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Narrowband Filters

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This high performance CCD filter transmits only the Hydogen Beta emission line, and therefore is useful for greatly increasing the contrast of objects that glow in the corresponding region of the spectrum, for example the Horsehead, Cocoon and California nebulae.

ONLY £28.00  -  £39.99

OVL Hydrogen Beta Filters


The O-III narrow band-pass filter isolates just the two doubly ionized oxygen lines (496 and 501nm) emitted by diffuse, planetary and extremely faint nebulae.

ONLY £44.00  -  £59.99

OVL Oxygen III Narrowband Filter


This high quality UHC filter is a narrowband nebula filter for enhancing globular and planetary deep sky objects. It blocks out a certain band of light to enhance contrast and detail on deep sky objects.

ONLY £74.99

Antares UHC Narrowband Nebula Filter 1.25''


The Astronomik H-beta is a filter for visual observation, in particular with instruments of larger aperture. Available in 1.25" and 2" fits.

ONLY £89.00  -  £179.00

Astronomik H-Beta Filters


CCD imagers will find that Baader's new Narrowband 7nm H-Alpha pass filter delivers the absolute highest contrast deep sky images of H-II regions, all with the shortest exposures possible.

ONLY £102.00  -  £164.00

Baader H-Alpha 7nm CCD Narrowband Filters


The ZWO Duo-Band Filter is a dual narrowband filter primarily aimed at complementing our range of colour ASI cameras and offers an economical entry into the world of narrowband imaging and can also offer a practical solution to imaging in light polluted urban areas.

ONLY £104.00

ZWO Duo-Band Dual Narrowband Filter 1.25''


This H-alpha Filter is suitable for imaging of Hydrogen nebulas from observation sites with light pollution and from dark sites as well. The FWHm of 12nm is optimized for typical DSLR cameras with CMOS sensors and CCD cameras with a normal/high dark current.

ONLY £115.00

Astronomik H-Alpha 12nm CCD Filter 1.25''


This Astronomik OIII-CCD Filter is suitable for imaging of OIII nebulas from observation sites with light pollution and from dark sites as well.

ONLY £115.00

Astronomik OIII 12nm CCD Filter 1.25''


This SII Filter is suitable for imaging of SII-regions from observation sites with light pollution and from dark sites as well. Contrast is massively increased.

ONLY £115.00

Astronomik SII 12nm CCD Filter 1.25''


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

ONLY £125.00

Optolong OIII 6.5nm Narrowband Deep Sky Imaging Filter 1.25''

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