Spiral galaxy, M101 in Ursa Major

My first guided deep sky astrophoto of 2015, surprisingly.

Manually, off-axis guided for 12 x 5-minute exposures at ISO 1600, 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.

Done