Quote:
Originally Posted by stevous67
I'm sorry to hear your camera has failed again Paul. I can understand your disillusionment.
I have also had a less than acceptable results with my STXL with it going back to the USA many times. In fact I did not get an image from it in the first six months of ownership. Even now the camera produces what I feel as less than comparable results to that of my STL [which I also bought new]. My STL produces with ease very smooth results, whereas the STXL requires serious effort to reach the same level.
This issue may not be directly a fault of the manufacture, but an issue with the CCD. Overall, the STXL is a beautiful piece of work, and all other components work well. My two remaining issues is that the main chip has very noticeable vertical banding, which I am told is normal for the CCD used. This is my main disappointment with the camera, as it is normally present in short exposures [very bad banding], to long exposures [where the banding is less noticeable]. I have a attached typical example of a 240sec bin 2x2 exposure [totally raw sub, no calibration].
The second is that the self guide chip has obstruction, that shouldn't be there.
With extra work, I get good results, but I still wonder if these were fixed, would my results be better? But the matter has been closed by SBIG.
Good luck Paul, you'll be noticed because of your profile.
Steve
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Funnily enough I have seen exactly the same lines on my darks and light frames. It tends to be intermittent thing but it is real. I have attached a copy of one of my images which shows the problem. So you can use that as evidence this has been happening on a camera other than your own. It is not likely to be a specific thing in your observatory or mine. Most likely defective electronics.