With the Nikon FE, the film advance was the meter switch. When pushed against the body, it locked the shutter release and turned off the meter.
The Minolta XD 11 didn't have an on-off switch. The LEDs in the meter would go off after a short period. Magazines, at the time, warned photographers to ensure that nothing was resting on top of the camera and pressing the shutter release, which activated the meter. They said it could drain the battery in a short amount of time.
The Olympus OM-2 does have an on-off switch for the meter.
The Pentax MX has a shutter release lock, which keeps the meter from being activated accidentally. Same goes for the Rolleiflex SL35 E.
Last edited by elekm; 09-28-2013 at 10:51 AM. Click to view previous post history.
Reason: Fixed the Minolta model