I have never photographed a lunar eclipse before. So I need a starting point for good exposure (shutter speed, aperture, ISO). I will be using Canon 5D Mk III, 70-200 mm 2.8 lens (at 200 mm) with 2X TC. I will be shooting on a tripod, I do not have any sort of tracking device and have no idea at which point the moon will start trailing. I don't want to be fumbling with my camera in the dark as the eclipse is happening. If somebody has done this before, could you please share your settings?

