Light pollution greatly reduces the contrast of faint objects in the eyepiece of your telescope, or it will fog the film in your camera. Light from the object is still reaching your eye but it is mixed with light pollution which causes problems. To get the best view of the object you must filter out this light pollution using a "light pollution filter". Parks Optical Broadband Light Pollution Blocking filters utilize state-of-the-art multi-layer coating technology to selectively filter out the mercury vapour and sodium light pollution. These filters are of tremendous value in the city since they block man-made light and in dark sky locations they block neutral oxygen transmission (natural sky glow). Ideal for visual or photographic camera use. Threaded to fit eyepieces and camera adapters.
This one is in as new condition and comes complete with box they normally sell for around £125.00 (venturescopes)
PLEASE REMEMBER THIS ONE IS THE BIGGER SCT FILTER THAT SCREWS ONTO THE BACK OF THE OTA OF MOST SCT'S
PRICE FOR THIS IS ONLY £80.00
I also accept Paypal as payment