The blue reflection nebulosity of the Pleiades Star Cluster shows up well on a very dark night at the Island Star Party.
Details
2010-09-04 at Bright Angel Park, Vancouver Island.
Conditions - clear and very dark, dry and 15 deg C.
Equipment - 300mm Canon L series lens with modifed Canon T1i camera on Astrotrack mount.
Exposure - 37 - 2min lights at ISO 800 with darks and flats used for calibration.
Processing in Images Plus and Photoshop.