One of my favourite open clusters in Carina. I first observed this in the 1970's with an 80mm Tasco refractor but it's nice in any telescope.
I got cut short by the weather so only 40 minutes of subs for this one, hence it's a bit noisy.
Kson ED80 at f5.5, Full Spectrum Nikon D70s, Baader semi-apo filter.
More biggerer image at astrobin.
http://astrob.in/71981/0/