This one didn't work very well :(  It was my first attempt at combining colour.

Date: 2008-09-26 (Ha) and 2008-11-11 (Ha & OIII)
Object: NGC7635 - Bubble Nebula
Scope: F5 GSO 150 Newtonian
Camera: SXV-H9
Guide Scope: Williams Optics ZS66
Guide Camera: SX Guidehead
Exposure (Ha): 125 minutes
Exposure (OIII):  45 minutes