I went out here in North Dakota last night to shoot the Aurora. It went ok using a 645DF/IQ180 with the 80mm LS. Most of my shots were at F2.8/ISO 200/8-10 seconds. The shots are ok but that is just it "ok" when it comes to IQ. Very grainy overall and all sorts of purple/brown lines and color casts. Has anyone else had any success getting some high quality shots using a similar setup? Right now I am thinking the IQ180 might just not be up for the task.