Quote:
Originally Posted by AlexN
Yeah binning 2x2 is recommended when Ha imaging with an OSC camera, as it definitely increases your SNR, which is always a good thing... I usually tried to avoid it through taking 20+ minute subs Bin 1x1, however some nights I did use binning to speed things up a bit... (20+ min subs bin 2x2 are usually awesome if your guiding will hold up) Are you using your self guiding through the 13nm filter or are you using an external guiding setup?
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Self guiding through the 7nm filter Alex ... just had to take longer guiding shots i.e. 2.5sec instead of my normal 0.5 sec - 1 sec ... seems to have worked ok ... gets slightly bigger guiding errors to correct ... also still getting smoke here from those fire mad farmers
Quote:
Originally Posted by Bassnut
Looking very nice Steve
Perhaps the 3 channel fits files wouldnt stack because they were RGB, converting to mono 1st might work. How did the G and B channels look, was there any signal there at all?, would be interesting if there was. If not, then extracting red only is obvious anyway.
OIII is smack in the middle of the green/blue filter crossover zone on a DSLR (ie poor response, depending on the curve steepness and gap between green and blue), would be interesting to see how that goes too.
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Hi Fred
Virtually nothing in the Green and Blue channels ... I don't have an OIII filter ... maybe in the future but I'll stick with Ha for now. Glad you like the pics.