hello , my ioptron minitower came with a *very* long dc cable to connect to a car lighter socket. As i'm using a portable powee source just under the tripod, the cable is way longer than needed - thought id just go and buy anothe afaoter cable with a short cord, but know from past experience things like tip positibe, sleeve size etc all need considering. anyone got advice on what plug size, tip polarity etc i need? manual no help, neither has google been much help... exoect to find an "ioptron 12v dc cale for the princely sum of $49.95 ! from an online telescope shop! thanks
