Archived posting to the Leica Users Group, 2001/03/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Muhammad If the meter is calibrated for use with the Silver Oxides, why not stick with them rather? - ----- Original Message ----- From: "Jason Hall" <JASON@jbhall.freeserve.co.uk> To: <leica-users@mejac.palo-alto.ca.us> Sent: Tuesday, March 13, 2001 6:52 PM Subject: Re: [Leica] Another battery question for Leicaflex SL/SL2 > Hi Muhammad > > The Leicaflex can't be calibrated for Alkalines, unless some > compensating circuitry was added, the discharge curve is too curved > and as far as I know the Alkalines are 1.5V not 1.35V! It may have > been calibrated for Silver Oxides also 1.5V? The mercury batts are > 1.35V. I have seen a variance of between 1/2 and 1 1/2 stops in some > cameras between merc, alk and Silver batts, but the best way to find > out is to compare it against a known accurate meter or shoot some > film. > > Jason Hall > > > I have a Leicaflex SL2 MOT whose light meter was calibrated by the > previous > > owner for use with 1.35v alkaline batteries. If I use a PX625 > mercury > > battery now with this camera, how far off will the readings be? Do > I need to > > recalibrate it? A friend is sending me some of these hard to find > batteries! > > Thanks in advance for your help! > > > > With best regards, > > > > Muhammad > > > > Muhammad R.K. Chishty, Ph.D > > Associate Professor of Finance > > Graham School of Management > > Saint Xavier University > > 3700 West 103rd St > > Chicago, IL 60655, USA > > > >