Tag : inch

Sky-watcher 2 Inch Light Pollution Filter by Sky-Watcher

Sky-Watcher 2 Inch Light Pollution FilterSky-watcher 2 Inch Light Pollution Filter
The Sky-Watcher 2 Inch Light Pollution Filter is a contrast-enhancing anodized 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 skies appear much darker, and the contrast between object and sky is improved significantly. This contrast-enhancement effect is particularly apparent on nebulae. Unlike stars, emission nebulae give off light in a very narrow range of wavelengths.

Price: £29.99

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Sky-watcher 1.25 Inch Light Pollution Filter by Sky-Watcher

Sky-Watcher 1.25 Inch Light Pollution FilterSky-watcher 1.25 Inch Light Pollution Filter
The Sky-Watcher 1.25 Inch Light Pollution Filter is a contrast-enhancing anodized 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 skies appear much darker, and the contrast between object and sky is improved significantly. This contrast-enhancement effect is particularly apparent on nebulae. Unlike stars, emission nebulae give off light in a very narrow range of wavelengths.

Price: £19.99

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Sky-watcher 2 Inch Ultra High Contrast (uhc) Filter by Sky-Watcher

Sky-Watcher 2 Inch Ultra High Contrast (UHC) FilterSky-watcher 2 Inch Ultra High Contrast (uhc) Filter
The Sky-Watcher 2 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 owing to its greater light transmission than the O-III, yet still suppresses light pollution well. Supplied with storage case.

Price: £69.99

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Sky-watcher 1.25 Inch Ultra High Contrast (uhc) Filter by Sky-Watcher

Sky-Watcher 1.25 Inch Ultra High Contrast (UHC) FilterSky-watcher 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 owing to its greater light transmission than the O-III, yet still suppresses light pollution well. Supplied with storage case.

Price: £42.99

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Sky-watcher 2 Inch O-iii Narrowband Filter by Sky-Watcher

Sky-Watcher 2 Inch O-III Narrowband FilterSky-watcher 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 faint super nova remnants and planetary remnants.

Price: £69.99

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