a SanDisk CF memory card draws about 100mA at 3V when writing. it is one of
the least power consuming parts of a digital camera. if you stuck a dynamo
the size of one in a hand cranked emergency radio, you probably could run a
camera off of that. look at the power supply for slimline P&S digicam. my
Optio S5z says 4.2V at 630mA. figure 2/3 is for running the LCD, which i
think is generous, and you still come up with more than 200mA. it takes
about 5 seconds to write an image. that's 4.2 joules. try it some time.
those hand cranked radios draw less power than the average digicam.
Herb....
----- Original Message -----
From: "Frantisek" <[EMAIL PROTECTED]>
To: "Herb Chong" <[email protected]>
Sent: Friday, September 23, 2005 9:09 AM
Subject: Re: Irrelevant Poll: What do you WANT in a digital camera?
Friday, September 23, 2005, 12:55:47 AM, Herb wrote:
HC> if it has a digital sensor, the winding won't generate enough new
power to
HC> put up the low battery warning. it "might" be enough to run the K1000
light
HC> meter.
Any hard mA figures, if you are so sure, as usual?
