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#181
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Dangers in copying pics from camera to computer
In rec.photo.digital KewlKiwi wrote:
Bill Funk wrote: So far, I've seen nothing to actually convince me that the camera charges its battery using power from the computer's USB system. What I do see is a manual that mentions absolutely nothing about charging in any way other than connecting the charger. Now, while I suppose it's possible, I still don't see it. Please see my post to Mark. I guess the only way you two will be convinced is if you buy it yourselves! Rather an expensive way to lose an argument though... It would be nice if (either of you) can explain just why you are so *sure* it is impossible for a camera to be charged from a computer's USB port? Other than the fact there's not much in the way of amps, just what is the problem? /mild sarcasm/ Is it perhaps a 'special' sort of electricity that comes out of a USB host that makes it unusable for charging batteries? /end sarcasm/ There is no reason why a camera battery can't be rechared via a USB port. However, that does not mean that it is possible for any given camera. It is quite possible to have a working USB port and not take a charge through it -- and there are any number of reasons (cost, weight, etc.) why you might not want the camera battery recharged that way. Manuals ought to be more specific about this situation. ---- Paul J. Gans |
#182
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Dangers in copying pics from camera to computer
With any transfer from a battery powered device you should always use
an AC adapter. Just a safe rule of thumb. But as far as damage goes i can't really imagine anything big happening, if anything you may have to format your card afterwards. |
#183
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Dangers in copying pics from camera to computer
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#184
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Dangers in copying pics from camera to computer
KewlKiwi wrote in :
What I'm surprised at is that there aren't more cameras that can (re)charge via the USB port. Most of them, after all, do have a USB socket to connect to the computer, and that socket can supply 5 volts (albeit at a low wattage) so why not take advantage of it while the camera is connected to d/l photos? You're surprised there is one such camera, I'm surprised there aren't a lot of them. To be honest, if there were 2 models of the same camera for the same price - one with the ability to charge through the USB port and the other using a separate socket for the power adaptor which couldn't charge through the USB port - I would choose the one that didn't charge from the USB. There are reasons why people may not want the device to draw power from the USB port, one is that the port could be shared with a mouse or keyboard and plugging in a device that sucks power from the port will cause a problem for other devices that attempt to power themselves from the USB port at the same time. I have a printer and a scanner that both plug into the USB port, but both get their power from power adaptors. My Pocket PC also powers itself from a separate power adaptor. If all these devices were designed to get their power from the USB port then I would have a big problem, with not enough power to go around. My camera works just fine with a separate charger to charge the batteries. BTW I wouldn't mind the USB charging so much if you could control it - decide whether to let the camera run on battery power or separate power or USB power. Without the control it has the potential to be a damn nuisance. -- Mark Heyes (New Zealand) See my pics at www.gigatech.co.nz (last updated 5-September-05) "The person on the other side was a young woman. Very obviously a young woman. There was no possible way she could have been mistaken for a young man in any language, especially Braille." Maskerade |
#185
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Dangers in copying pics from camera to computer
Wakke wrote:
With any transfer from a battery powered device you should always use an AC adapter. Just a safe rule of thumb. But as far as damage goes i can't really imagine anything big happening, if anything you may have to format your card afterwards. I always format my card afterwards. I used to have a cigarette, too, but I quit smoking. -- Frank ess |
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