Burgess Optical Broadband Nebula Filter

Burgess Optical Broadband Nebula Filter.

New Broadband Nebula Filrer From Burgess Optical. 

The Burgess Optical Broadband Nebula Filter uses the very latest in optical filtering techniques to produce a fine light pollution filter. The filter element is a material that has its passband precisely controlled through excitation by a laser. The material is then laser-cut and placed into a filter holder, resulting in a filter that blocks light at wavelengths typically
found in outdoor lighting systems

The Burgess Optical Broadband Nebula Filter makes a fine light pollution filter that passes a very high percentage of light originating from stellar sources.The filter is threaded to accept another filter or other 1-1/4" accessory. Attached to an eyepiece, the flter protrudes an additional 5/16" (7.2mm) beyond the end of the barrel.

You are buying from an authorized Burgess Optical UK dealer.