Having seen another image of this nebula on the NOAO site, I thought it was time (already?) for a reprocessing of the data. My previous version was perhaps a tad overprocessed. I think I prefer it, but it is in no way as good as the NOAO image. But then again this was not taken using a 20" scope...
Here is the full plate version...
and cropped to around 12x12 arc min