Hello I would like to report a strange problem I have encountered with SBIG ST2000XM CCD camera. After taking some light frames with L and Ha filters of the star Vega, you can see several side effects on the stars. Also there's a lot of uneven illumination in the background. This problem came suddenly after using the camera for many years without any issues. I have replaced the camera desiccant with new one but the problem still remains. Any ideas how to resolve this problem are welcomed. Thank you Konstantinos
We can't tell much from JPGs. Can you please provide FIT images? e.g. we need to know whether the cooler was on. The Vega-lum2.jpg looks like it was off; yet lum3 looks like moisture somewhere in the optical train. What was the outside temperature/dewpoint?
Hi, sorry for late reply. I have solved this problem after reinstalling sbig camera drivers. Thank you for your support
