Quote:
Originally Posted by Terry B
Try taking the same exposure via the camera and via the computer. It looks like noise from the download via the cable. I sometimes get variable horizontal lines if I use a desktop rather than a notebook to image. Mine relates to draping the cables over the desktop box.
Not sure why it would be in the same place though.
Another possibility could be a sticking shutter.
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Maybe if the problems is coming from data downloading in real time via the cable, it may be better to record the images on memory card incamera - well this is what I will be doing , it's easy to download the images later .
Just a thought , I have a 40D too , mine hasn't been turned on the stars yet.