My first attempt at doing 5 minute exposures, for the most part, did not go too well. I think mainly because of transparency issues. I had ran 4 minute long exposures the night before and they came out great. Those posts will be up as soon as I get the data totals on target that I want. However, my data on the Horsehead Nebula, in my mind, came out alright!
Equipment & Statistics
Meade Series 6000 80mm Triplet APO
Sky Watcher EQ6-R Pro
Canon EOS Ra
Astro-Tech 0.8 Reducer/Flattener
ZWO 30mm f4 MiniScope (Guide)
ZWO ASI224mc (Guide)
PHD2 for guiding, APT for capturing, APP for stacking/processing, Photoshop/Topaz for final processing
31 x 300s
20 Dark Frames
50 Flat Frames
50 Dark Flat Frames
50 Bias Frames
The two images at the top are my final edit / process. The ones here above are my first. I am including them because in someways they may be better plus I really like how the negative image looks.