1.25 31.7mm Light Pollution Blue Moon & Skyglow Filter for Astronomy Telescope Eyepiece

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Description
The 1.25Inch Moon & Skyglow is a multi-band pass filter transmitting a high percentage of light in the visual spectrum. The filter enhances contrast when observing brighter objects including the moon and planets. It also will suppress sky glow from artificial lighting and background glow reflected when the Moon is up. The filter has a mild effect of darkening the background of the night sky so that the fainter objects are more clearly seen contrasted against the blackness of space. The filter effectively filters out selective wavelengths of low-pressure sodium and other man-made sources typically used in street lighting. It enhances the views of deep-sky objects by increasing the contrast of these objects against the background sky. While nebula filters transmit only a few select wavelengths corresponding to various atomic lines, this filter transmits a large portion of the continuous spectrum while blocking a few select lines of the more common man-made light. Neodymium provides a unique, selective, blocking feature in that this element greatly reduces glare without reducing important color and brightness variations.
Features
1.100% brand new
2.1.25′ Moon and Skyglow Filter is Skyglow is a multi-band pass filter transmitting a high percentage of light in the visual spectrum
3.1.25′ Skyglow & Moon filter for telescope eyepiece – Cuts light pollution
4.Moon & Skyglow 1.25′ Moon filter for Telescope Eyepieces
5.Light Pollution & Moon Filter 1.25′ Inch Astronomy Telescope Skyglow Eyepiece
6.Premium Quality Metal Rim & Thread & Blue Glass Lens
7.The Moon & Skyglow is a multi-band pass filter transmitting a high percentage of light in the visual spectrum. The filter enhances contrast when observing brighter objects including the moon and planets
8.The filter has a mild effect of darkening the background of the night sky so that the fainter objects are more clearly seen contrasted against the blackness of space
9.The filter effectively filters out selective wavelengths of low-pressure sodium and other man-made sources typically used in street lighting. Although it is not a nebula filter, it enhances the views of deep-sky objects by increasing the contrast of these objects against the background sky
10.The filter will fit all standard sized 1.25′ eyepieces and accessories. It is mounted in a nicely anodized housing and is threaded on both sides for stacking with other filters if necessary
11.Usage:The filter thread after thread eyepieces, rotate the filter into the eyepiece can be used
Specification
1.Brand:SVBONY
2.Lens material:pure optical glass lens
3.Sleeve material:Metal
4.Caliber:1.25′ / 31.7mm
5.Total item length (including external thread):0.39inch / 10mm
6.Total item length (excluding external thread):0.28inch / 7mm
7.Clear aperture:0.94inch / 24mm
8.Weight:0.25oz / 7g
Package included
1 x SVBONY Moon & Sky Glow Filter