Moon Filter, 1.25" Telescope Filter, Optical Glass, Aluminum Housing, for Lunar Planet Observation, Increase Contrast, Reduce Light Pollution and Glare, Terrestrial Viewing Over Sand or Snow

SVBONY 1.25" moon and skylow 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

Mild effect of darkening background of the night sky:
So that the fainter objects is more clearly seen contrasted against the blackness of space

Effectively filters out stray light:
Filtering 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

The 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:
1.25" skyglow and moon filter for telescope eyepiece cutting light pollution

Effectively filters out selective wavelengths of low-pressure sodium and other man-made sources

Premium quality metal rim;thread and blue glass lens

Fits all standard sized 1.25" eyepieces and accessories

Usage:the filter thread after thread eyepieces;rotate the filter into the eyepiece

Specification:
Lens material: pure optical glass lens
Sleeve material: metal
Caliber: 1.25"/31.7mm
Total item length (including external thread): 0.39"/ 10mm
Total item length (excluding external thread): 0.28"/ 7mm
Clear aperture: 0.94"/ 24mm
Filter thread: M28.5x0.6

Package include:
1 x SVBONY moon and sky glow filter