Atik Cameras Forum

General => Equipment => Topic started by: Singlin on October 05, 2016, 09:05:15 am

Title: Atik 383 glow
Post by: Singlin on October 05, 2016, 09:05:15 am
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
Title: Re: Atik 383 glow
Post by: Steve on October 05, 2016, 03:15:35 pm
Hello,

Are you subtracting bias or dark's from your images?  Are these the same for both the O2 and HA?
Best
Steve
Title: Re: Atik 383 glow
Post by: Singlin on October 05, 2016, 04:49:18 pm
This is a 20 min sub no subtraction.
The OIII 20 min sub is perfect.