Thanks for the replies. This is the 150C, and I was able to set the lens appropriately by pulling back on the metal tab. Still, I was able to set it to 1 second, but couldn't get past the bulb setting to set it to slower shutter speeds. As I'm sure you've guessed, I've inherited this camera and all the accessories with no manuals whatsoever, so I'm certain to have more bonehead questions in the future.

Thanks, again.