Hi All,
I am using a Canon 650D camera with a 200mm Tamron lens. Rather low quality lens but as long as I don't blow the picture up too much all is good. The camera is on a good tripod, an EQ tracking type. I took 45 photos at one minute each but only used 37 of them as a few of them had satellite traces or a plane through them. I also took 20 darks (that is with the lens cap on) and then stacked them all together and did some mucking around with them to finally pull out what you see. Cheers. Philip