I'm looking for some expert advice on the Magazine 70, serial number UI309733. Hasselblad have confirmed manufacture as 1974 but don't have a record of the serial number so can't answer my question. The question is should the frame counter re-set to zero when the insert is extracted. They say it depends on the type of mag 70 it is, but unfortunately they cannot confirm this from the serial number.
Can anyone offer advice please ??.