1.25 inches Blue Moon Filter for Astronomy Telescope Eyepiece Lens

Description

Product description
Size:1.25 inch
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
1.25"
moon and sky glow filter