To help combat light pollution celestron offer a rasa light pollution imaging filter for the rasa 8 and rasa 11 scopes which has been developed to block the light pollution from some common sources including high and low pressure sodium streetlights as well as natural airglow.
Celestron light pollution filter.
This filter blocks specific areas of the spectrum instead of wide regions to maintain image brightness and.
The perfect filter for viewing nebula from light polluted skies or for boosting the contrast of nebula from dark sky sites.
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 vapour streetlights mercury vapour streetlights and natural airglow caused by oxygen in the atmosphere.
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.
A quality light pollution filter will allow the important colors and light emitted by your astrophotography subject to reach the camera sensor without the nasty brown glow of a washed out sky.
The design of the filter includes layers that block specific bandpass lines of the visible spectrum.
No matter which camera you use this filter s generous 68 mm clear aperture allows it to easily accommodate today s largest sensors.
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.