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M42
Telescope: Borg 125SD
Lens: William Optics FLAT4 at 0.8x reducer/flattener set at 0
Mount: AP 900 GTO
Camera: Canon 60Da ISO 400, 800, 1600
Exposure: 30 total, 10 at each ISO setting
Processing: ImagesPlus 6.5
Location: NCO seeing poor
Date: 30-Jan-2016