Atik Cameras Forum
General => Equipment => Topic started by: Singlin on October 05, 2016, 09:05:15 am
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Attached is a Ha sub of 20 minutes.
What is causing the light at the top of the sub ?.
My OII subs do not have this.
Regards,
Simon
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Hello,
Are you subtracting bias or dark's from your images? Are these the same for both the O2 and HA?
Best
Steve
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This is a 20 min sub no subtraction.
The OIII 20 min sub is perfect.