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Old 17-05-2008, 10:55 AM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,776
Hi Ken

The detail in M104 in your re-processed image is gorgeous. I also note that it is down sized from the original, which showed excellent auto guiding – nice round stars, especially at an fl of around 2000mm.

I’m intrigued by the lack of blooming in your images! I was shooting 5 min subs at F9.6 and you were shooting 4 min subs at F5, around 2 photographic stops faster! I guess it’s because my model ST7 doesn’t have anti-blooming gate technology, whereas the QHY8 must have anti-blooming implemented?

I’ll have to have a good, close look at the QHY8 as I’m looking to upgrade to a bigger chip than the 765x510 pixel ST7.

Cheers

Dennis
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