using my SBIG STL 11000 to take short exposure I got this strange issue:
for exposure below 0.1sec the image seems corrupted and split in two parts
(Please see screenshot here)
No problem with exposure longer than 0.2 sec.
Moreover using very short exposure the image seem not related to exposure time (i.e using 10 or 20 millisends I got exactly the same image with the same ADU levels.)
These short exposures are very useful in my case to take flat shots with fast telescope and different filters (L and H alpha) without any change on the flat panel.
It seems a bug but please let me your comment.
Thanks in advance.