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Old 28-04-2007, 11:43 PM
tornado33
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Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 4,116
Pushing Houghys cooled DSLR with the 300mm lens

Howdy
Tonight I went a full hour's worth on one area. Moon is up so used narrowband imaging, 7nm Ha filter
The 300mm Flourite lens from Bert was used, @f2.8
Sensor temp 2 degrees. A single dark, flat and offset was used.
Area is near Eta Carina
4x15 minutes hand guided

Larger version here
http://www.iceinspace.com.au/uploads/cooleddeepb.jpg

The combination of the Flourite lens , cooled sensor and narrowband Baader 7Nm Ha filter makes a mockery of any moonlight present
Scott
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