Optical Vision 1.25 Inch Light Pollution Filter
Optical Vision 1.25 Inch Light Pollution Filter thumbnail

EAN 5055534800317

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Optical Vision 1.25 Inch Light Pollution Filter

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Barcode Formats: EAN-13 5055534800317
Category: Toys > Educational Toys > Astronomy Toys & Models
Manufacturer: Sky-Watcher
Description:   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, 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.
Attributes:
  • MPN: 20198
  • Model: Planetary/Nebular
  • Color: n/a
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