A general use filter for improving night sky viewing clarity, the Moon Sky Glow Filter from MrStarGuy is intended for use with smaller telescopes featuring a 2"-diameter eyepiece. This all-around filter removes key wavelengths known to cause visual light scatter in order to render nebulae, galaxies, and star clusters with greater contrast and brightness. Ideal for use in light-polluted areas, this filter also helps to improve sharpness for clearer viewing of deep sky objects.
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MrStarGuy 2" Moon Sky Glow Filter

Key Features
- Enhances General Night Sky Viewing
- Blocks Light Pollution Wavelengths
- Ideal for Smaller Telescopes
- Improves Viewing Sharpness and Clarity
A general use filter for improving night sky viewing clarity, the Moon Sky Glow Filter from MrStarGuy is intended for use with smaller telescopes featuring a 2"-diameter eyepiece. This all-around filter removes key wavelengths known to cause visual light scatter in order to render nebulae, galaxies, and star clusters with greater contrast and brightness. Ideal for use in light-polluted areas, this filter also helps to improve sharpness for clearer viewing of deep sky objects.
MrStarGuy QMS404Y Overview
MrStarGuy QMS404Y Specs
Size | 2" / 50.8 mm (diameter) |
Transmittance | H-Beta (486.1 nm): Approx. 95% O III (495.9 nm): Approx. 84% O III (500.7 nm): Approx. 75% H-Alpha (656.3 nm): Approx. 98% |
Construction | Not specified by manufacturer |
Packaging Info
Box Dimensions (LxWxH) | 6 x 6 x 1" |
MrStarGuy QMS404Y Reviews
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