Re: Manual cameras in general

Mike:
Motors and similar electromechanical devices do take lots of current. Digital camera power demands depend more on the efficiency of the electronics. Battery technology also plays a part. Lithium-Ions are more efficient than Nickel-metal Hydride which are vastly more efficient than NiCds. There's also variation within classes of NiMH battery chemistry. Some manufacturers like Canon are much better than others like Nikon.

So there's no quick answer on film/motor-drive vs digital camera battery life. It depends on the camera and batteries in question.


At 06:49 AM 6/30/2004, you wrote:
I've never had problems with battery life in Canon digital SLRs even in December morning cold at Bosque del Apache. (My

You know it is possible that digital bodies are NOT as battery hungry as film bodies -- Some years ago I had an EOS 10-S (one step down -then- from the top o-da-line EOS 1.)

It sucked thru Lithium faster than a schizophrenic. I used the shiftable program (most of the time) and continuous autofocus and some times bracketed a 1q/2-stop either way.

In Minnesota it was so cold that I managed to take about six or eight snaps before i had to change batteries. Of course I did not have the accessory belt power pack (kept under parka)

But because there is a motor that advance the film... and no such motor for digital bodies, Im wonder if maybe they are a bit less demanding of juice????

I know that two tiny AAAs in my little non-zoom Sony seem to last for WEEKS of use, but of course all it is doing is a little focusing and some computer-decided exposures. I assume that writing to media doesn't take much juice either.

ML


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Mark Bohrer
www.mountain-and-desert.com
Adventure travel and wildlife photography 


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