Astronomy Filters

20 Matching Products Displaying Page 1 of 2

Celestron Moon Filter
4.5

Find out more about the Celestron Moon Filter

Celestron's Moon Filter is an economical eyepiece filter for reducing the brightness of the moon and improving contrast, so greater detail can be observed on the lunar surface. The clear aperture is 21mm and the transmission is about 18%. Screws on to the filter thread of any Celestron, or other manufacturer's 1.25 inch eyepiece.

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£12.00

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Celestron Moon Filter

Sky-Watcher Moon Filter
4.5

Find out more about the Sky-Watcher Moon Filter

Improves contrast and reduces glare on Lunar images. Item screws into 1.25" threaded eyepieces.

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£9.99

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Sky-Watcher Moon Filter

Optical Vision 1.25 Inch O-III Narrowband Filter
4.0

Find out more about the Optical Vision 1.25 Inch O-III Narrowband Filter

The Sky-Watcher 1.25 Inch O-III Narrowband Filter narrowband filter is specially designed for the observation of gas and planetary nebulae. It distinguishes different contrasts of the wavelengths of light that pass through, giving ideal conditions for the observation of faint super nova remnants and planetary remnants.

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£44.99

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Optical Vision 1.25 Inch O-III Narrowband Filter

Optical Vision 1.25 Inch Light Pollution Filter
5.0

Find out more about the Optical Vision 1.25 Inch Light Pollution Filter

The Sky-Watcher 1.25 Inch Light Pollution Filter is a contrast-enhancing anodised aluminium, optical glass filter designed to block out the wavelengths of light emitted by mercury-vapour light and other common causes of light pollution, whilst providing higher transmission at critical hydrogen-alpha and hydrogen-beta lines than competing filters. Bright,

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£21.99

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Optical Vision 1.25 Inch Light Pollution Filter

Baader Contrast Booster Filter

Find out more about the Baader Contrast Booster Filter

The Baader contrast filter booster will help sharpen up your stellar images, boosting contrast, emphasising lunar, Martian and Jovian surface details and cutting down on visible light pollution. The filter is especially useful in economy refractor telescopes, where it can aid in the correction of colour aberration.

Special OrderFree delivery available
£69.00

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Baader Contrast Booster Filter

Baader Neodymium + IR Cut-Off (Moon + Skyglow)

Find out more about the Baader Neodymium + IR Cut-Off (Moon + Skyglow)

The Baader Neodymium + IR Cut-Off (Moon + Skyglow) filter drastically improves contrast for all reflector telescopes, without loss of brightness. The filter greatly intensifies surface details on Mars, Jupiter and Moon and enhances many deep sky galaxies and nebulae against the background sky. The Neodymium element greatly reduces glare and unwanted street

Special OrderFree delivery available
£69.00

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Baader Neodymium + IR Cut-Off (Moon + Skyglow)

Optical Vision 2 Inch Light Pollution Filter
5.0

Find out more about the Optical Vision 2 Inch Light Pollution Filter

The Sky-Watcher 2 Inch Light Pollution Filter is a contrast-enhancing anodised aluminium, optical glass filter designed to block out the wavelengths of light emitted by mercury-vapour light and other common causes of light pollution, whilst providing higher transmission at critical hydrogen-alpha and hydrogen-beta lines than competing filters. Bright, light-polluted

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£31.99

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Optical Vision 2 Inch Light Pollution Filter

Baader UHC-S / L-Booster Filter

Find out more about the Baader UHC-S / L-Booster Filter

This Baader UHC-S / L-Booster Filter has been produced to aid in deep sky viewing. Extraneous light is reduced and contrast is upped; increasing the visibility of nebulae and stars.

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£70.00

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Baader UHC-S / L-Booster Filter

Optical Vision 1.25 Inch Variable Polarising Filter

Find out more about the Optical Vision 1.25 Inch Variable Polarising Filter

The Optical Vision 1.25 Inch Variable Polarising Filter is a high quality anodised aluminium, optical glass variable polarising filter designed to reduce the amount of light entering your eyepiece. You can progressively dim the view when observing a bright object, such as the Moon or certain planets, to a level according to your needs, whilst increasing

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£24.99RRP £29.99

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Optical Vision 1.25 Inch Variable Polarising Filter

Baader Semi APO Filter

Find out more about the Baader Semi APO Filter

This Baader semi-APO filter is for use with achromatic optics and is designed to cut down on the chromatic aberration and fringe aberration of achromat lenses; presenting a clearer, crisper image.

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£70.00

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Baader Semi APO Filter

Baader 6 Colour Filter Set

Find out more about the Baader 6 Colour Filter Set

The 1.25" Baader 6 Colour Filter Set comprises three longpass and three genuine bandpass filters, which act similar to a nebula filter, so that only a small portion of the visual spectrum is transmitted to emphasise certain planetary surface detail. All filters have standard 31.7mm eyepiece filter threads. The set consists of the following colours: dark

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£215.00

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Baader 6 Colour Filter Set

Baader OIII Filter

Find out more about the Baader OIII Filter

The 1.25" Baader OIII Filter is specially designed for the observing the night sky and offers high contrast views of gas and planetary nebulae that are emitting light from narrow OIII wavelengths. For many objects, the Baader O-III reveals a level of intricate detail that rivals the best deep sky photographs, the Baader O-III perfectly isolates the two

Special OrderSave £7Free delivery available
£83.00RRP £90.00

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Baader OIII Filter