Pushing the alt/az No guiding imaging to the extreme this is the Swan Nebula.
Swan Nebula M17 (Omega Nebula)
500 x 25sec subs at iso 1600
12" Meade LX200 (alt/az setup with No guiding)
Sony Nex-3 DSLR Camera
Stacked in DSS
Processed in GIMP
Link to higher res image
http://www.astrobin.com/47433/