| Dobsonian Astrophotography |
| M27 |
| Telescope: Obsession Mirror: 25" f/5 Galaxy Optics Drive: AZ/ALT, StellarCAT ServoCAT with DSC Argo Navis |
| Camera Equipment: ST-10XME Class 2 CCD, CFW-8A, AO-7, Pyxis Field De-Rotator, TCF-S |
| Exposure: RGB =1:1:1 minutes Processing: CCDOPs, RegiStar 1.0 (align,combine), Photoshop 5.0 (Levels, Curves, Unsharp Mask, Color Balance,
Hue/Saturation) |
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Location: My backyard in Ridgecrest, CA (Mojave Desert), 2600 ft. elevation, population 30,000 Date: 5/22/05 |
| Comments: M27 requires a longer exposure. Starting to use Maxim DL for camera control. Maxim DL has the advantage of automating multiple exposures with different filter settings. Made the time between exposures too short and the guide star too dim. As a result, all green filter images failed to guide properly and all red and blue images were blurred. The three images used were taken with CCDOPs. |