I've tried asking this question before, but no response - maybe I'll be luckier the third time. Anyway, here goes:
I've got an old Velbon VGB-3 tripod in perfect condition. It's 25 years old, extremely well made and has a removeable pan/tilt head without bubble-levels that I'd really like to replace with a ball-head if possible. The head mounting screw looks to be the same size as the camera screw.
Does anyone know of a reasonably priced ball-head that'll fit this tripod? Is there one with built-in bubble-levels? I would REALLY appreciate any help. Thanks.