Eyepiece Accessories and Filters

85 Matching Products Displaying Page 1 of 8

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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£18.00RRP £19.99

1x Optical Vision 1.25 Inch Light Pollution Filter

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Optical Vision 1.25 Inch Light Pollution Filter

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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£10.00RRP £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

Sky-Watcher 1.25 Inch Deluxe Di-Electric Coated 90 degree Diagonal

Find out more about the Sky-Watcher 1.25 Inch Deluxe Di-Electric Coated 90 degree Diagonal

The mirrors inside these diagonals have undergone a special high-reflectivity multi-coating process, allowing them to reflect 99% of the precious gathered starlight, providing exceptional brightness and contrast (Standard diagonals typically reflect 90-95% of light).

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£69.99RRP £79.99

1x Sky-Watcher 1.25 Inch Deluxe Di-Electric Coated 90 degree Diagonal

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Sky-Watcher 1.25 Inch Deluxe Di-Electric Coated 90 degree Diagonal

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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£57.00RRP £67.00

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Baader Semi APO Filter

Sky-Watcher Lunar/Planetary Filter Set

Find out more about the Sky-Watcher Lunar/Planetary Filter Set

Enhance your viewing of the planets and the moon. Even a 3/4 moon can reflect enough light to strain the eyes, so the use of a moon filter helps to reduce the incoming light and will even improve the contrast. The coloured filters are matched to help improve the viewing of a number of the Planets, and even comets.

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£30.00

1x Sky-Watcher Lunar/Planetary Filter Set

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Sky-Watcher Lunar/Planetary Filter Set

Altair Astro 1.25 Inch Dielectric Star Diagonal
5.0

Find out more about the Altair Astro 1.25 Inch Dielectric Star Diagonal

Whether you're looking to build a telescope system from scratch, or wish to upgrade your "kit" Star Diagonal, the Altair Astro 1.25 inch Dielectric Star Diagonal offers 99% reflectivity due to its multi-layer dielectric coatings, and extreme durability thanks to its CNC machined aluminium casing. The barrel is threaded for attaching additional filters,

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£49.99

1x Altair Astro 1.25 Inch Dielectric Star Diagonal

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Altair Astro 1.25 Inch Dielectric Star Diagonal

Optical Vision Laser Collimator
4.5

Find out more about the Optical Vision Laser Collimator

This 1mW red laser collimating device boasts some of the best and most practical functions collimators can offer. A large display window allows the user to clearly see the face of the device. Whilst most other brand name collimators only have one setting, this has seven adjustable brightness levels. The 1.25" laser collimator comes complete with a removable

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£44.99

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Optical Vision Laser Collimator

Sky-Watcher 45 degree Erecting Prism
5.0

Find out more about the Sky-Watcher 45 degree Erecting Prism

Perfect for both astonomical and terrestrial observing, these fully-coated diagonals offer correctly oriented images with excellent sharpness and contrasts. Designed for 1.25 Inch/31.7mm focusers and eyepieces.

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£39.99

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Sky-Watcher 45 degree Erecting Prism

Buy used from £29.99
Altair Astro Premium Neutral Density Moon Filter

Find out more about the Altair Astro Premium Neutral Density Moon Filter

The Altair Astro Premium Neutral Density Moon filter blocks 25% of the light passing through it removing excess glare from lunar images helping to bring out finer detail. Threaded to fit 1.25 inch eyepiece barrels.

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£15.00

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Altair Astro Premium Neutral Density Moon Filter

Altair Astro 2 Inch Quartz Dielectric Diagonal
5.0

Find out more about the Altair Astro 2 Inch Quartz Dielectric Diagonal

Whether you're looking to build a telescope system from scratch, or wish to upgrade your "kit" Star Diagonal, the Altair Astro 2 inch Quartz Dielectric Diagonal offers 99% reflectivity due to its multi-layer dielectric coatings, and extreme durability thanks to its CNC machined aluminium casing. It has a non-marring brass compression ring to prevent damage

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£79.99

1x Altair Astro 2 Inch Quartz Dielectric Diagonal

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Altair Astro 2 Inch Quartz Dielectric Diagonal

Sky-Watcher 90 degree Erecting Prism

Find out more about the Sky-Watcher 90 degree Erecting Prism

90 degree Erecting Prism designed to fit 1.25/31.7mm focusers and eyepieces.Designed to give a more comfortable viewing position, and to correct upside down images.

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£34.00RRP £39.99

1x Sky-Watcher 90 degree Erecting Prism

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Sky-Watcher 90 degree Erecting Prism

Buy used from £19.99