Hi all
Here is a image of the helix nebula taken last night, 4x10 mins (40 mins total) no nebula filter used. Its longer then the 30 mins used with the triffid nebula image I took , see
http://www.iceinspace.com.au/forum/s...ad.php?t=12007
I expected to get a much deeper image but it didnt happen, and this was despite the fact that the Triffid was well past Zenith, but the helix was very near the zenith and thus better placed for imaging. So it seems that some objects do better without filtering then others. The helix definately requires the UHCS filter for best results.
Scott