Archived posting to the Leica Users Group, 2002/01/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]That, of course, assumes that your MR/MR4 is accurate enough for the battery voltage to make a difference. I found one that worked (eventuallY) and use it with 1.4V Zn cells and it is fine (agrees with my Zone VI digital). But most MR meters I have seen are C-R-A-P, because either (a) the internals have loosened up (certainmoving parts ride directly on the circuit board) or the photocells have gone bad (irretrievable problem). Leica doesn't like to even look at these, and there are very few parts left. The cell is not one you can get anymore. Although it is well designed from an operational standpoint (if you use filters it is crucial to meter outside the lens axis, and the fact that the view corresponds with the 90 frameline of the M3), check it out carefully before buying. At a minimum, the high end of the low scale and teh low end of the high scale should be close to matching. Anything else suggests a bad cell. I hate to say it after "upgrading," but the MC is better from a build and reliability standpoint. If only it had an exposure lock. - ------------ Dante Stella On Thu, 10 Jan 2002, John Collier wrote: > There are several options. > > You can build up a hoard of 1.35v mercury batteries. The supplies are drying > up fast but they are out there. Store them in a fridge, not the freezer, and > they should last many years. > > You can use the 1.4v ZnAir batteries. Camera stores sell Wien ones the > "right size" for a considerable expense. You can buy them cheap at a drug > store (hearing aid batteries) and use a copper washer to fit them properly. > They can have a very short life span depending on the humidity where you > live. > > You can get an electronic adapter called C.R.I.S. from these chaps: > > http://www.criscam.com/mr9.htm > > They are slightly thicker than the original mercury battery and some battery > compartment covers will not go all the way home. It still functions fine. > > Finally you can send your meter in to have it calibrated to the 1.5v silver > cells. The alkaline cells do not have the right discharge curve and will not > always be accurate. > > John Collier > > > From: "Logan Reinwood" <reinwood007@hotmail.com> > > > > How do you fix the 1.35v battery problem? Put a 1.5V battery and compensate > > with the ISO setting ? > > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html > - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html