A shot of M42 taken through Sir Patrick Moore's 15" f/6 Newtonian
reflector on March 1st. Canon 20Da was used to collect the component
shots. 3x30s + 1x10s + 1x3s all at ISO1600. I believe that the faint
vertical lines in the larger image are due to the fact that I forgot
to turn the noise reduction mode on!
http://www.digitalsky.org.uk/DSO/M42-march2006.html
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Pete
http://www.digitalsky.org.uk