>>3378998675 hearing aid (blue tab) zinc-air cells. they are 1.4v and work just fine on most cameras requiring 625 mercury cells. exposure meter is spot on on my minolta SRTs.
they are like 3.99 a dozen at walmart or a dime a piece at the drugstore.
only issue is they're different size, but you can wrap some foam around to keep them in place, and sometimes it's not needed. the spring tension on the SRT keeps them in place.
don't fall for the weincell meme. it's the same thing but way more expensive, and it's also a zinc-air cell so it'll dry up over time. won't last nearly as long as the mercury cell it replaces, or even silver-oxide/alkalines.
only valid reason to get a weincell is to use it on 8 or 16mm film video camera meters that absolutely require the constant 1.35v.
or just add a diode after the battery and be done with it. can be a 1N5711 Schottky or whatever other type that drops voltage.
