Does someone know if this will work:
http://www.cercisastro.com/DC%20Adapter.html ? for DC to DC converting power supply for T2i
And will a CLS Astronomik light pollution filter work well for deep sky or is a Lumicon deep sky (SCT thread) filter better?
And should a person use multiple (light pollution) filters?
PS: it's good to be scientific and take notes. Of course that way we can compare and diagnose problems better.