Johnny010 wrote in post #17665221
So, I live in a pretty bad part of the UK for light pollution. People have said filters such as these:
http://www.wexphotographic.com …n-filter/p1525548#details
really help. Are they worth the investment? Ideally the "best" places for me are a 2 hour drive away...which although do-able, they still can suffer "some" light pollution from the cities around 50km away...
Are you tracking during exposure? If so then filters can help. I own 3 astronomik filters 6nm Ha, 12nm oiii and cls ccd. All eos clip variants. Expensive? Yes about $700 in filters but they suit a specific purpose. The filter you list is an all around filter for visual use, meaning it is for an eyepiece and not very aggressive. Ida's lpv4 and cls ccd type filters are imaging filters which filter light with stronger band pass curves. Even then, processing can be difficult because of white balance and background gradients, but once you get it down it's all cake. My biggest problem that I did not realize until recent is that I began imaging before true dark, which is at like 10:00 mid summer... This caused me to take a few hours worth of bad data. In light polluted areas, like next door to wallmart, I was able to do a 60s exposure at ISO 1600 f2.8 with the cls ccd filter in and 15s without. It makes a difference. With the Ha filter I could image directly over wallmart and do 600s exposures.
I have not tried shooting with the Lp filter where I live now, but the Lp is not nearly as bad as my old place. I have a dark site about an her away that I Use