Not that I needed another image of M15 but it was conveniently placed to check out the belt drive mod to my EQ6.

Drive is smoother, quieter, points more accurately and guides nicely. Success I think!

200mm f/5 Newtonian
Canon 600D
20x90s lights
darks and flats, guided in PHD on C80ED
Captured in APT, processed in Nebulosity and PS CC