Globular Cluster M22, in Sagittarius
Finally got a couple of clear nights :-)
This object is far to the south, and I only have a short time to image it between obstructions, hence the short exposures and high ISO.
13 x 1-minute exposures at ISO 3200, f/4. Modified EOS 600D & Revelation 12" Newtonian reflector telescope.
Registered and stacked using DeepSkyStacker; initial curves adjusted in Canon Photo Professional; final curves & colour-balance adjusted using Paint Shop Pro; noise reduction via CyberLink PhotoDirector.
Globular Cluster M22, in Sagittarius
Finally got a couple of clear nights :-)
This object is far to the south, and I only have a short time to image it between obstructions, hence the short exposures and high ISO.
13 x 1-minute exposures at ISO 3200, f/4. Modified EOS 600D & Revelation 12" Newtonian reflector telescope.
Registered and stacked using DeepSkyStacker; initial curves adjusted in Canon Photo Professional; final curves & colour-balance adjusted using Paint Shop Pro; noise reduction via CyberLink PhotoDirector.