A 2-frame mosaic using the Canon 200mm prime lenses and the Trius M26C OSC CCDs. This is Castor (upper right blue star) and Pollux (lower left yellow star) in a Gemini star field. Castor frame was 20-subs at 10-minutes per sub and the Pollux frame was 18-subs at 10-minutes per sub for a total exposure time of 6 hours and 20-minutes.
