All filters are available in both 1 25 31 75mm and 2 50 8mm.
Best light pollution filter for galaxies.
If those filters qualified as a light pollution filter so would a piece of glass spray painted black blocking all light.
The only difference is size the same features still apply.
Best light pollution filter for astrophotography.
So here are the filters.
This filter has a proven track record of consistent results under city light pollution and one of the first light pollution filters i used with my camera.
In this post i ll share several examples of astrophotography filters being used on a variety of deep sky objects from the city.
Not everyone agrees that using a light pollution filter for your camera is the best way to do astrophotography but depending on where you live it might be the only way to go.
With the above in mind i will now walk you through the best filters from the best and most respected brands.
Most experienced observers agree that a narrowband filter filter one that passes h beta and oiii emission in the blue green while blocking h alpha and light from sodium and mercury vapor lamps is the best all around light pollution or nebula filter for visual observation.
However these nebula filters usually slightly reduce the brightness of most star clusters reflection nebulae and galaxies although in moderate light pollution a narrow band filter may still be of some use on these objects with larger apertures.