I spent a night on Mt Baw Baw - 2.5 hours drive from my place in Melbourne.
5,000 feet in altitude - the sky was the best I've ever seen
but the wind came up - and buffeted my telescope.
The result was that most sub-frames had to be deleted.
I managed to get only 5 resonable frames of Eta Carinae -
each was 2.5 minutes &
6 x 5 minute sub-frames of M83 - the Southern Pinwheel
all at ISO 1600.
Telescope 8" f6 Newt, EQ6 Pro modified mount, Baader MPCC,
no filters with an unmodified Canon EOS 1000d.
PHD guiding, Dither Master from Nicola with Canon remote shooting.
I only did a minimum of processing.
A larger version of Eta Carinae is here:
http://i262.photobucket.com/albums/i...S_PS_PS_PS.jpg