Is it OK to take out the lens, battery, or CF card wile my Canon 40D is on?
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Is it OK to take out the lens, battery, or CF card wile my Canon 40D is on?
Not a good idea. If the battery arcs while being removed could be problem. Not sure if other two would be a problem. Better to error on side of safety
I never turn my camera off. Only when I stop shooting. However, I only shoot 1 series bodies. I do not know whether it is an issue with the xxD but I guess not. When I open the card slot the camera turns off anyways. Same when I take out the battery.
I also never turn it off when I change lenses or switch TCs.
The only thing you have to have in mind is that you have to make sure that the IS is not running anymore and that the camera doesn't write while you open the card slot.
I'm not sure why one would want to do that. Wouldn't it be wiser to be safe, and to turn the camera off first? Maybe you could get away with it, but why try?Quote:
Originally Posted by Caleb Royer
Norm Dulak
I was told by Mark Theissen, a photographer for National Geographic, to turn the camera off before changing a lens. He said an electrifed sensor (leaving the camera on) attracts particles and you have to clean the sensor more often. Oh and get this, when I asked him what he uses to clean the sensor, he responded SCOTCH TAPE!
Not recommended.
I try to turn the camera off to change cards, if in a real hurry I won't.
Almost never turn camera off to change lenses.
Always turn camera off to change batteries.
Thanks everyone for the help. I will start turning my camera off before removing the lens, card, or battery (unless I'm in a big hurry).
I think he must have been pulling your leg.Quote:
Originally Posted by Charlie Woodrich
Roger
Once I heard from a friend that a guy in their computer lab pulled boards out of the computers to change things while they were still running! He was fired.
Same with cameras. Digital cameras are computers.
Best to turn them off before removing components. (I do leave the camera on when I change lenses unless the environment is very dusty, then I turn it off.)
Roger
I know I won't use this method, but some do.Quote:
Originally Posted by Charlie Woodrich
http://www.digitalcamerareview.com/d...sp?newsID=3008
Bill
This is the key - "The low-tack adhesive used to remove dust has been proven not to leave residue" unlike the high-tack adhesive of scotch tape.Quote:
Originally Posted by William Malacarne
I didn't sense that he was.Quote:
Originally Posted by rnclark
Hi Caleb,
I always turn the camera off, for all three. (lens exchange, battery replacement, and media card replacement) Remember that your camera is a computer with a lens attached. Would you pull the plug on your computer in the middle of a running application, or simply depress the power button cold turkey??? :eek::D:cool:
Its best to turn it off.
Just wondering, why people don't turn the camera off.
It doesn't take any time, or am I missing something?
In some cases the off switch really doesn't turn off the camera, it only disables the user functions, like the shutter button. With the "requirements" of instant on and use of a body, more current (usually pro) bodies act in this manner.
In the case of a Canon 1D3 for example, one can have the body off remove and replace a CF or SD card close the gate and watch the indicator light read the card. The camera is actually on. Trying this same w/ a 40D the same does not occur, 50D and 5D are elsewhere now so I can't check those.
I rarely concern myself with the off switch, only if I am concerned that unintentional button presses could occur does a body get actually turned off, otherwise they just go to sleep. As to changing lenses, batteries or cards the same thing goes. Through 7 bodies and only replaced a shutter on a 1D2 which wasn't a power on/off issue, leaves me to think at least I am doing no harm. YMMV of course.
