C/2007 N3 Lulin
After a night of imaging pointed the 300mm lens at where I thought comet Lulin was and managed to get 10+ frames before twilight interfered.
Canon 5DH, canon 300mm F2.8L at f/2.8. 10x2min at 800 ISO, hutech LPR filter.
Below is a full frame and a crop with north to the left. There is a faint tail pointing towards the Sun. There is an even fainter longer one away from the Sun.