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Image of Optical Vision 1.25 Inch Clear Sky Filter
 

Optical Vision 1.25 Inch Clear Sky Filter

This filter blocks night glow and airglow, sodium and mercury emissions (but not UV or IV). This versatile broadband filter is suitable for all objects, whether you are viewing them with your eyes, or capturing them with your camera. Suitable for visual...


 
Image of Optical Vision 1.25 Inch Deep Sky Filter
 

Optical Vision 1.25 Inch Deep Sky Filter

This filter blocks low and high pressure mercury and sodium vapour lamplight and neon light whilst letting the rest of the visible spectrum through. Excellent for viewing all deep sky objects under the urban sky. Suitable for visual observations and for...


 
Image of Optical Vision 1.25 Inch Hydrogen-Alpha CCD Filter
 

Optical Vision 1.25 Inch Hydrogen-Alpha CCD Filter

This long-pass filter limits transmission of light with wavelengths longer than 650nm. Whilst suppressing all other polluting lights, the filter allows you to observe emission nebulae with greatly enhanced contrast. Ideal for observing emission nebulae...


 
Image of Optical Vision 1.25 Inch Light Pollution Filter
 

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...


 
Image of Optical Vision 1.25 Inch L-RGB CCD Filter Set
 

Optical Vision 1.25 Inch L-RGB CCD Filter Set

Special clearance price - Save £5, Was £115! Hurry whilst stock lasts Designed for CCD astrophotography, the set includes Luminance-IR, Red, Green, and Blue CCD filters. The filters are resistant to humidity and scratching and set into a durable aluminium...

£110.00
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Image of Optical Vision 1.25 Inch O-III Narrowband Filter
 

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...


 
Image of Optical Vision 1.25 Inch Ultra High Contrast (UHC) Filter
 

Optical Vision 1.25 Inch Ultra High Contrast (UHC) Filter

The Sky-Watcher 1.25 Inch Ultra High Contrast (UHC) Filter is the best all-around dark-sky nebula filter. This filter permits superb views of objects like the Orion, Lagoon, Swan and other extended nebulae. It performs well in smaller aperture instruments...


 
Image of Optical Vision 1.25 Inch UV/IR Cut-Off Filter
 

Optical Vision 1.25 Inch UV/IR Cut-Off Filter

This UV/IR cut-off filter blocks UV and IR rays to maintain the colour temperature you want, eliminating false colour fringes around bright stars. Offers a 99.9% light transmission rate for bright and clear images. Suitable for visual observations and...


 
Image of Optical Vision 2 Inch Light Pollution Filter
 

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...


 
Image of Optical Vision 2 Inch O-III Narrowband Filter
 

Optical Vision 2 Inch O-III Narrowband Filter

The Sky-Watcher 2 Inch O-III 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...