Quote Originally Posted by AgX View Post
One can make silver-oxide cells fit mechanically and electronically. But that would mean some hassle.
But they are 1.5v and decline voltage over their lifetime, whereas CdS meters RELY upon a constant and unvarying 1.35v provided by mercuric oxide batteries. Simple substitution of alkaline or silver oxide very frequently results in inaccurate readings that cannot be simply compensated with lying about ISO...the Olympus OM-1 is one such example.