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Old 07-05-2007, 09:09 PM
tornado33
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tornado33 is offline
 
Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 4,116
Resolving power of the 300mm Flourite lens

Hi all
While using Houghys cooled DSLR and the 300mm f2.8 lens from Bert, I did a colour unfiltered image of the Toby Jug Nebula, an object normally far too small for only 300mm Fl.
3x2 mins ISO400 stopped down to f4.5

Full res crop from centre shown.
Full res version (large download) here
http://www.iceinspace.com.au/uploads...mm%20lensb.jpg neb 3x2minsiso400 300mm lensb.jpg
Only the IDAS UV/IR filter was used. Sensor temp around 4 degrees.

Sharp stars to the very corners
Scott
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Last edited by tornado33; 09-05-2007 at 04:17 PM.
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