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My effort from Derry last night - once I remembered to remove the cover from the field flattener. Doh.
I know the North America Nebula is done to death, but this is my first time imaging it, and also my first time trying the Triad filter with my Nikon. I'm in the middle of the city but I was able to take 5 min subs! I processed in PixInsight, but didn't even have to do background extraction. I used photometric colour calibration to restore natural colour and then just did a bit of mild tinkering. I'm impressed by the Triad filter on my first try.
Comments welcome - maybe I should try a star mask and try to bring out star colours?
22 X 5 min subs - 1hr 50min integration
PixInsight for calibration / registration / processing
Mount - Vixen AXD2
Scope - TEC 180FL
Camera - Nikon D750
Two clear nights running to try out my new Samyang 135mm with the 428ex.
This is 24x300s processed in PI: DBEx2, MaskedStretch, HDRM + LHE.
I know this combination produces significant undersampling but that aside I am very pleased with the widefield capability now available with the 428ex.
Thank you for looking.
Here is a telephoto version of these classics that are still visible at my latitude for a few hours. I gathered the Ha data 2 April with my Canon 300mm f/4 and a 12nm clip filter (unmodded Canon 60D, 6 x 25 min) to which I added RGB data from 11 November gathered with my Samyang 135mm f/2 (169 x 1 min). All @ ISO1600. So totally 5.3 hours of data.
I think I like the colours but some may think they are a bit over the top. Maybe I should pull back on saturation?
C & S most welcome!