-Pro (L-Professional) filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings

Optolong L-Pro Broadband Light Pollution Filter EOS-R Clip

Optolong L-Pro Broadband Light Pollution Filter EOS-R Clip£169.00   £143.00

Optolong L-Pro (L-Professional) filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings including mercury vapor lamps

Optolong L-eNhance Dual Narrowband Canon EOS Clip In Deep Sky Imaging Filter

Optolong L-eNhance Dual Narrowband Canon EOS Clip In Deep Sky Imaging Filter£175.00   £148.00

L-eNhance provides an economical and practical solution for amateurs. It is a dual-band pass filter which has been designed for DSLR (digital SLR), color CMOS and CCD cameras.

Optolong L-Pro Broadband Light Pollution Filter EOS Clip Full Frame

Optolong L-Pro Broadband Light Pollution Filter EOS Clip Full Frame£185.00   £157.00

The L-Pro (L-Professional) filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings

Optolong 2'' L-Quad Enhance Filter

Optolong 2" L-Quad Enhance Filter£198.00   £168.00

L-Quad Enhance Filter is a quad bandpass light pollution suppression filter for colour cameras. It effectively
suppresses the transmission of light pollution wavelengths

Optolong LRGB Deep Sky Imaging Filterset 2''

Optolong LRGB Deep Sky Imaging Filterset 2"£245.00   £195.00

The LRGB filter set is designed for maximum contrast and with extremely high gradients for clear differentiation of colors. The LRGB filter set divides the spectrum into its components red, green, blue and luminance.

Optolong SHO Narrowband Deep Sky Imaging Filterset 1.25''

Optolong SHO Narrowband Deep Sky Imaging Filterset 1.25"£315.00   £252.00

SHO filters set is matched with astronomical monochrome CCD, DSLR(digital camera) to shoot astronomy objects with single channel. These filters set are commonly used by astrophotographers to present their photos in Hubble Pallete.

Optolong L-Ultimate Dual-Band 3nm Filter 1.25''

Optolong L-Ultimate Dual-Band 3nm Filter 1.25"£299.00   £254.00

It's about a 3nm dual band designed to drastically reduce the effect of light pollution, the 3nm isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue).

Optolong L-Ultimate Dual-Band 3nm Filter 2''

Optolong L-Ultimate Dual-Band 3nm Filter 2"£389.00   £330.00

It's about a 3nm dual band designed to drastically reduce the effect of light pollution, the 3nm isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue).

Optolong SHO Narrowband Deep Sky Imaging Filterset 2''

Optolong SHO Narrowband Deep Sky Imaging Filterset 2"£405.00   £375.00

SHO filters set is matched with astronomical monochrome CCD, DSLR(digital camera) to shoot astronomy objects with single channel. These filters set are commonly used by astrophotographers to present their photos in Hubble Pallete.

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Rother Valley Optics Ltd
Rother Valley Optics Ltd