This is an hour of video condensed into 5 seconds showing the pretty fast drifting of Geostationary satellites.
I used a focal length of 1.500 mm in order to show almost 3 satellites.
The mount 10Micron GM1000 HPS pointed accurately at the Hotbird 13C satellite even with 6.135 mm of focal length on a small CCD sensor (4,8 x 3,6 mm)!
