Language / kalba:  lithuanian  english  
Nemokamas pristatymas
visiems užsakymams virš 1500 Lt

Orion SkyGlow Broadband Light-Pollution 2" filtras

€75.00



  • 0 Vienetų sandėlyje
  • Gamintojas: Orion (USA)

An Effective Weapon for Combatting Bright Skies, Bad Contrast

Light pollution is waging war on amateur astronomy. But don’t surrender—fight back with an Orion SkyGlow broadband filter!
It’s an advanced multilayer “interference” filter that blocks the most common wavelengths of light pollution while passing desirable wavelengths with very little attenuation, yielding dramatically better deep-sky views.

SkyGlow filters feature improved blocking of mercury-vapor light and 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.

Enhances All Objects

This contrast-enhancement effect is particularly apparent on nebulas. Unlike stars, emission nebulas give off light in a very narrow range of wavelengths. SkyGlow filters allow maximum transmission of the important wavelengths of hydrogen-alpha, hydrogen-beta, and doubly ionized oxygen-the ones most commonly emitted by nebulas. Views of galaxies and star clusters are also enhanced, although not as much.

Why suffer under light-polluted skies any longer? Order your SkyGlow light-pollution filter today. It really works!

All filters come with the instruction manuals and their individual transmission characteristics.



Ši prekė į katalogą buvo įtraukta Penktadienis 04 rugsėjo, 2009.