Hi all,
Here's an image I did recently of the popular Omega Centauri globular star cluster NGC 5139 in Centaurus.
You can see a higher resolution image here
http://www.skylab.com.au/pmsa/NGC%205139c.html
Image is a 24-minute exposure (6 x 4 min. sub-frames) @ ISO200.
Image taken with a modified Canon 300D DSLR mounted at prime focus of
a 12" f/5 newtonian telescope with 2" Baader Coma Corrector and
2" UV/IR Rejection filter.
Autoguided on a Losmandy Gemini G-11 equatorial head and custom
Southern Cross observatory pier using a SBIG 402 CCD/guider
at prime focus of a 4.5" f/9 newtonian guidescope.