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Let's not risk having this thread locked, gentlemen! All this talk of chrome and black paint is making my head spin and I can't think which one to take with me tomorrow...

 

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Chris

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<snip>...The Montreal winters kill my M7 and MP batteries very quickly. Luckily, the MP is fully mechanical so I can continue shooting.

 

 

...can someone please clarify - does the temperature drop actually kill the batteries or simply render them inactive until they warm up again? I have never had to shoot in such extremes.

 

Further, does anyone know the operating temperature range of the MP (with and without batteries)? I seem to remember that the M6 was subjected to tests in temperatures ranging from -25˚ to +60˚C.

 

All purely academic, folks. Thanks.

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...can someone please clarify - does the temperature drop actually kill the batteries or simply render them inactive until they warm up again? I have never had to shoot in such extremes.

 

In my experience, cold temperatures render the battery inactive after some period of time (depends how cold the air is, my understanding is that wind chill does not factor into it), but once warmed up, the battery will be usable once again.

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...can someone please clarify - does the temperature drop actually kill the batteries or simply render them inactive until they warm up again? I have never had to shoot in such extremes. ...

Cold temperatures inhibit batteries' ability to turn chemical energy into electrical energy by slowing the process down but the process recovers when they are returned to a warm environment. So, cold doesn't kill batteries it only stuns them.:rolleyes:

 

Pete.

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...can someone please clarify - does the temperature drop actually kill the batteries or simply render them inactive until they warm up again? I have never had to shoot in such extremes.

 

Further, does anyone know the operating temperature range of the MP (with and without batteries)? I seem to remember that the M6 was subjected to tests in temperatures ranging from -25˚ to +60˚C.

 

All purely academic, folks. Thanks.

 

My M7 can last about 30 minutes in the cold before become inopperative because of cold batteries.

The MP doesn't even last 5 minutes in the cold, even if I use Lithium or Silver.

 

The Batteries work again as soon as the temperature rises. The Beauty of the MP and other Mechanical Leicas is that you can use all the speeds without the battery.

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...thanks for all the replies. So, next question - what is the most extreme temperature you have operated your MP at (with or without batteries)? I shot in temperatures around 42˚C in Niamey, Republic of Niger, without any issues.

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...thanks for all the replies. So, next question - what is the most extreme temperature you have operated your MP at (with or without batteries)? I shot in temperatures around 42˚C in Niamey, Republic of Niger, without any issues.

Not that 15F( -9C ) is extreme but that is the coldest I have used mine. I wasn't using the meter but, the camera worked perfect. I was out for a few hours and then the wind got the best of me!

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Around about the same as Chris.

 

I recently shot in 10F (-12C), and mechanically the camera was fine. However a problem I kept having was that when I put my eye up to the viewfinder, my body heat seems to fog things up.

 

Anyone else experiencing this? And does anyone have a good solution?

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