Gosky 1.25 Inch Light Pollution Filter for Telescope

Light pollution filters are designed to improve the visibility of deep sky objects by blocking out the mercury vapor, sodium vapor, and other such emission lines from man-made or natural sources which contribute to light pollution. In turn, these filters allow a broad range of more useful wavelengths to pass to the eye or imaging sensor. By selectively screening out of some of the background sky glow, the contrast is increased and allows deep sky objects to stand out against the background. Also improves contrast on reddish planetary detail. Works well in telescopes of all apertures but is highly recommended for use on telescopes, where conventional filters swallow up too much light.

The filter will fit all standard sized 1.25" eyepieces and accessories. Can be threaded on both sides for stacking with other filters if necessary. It is mounted in a nicely anodized housing.Comes with sturdy plastic case-proect the eyepiece from dust and moisture. And it is available in two sizes, threaded to fit standard 1.25" astronomical eyepieces.

Specifications:
Type: Light Pollution filter
Main Dimension :1.25 inch
Weight: 1.05oz
Diametre :30mm
Package Include:
1 X Light Pollution filter
1 X Sturdy plastic case

• Improve the visibility of deep sky objects by blocking out the mercury vapor, sodium vapor, and other such emission lines from man-made or natural sources which contribute to light pollution
• Improves contrast on reddish planetary detail. Works well in telescopes of all apertures
• The filter will fit all standard sized 1.25" eyepieces and accessories. Can be threaded on both sides for stacking with other filters if necessary
• Comes with sturdy plastic case-proect the eyepiece from dust and moisture
• Mounted in a nicely anodized housing.

Improve the visibility of deep sky objects by blocking out the mercury vapor, sodium vapor, and other such emission lines from man-made or natural sources which contribute to light pollutionGosky