Image Location and Date: San Diego Astronomy Association Dark Sky Site @ Tierra Del Sol, July 3rd 2011.
Object: M57 Ring Nebula
Mount: CG5GT
Imaging scope: Omni XLT 150 Newtonian
Imaging FL: 750mm
Imaging focal ratio: f5
Imaging camera: Modified Canon 350D
Lights: 17 x 180sec @ ISO800 (51 Minutes)
Calibration: Darks, flats, bias.
Guide scope: Antares 8×50mm finder with Orion StarShoot Auto Guider
Other details: guided with PHD, captured with APT, stacked in DSS processed in Photoshop, ran through it with Noise Ninja