Burgess Optical Broadband Nebula Filter.

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.

Available from stock.

Price - £27.00

The Astronomy Shop

1 Tone Hill. Wellington

Somerset TA21 0AU

United Kingdom

Telephone: +44 (0)1823 665510