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Asi1600 sensor defect

Posted: Wed Jan 15, 2020 12:49 pm
by Bdm1010
I’ve been getting weird artifacts in my images. its circular with a tail. i thought it was my filters originally bc it was very prominent in the blue filter but realized it appears in all the filters. it does not get corrected with flats. i took some flats without the corrector or filters and it still appears. i rotated the camera 90 degrees and it was still in the same orientation. i looked through the sensor window and noticed the same shape artifact is on the actual sensor. I cleaned the sensor per the zwo instructions and microwaved the tablets. It seams this smudge or condensation or whatever it is is sandwiched between the sensor and the glass covering the sensor, not the sensor window glass. attached is a stack of 25 flats on the blue filter which is the most prominent. Also attached are images of the cameras sensor where you can see the same shaped thing as is in the flats. Any suggestions on a fix? I have email zwo support and they were responsive at first. They had me seen them an imaging session with all the calibration frames so they could try and calibrate this out. That was over a week ago and I have heard nothing from them. I’ve emailed asking for an update with no response.

Re: Asi1600 sensor defect

Posted: Wed Feb 12, 2020 3:45 pm
by Bdm1010
Bumping this up. Can anyone at zwo help out? I was in contact with support from zwo who told me it should calibrate out. They asked me to send them an imaging run with cal files which I did and I haven’t heard back. I know they were closed for new year and the virus outbreak but have noticed forum activity from zwo recently. I have had members of my astronomy club try and calibrate as well as a pixinsight group and they have been unsuccessful. What do I need to do to send the camera back for repair? It was purchased from ZWO and is under warranty still.

Re: Asi1600 sensor defect

Posted: Thu Feb 20, 2020 12:18 pm
by Bdm1010
Bump

Re: Asi1600 sensor defect

Posted: Fri Feb 21, 2020 8:57 am
by Katherine.Tsai
Theoretically this should be calibtrated out.

Re: Asi1600 sensor defect

Posted: Fri Feb 21, 2020 1:44 pm
by Bdm1010
Were you able to calibrate it out with the imaging files I emailed you in January? I’ve had my astrophotography club try as well as a pixinsight group and no one has been able to calibrate it out? The sensor seems to have a permanent defect which can’t be cleaned or removed. I’m unable to use this camera to produce images at this time. Will the zwo warranty cover repairs?