Alstar 2 inch Moon / Skyglow Filter - Moon Filter for 2 inch Eyepiece Accessory, Telescope, Great for Full Moon Observing
Product Description
Alstar 2 inch Moon / Skyglow Filter - Moon Filter for 2 inch Eyepiece Accessory, Telescope, Great for Full Moon Observing
- By rejecting most other light this will cause certain objects to appear more clearly against a blacker background of space
- Very high light transmission exceeding ninety five percent of that light some the portions of the spectrum; while blocking unwanted skyglow and many street light emissions
- It enhances contrast of all reddish details and so this filter can also be used for planetary viewing; as well as of blue details
- The filter is made with a special Neodymium glass that effectively filters out selective wavelengths of low pressure sodium and other man made sources typically used in street lighting
- The Moon and Skyglow is a multi bandpass filter transmitting a high percentage of light in the visual spectrum
Technical Specifications
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