Optical Vision Light Pollution Filter For Telescope 2 inch 20199
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Optical Vision Light Pollution Filter For Telescope 2 inch 20199
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Description
Description
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 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.
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Details:Optical Vision Light Pollution Filter For Telescope 2 inch 20199
- About Us
- Items for Sale
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- About
- Latest
Optical Vision Light Pollution Filter For Telescope 2 inch 20199
Trusted Seller
View Our Feedback
One of eBay's most reputable sellers
Consistently delivers outstanding customer service
Ask a Question
Description
Description
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 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.
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Browse Range
Cameras & n
Price now:
From
ÂŁ33.99
To
ÂŁ39.99
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Product Description
- About Us
- Items for Sale
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- Latest
Optical Vision Light Pollution Filter For Telescope 2 inch 20199
Trusted Seller
View Our Feedback
One of eBay's most reputable sellers
Consistently delivers outstanding customer service
Ask a Question
Description
Description
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 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.
View More Items
Browse Range
Cameras & n
Product Specifications
General | |
|---|---|
Color | light |
Material | aluminium/alpha |
Size | 2 |
Weight | 0 |
Brand | Sky-Watcher |
type | planetary |
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