Archived posting to the Leica Users Group, 2002/10/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]If it helps - the capacity of a new Panasonic LR44 Alkaline at 20c is 105 mAh. This gives 105/14.48 = 7.25 hours with the shutter button depressed enough to run the meter continuously. I may be wrong as I am drawing on knowledge of electrical principles last used 20 years ago. Neil - -----Original Message----- From: CHARLES STIRK JR C [mailto:ccstirkjr@yahoo.com] Sent: 23 October 2002 16:19 To: leica-users@mejac.palo-alto.ca.us Cc: rafaelalday@yahoo.es Subject: [Leica] battery appetite from THE LUG ARCHIVE via John I have read many posts about the voracious battery appetite of the TTL; and, armed with a Fluke 88 Multimeter, an open mind and that curiosity of all things Leica innate to those on this list, I decided to find out for myself. The hapless victim is a chrome 0.72 M6TTL serial no. 2472064 and the operation involved using various (and nefarious) methods know to those of you of scientific or farming backgrounds. In order to meet the stringent requirements of our august body, generous amounts of black tape was employed. The results are as follows: Camera's Observed State // Current Draw Shutter speed dial set to "off", shutter wound or released and pressure on shutter release or not // 0.00 milli-amperes Shutter speed dial at any position, meter not activated and shutter wound or released // 0.00 milli-amperes Shutter speed dial at any position other than "B" and "off", meter activated and shutter wound // 15.68 milliamperes Shutter speed dial at "B" position, meter activated (no display) and shutter wound // 14.48 milli-amperes Shutter speed dial at any position but "off", shutter wound, and meter activated but allowed to time out // 0.00 milli-amperes Shutter speed dial at any position but "off", shutter released and pressure on shutter release // 16.48 milli-amperes Conclusions It is fine to leave the camera "on" as long as there is no pressure on the shutter release. If there is pressure on the shutter release and the camera is not "off", the battery will drain down regardless if the shutter is wound or released. If the camera is being carried in a case, it would be prudent to switch it to off; other than that, I would not worry too much. It is very simple to rig up the above tests and if you are having problems with battery consumption, I certainly would advise it before sending the camera back. Leica states that a new battery will give around eight hours of metering time so it would be easy to drain the battery overnight if there was pressure on the shutter release. Cheers John Collier __________________________________________________ Do you Yahoo!? Y! Web Hosting - Let the expert host your web site http://webhosting.yahoo.com/ - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - ------------------------------------------------------------------------------ This message is intended only for the personal and confidential use of the designated recipient(s) named above. If you are not the intended recipient of this message you are hereby notified that any review, dissemination, distribution or copying of this message is strictly prohibited. This communication is for information purposes only and should not be regarded as an offer to sell or as a solicitation of an offer to buy any financial product, an official confirmation of any transaction, or as an official statement of Lehman Brothers. Email transmission cannot be guaranteed to be secure or error-free. Therefore, we do not represent that this information is complete or accurate and it should not be relied upon as such. All information is subject to change without notice. - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html