Great Orion Nebula (M-42 / M-43) and NGC 1977
Telescope: Televue NP-101 with f/4 telecompressor
Mount: Losmandy GM-8 Guided by SBIG ST-4 (large tracking error this night)
Camera: Hutech modified Canon 20D (AA/IR filter removed); IDAS LPS filter
Exposure: Four each of 3 minute, 1 minute, and 30 second exposures ISO 800 (RAW)
Processing: DPP RAW conversion; Combined in Registrar; Contrast, curves in Photoshop 7, Layers and mask in Photoshop to increase core detail with shorter exposures.
Date: 11 December 2004
Site: Gainesville FL