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M51-The Whirlpool Galaxy(Scott Rosen)
| Acquisition Date | : | April 30, 2011 |
| Camera | : | Canon 20Da |
| Camera Settings | : | 159 subs @ 75 seconds each, Total time approximately 3.5 hrs, ISO 1600, Daylight WB, 30 darks, 30 flats, 30 bias |
| Telescope | : | Celestron C-8 |
| Mount | : | Schaefer 7" GEM, unguided |
| Adapter / Prime / Afocal / Other | : | Lumicon Telecompressor yielding 1100 mm @ f/5.5 |
| Processing Package / Processing Applied | : | IP 4.0 for acquisition, stacking, calibrating, and digital development. Photoshop CS5 for white balance, shadows and highlights, unsharp mask, star shrinking, saturation, screen mask invert, highpass filter. Noise Ninja for noise reduction |
| Web Site | : | http://www.frazmtn.com/~srosen/astrophotography/ |
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