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ASI 183 with USB 2 creates extreme readout noise at one side

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  • Thank you received: 10

ASI 183 with USB 2 creates extreme readout noise at one side was created by Amin Sharaf

Hi, I did some tests with the ASI 183 MC Pro and found out that when connected at USB 2 it creates extreme readout noise at one side of the sensor.

As I would like to use the cam with StellarMate, I wonder if there are any settings I can change to eliminate this problem. I know the cam has 256 MB built in DDR memory actually to prevent readout noise due to slower connections.

I attach 2 photos, one with no noise at USB 3 and one with at USB 2. Both are 300 secs darks in the same environment taken at the same temperature
Skywatcher Newton 200/1000, Sharpstar 60ED, Canon Lenses
Skywatcherr EQ-6 R, AZ-GTI
StellarMate @ Raspberry Pi 3B+
ASI 183 MC Pro
ASI 290 MC guiding cam on APM 60 ImageMaster
Sesto Senso 2 Focuser + Astromechanics Canon Focuser
5 years 8 months ago #27684
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  • Posts: 39
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Replied by Andreas on topic ASI 183 with USB 2 creates extreme readout noise at one side

Hi,
this doesn't seem to be readoutnoise - it's ampglow. Why one shows it and the other not I can't say but it only should be exposuretime dependent.
Amp glow described in the CN imx183 testthread here: www.cloudynights.com/topic/599475-sony-i...d-asi-qhy-etc/page-2

Andreas
Last edit: 5 years 8 months ago by Andreas.
5 years 8 months ago #27758

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