M1 - The Crab Nebula  
Crab Nebula - Canon 20Da - 36 min;

Crab Nebula - Canon 20Da - 36 min;(John Ambrose)

Acquisition Date : Nov 30, 2005
Camera : Canon 20Da w/IDAS filter
Camera Settings : ISO 1600; 36 min composite of 30 sec shots
Telescope : LX200GPS 10" at f/3.3
Mount : Standard
Adapter / Prime / Afocal / Other : Prime
Processing Package / Processing Applied : ImagesPlus: Digital Development; Richardson-Lucy deconvolution; Contrast Stretch
PhotoShop Elements: Unsharp Mask; Auto White balance; Auto Levels; Sharpen
Web Site : www25.brinkster.com/johnambrose
NOTES : Shot in Alt-Az mode

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