Hello DL support (and Doug) STX16803, FW7, STXGuider, AOX A couple of issues. 1. occasionally get a frame that appears as a shutter issue. The camera does use 50mm square filters? This is very intermittent, and some nights happens once, and other nights not at all. Happens regardless of ambient temperature. Site temperature hardly ever gets below 0C. 2. some odd banding in frames (the camera was received new in July 2018), so doubt it's a desicant issue? keep in mind the camera is 2500 miles (4000km) away at a remote site, so can't easily pull it off and look at it or bench test it. I've attached zip files of the fits, and small jpgs for easy viewing. thanks, ...paul.