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comet Holmes 17/P shot with a 12.5" Portaball newton telescope at f/5 (focal length 1580mm). Camera waa a Lumenera 075M. Exposure times were 3" and 6" with as many as 500 images summed together. Registax4 was used for sharpening with wavelet filters.
Arlon | 01-Nov-2007 12:52 | |