Celestron Light Pollution Filter Review

The advanced technology coatings enable the filter to achieve an outstanding transmission of over 97 across the entire bandpass with total blockage of prominent light pollution lines.

Celestron light pollution filter review.

Light pollution filters are typically 1 25 or 2 round filters that screw into your telescope to reduce the effects of light pollution on your viewing or imaging. At 305 square miles that is more than 820 street lamps per square mile. If you think your town has a lot of street lights new york city operates more than 250 000 of the dark sky fighters many unshielded. Lets see if this light pollution filter review helps.

A light pollution telescope filter is probably the most generic of these types of filters and is designed to block out certain wavelengths of light such as the light being created by sodium vapor mercury fluorescent and other man made sources of light that are typically found in outdoor lighting. Light pollution comes from any artificial light be it on a suburban porch or a city street lamp. The light pollution imaging lpi filter for the 8 rasa blocks light from some of the most common sources of light pollution between 400 700nm i e the visible spectrum including high and low pressure sodium vapor streetlights mercury vapor streetlights and natural airglow caused by oxygen in the atmosphere. The design of the filter includes layers that block specific bandpass lines of the visible spectrum.

The light pollution imaging lpi filter for the 8 rasa blocks light from some of the most common sources of light pollution between 400 700nm i e the visible spectrum including high and low pressure sodium vapor streetlights mercury vapor streetlights and natural airglow caused by oxygen in the atmosphere. What is a light pollution filter. These can be screwed on to a camera adapter eyepiece or onto a diagonal.