I do have an ASI071 for some weeks.
Yesterday the following occurred:(I have not noticed this before but my usage of the camera was very, very limited in the last weeks)
When cooled down to minuses temperatures, streaks and smears starts to appear as soon as the camera sensor temperature dropped to minus degrees.
When switching off the cooler and the sensor reaches again positive Celsius temperatures, the streaks vanished.
Cooling down-they start again. the smears are not random but have always the same patterns...seems like wiping smears ??
This occurs whether the window dew heater is switched on or off-but I recognized there is a dew on the window from the inside.
Please see attached picture, unstretched and stretched, no filter used.
What can I do ?
Thank you very much for some hints.
Edited by Christian-UAE, 04 March 2017 - 01:56 AM.