Aha!, I not going crazy! The "glow" that I see is always in the upper left corner. Although it varies in intensity and appears intermittently, I...
Hi Doug, thanks for the reply. I have been off the grid for a few days on a camping trip. I have been using the camera control module in The Sky...
When the camera was at Bill's facility the first time a couple of months ago he thought that a shiny area on the light shield may have been the...
Yes, I have only seen the "glow" in the upper left corner when taking light frames with the camera & filter wheel attached to a telescope. I...
Thanks for the reply Doug. Yes, the appearance of the "glow" in my light frames is puzzling. 1. I have seen the same effect using two...
Hi Gents, I sent my new STT-8300 camera to Bill about 3 weeks ago for investigation as to the source of the light contamination I have been seeing...
OK Doug, I will get in touch with Bill. Thanks for taking a look at those additional images. Yes, it is strange behavior that I haven't seen...
Hi Doug, the problem is that I am getting light frame subexposures with bright amp glow in them that do not subtract out with dark frames. For...
OK, thanks for the info. The effect that I am seeing on my light images varies. Sometimes the "glow" is very noticeable, sometimes faint, and...
Hi Doug, I uploaded a ZIP file - jacobsen_sample_darks - to the ftp uploads folder. Let me know if you need more. Interestingly I don't see the...
Hi all, I have been processing the images from this weekend - including the ones with the defect in them - and after looking at all of my light...
I uploaded raw and dark subtracted FITS files for the images posted above to the ftp.cyanogen.com as a zipped file - Image_Defect.zip
OK, here are JPEGS of two of the worst affected images. The first is a throwaway because of the guiding error but shows the problem nicely. Both...
Hi Colin, you can see the defect in several images I have posted with my other recent thread - STT-8300 - Possible Amp Glow Problem \. The board...
In a recent thread I had posted images showing a noticeable "glow" in the upper left corner of my images from a new STT-8300 camera - purchased in...
Well, it looks like the issue has been resolved and it is not amp glow. I had sent in the camera to Bill Lynch at SBIG Repair to clean the CCD...
Will do. Thanks for looking into this for me. Dean J.
Hi Doug, Any opinions on my camera after your quantitative evaluations of the flat field images I uploaded to your server? I have owned 7...
OK, uploaded 6 files to the "incoming" folder... I think. I couldn't actually see them in the folder but when I tried to upload again, I got a...
Hi Doug, thanks for the quick response. Sure, no problem. Do you want the FITS version of one or more of these flat field frames? How do you...
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