My canon eos 30d turns off after taking only one picture. i have three charged batteries that i have tried, so i dont think it is the battery. any suggestions?

If you have dirt on the sensor, it can be cleaned using special products. If you Google the words "how to clean an SLR sensor", you will find sites that explain the procedure with pictures and places where you can order the supplies needed. This is much less expensive than trying to replace the ccd sensor.

There is a small Lithium coin battery on the side of the battery compartment that is the memory battery for the camera functions. Remove the battery pack first, then holding the camera with the lens facing your body look at the top back ledge of the battery compartment and see lettering CR2016. slide your finger down the back ledge and feel the ridges. with slight pressure slide the compartment up and take out the CR lithium coin battery. replace with a like new battery. If you ever need to reset a stuck program in the camera, remove this battery for a few minutes and the camera will re-boot to factory settings. This battery last for about 5 years.

it is supposed to do that, do not worry it is fine

When you disconnected the camera, did you use the "safely remove hardware" icon at the bottom right of your computer screen or did you just yank out the cord?

The problem that you describe is frequently due to a corrosion buildup that prevents the full power of the batteries from flowing to the camera. Remove the batteries and wipe the camera contacts firmly with a dry cloth (heavy corrosion may require cleaning with a wire brush, steel wool, or sandpaper). Remove any residue that may have fallen into the battery compartment during the cleaning, then wipe both ends of the batteries and reinsert them into the camera. This cleaning clears the problem about 90% of the time, and I hope it works for you.

Hi - You can download the manual from the link underlined in blue below:


Canon EOS 30D

For info on fixing error 99 see here.

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Hey Paul

I have the same problems, I just sent it back to Canon Service Center for repairs. I will see what is the outcome.....

I seem to recall hearing that the power switch can be a problem on the 30D .. I'm not going to suggest you take it apart to clean the contacts .. better go to a Canon Dealer I think ..

Had this problem before and i found this guide online

1. Turn off the camera.
2. Remove the lens, battery, and CF card.
3. Allow the camera to sit without power for approximately 20 minutes.
4. Insert a fully charged battery, and turn on the camera.
5. Depress the shutter button as you would to take a picture.
Does the “ERR 99′ message appear? If it does, then the camera should be
serviced. If it does not, then please proceed to the next set of steps:
1. Turn off the camera.
2. Insert the CF card.
3. Turn on the camera.
4. Format the CF card in the camera.
5. Depress the shutter button as you would to take a picture.
Does the “ERR 99′ message appear? If so, then the CF card is the most
likely source of the issue. Try using a different card.
If the message does not appear, please complete the following steps:
1. Turn off the camera.
2. Clean the lens contacts by gently rubbing them with a pencil eraser
or soft cloth. Be careful that you do not let any debris fall into the
camera body.
3. Reattach your lens.
4. Turn on the camera.
5. Depress the shutter button as you would to take a picture.
If the “ERR 99′ message only appears when one particular lens is
attached, then that lens should be examined by a service technician.
If you see the “ERR 99′ with a different Canon lens attached, then the
camera should be serviced.

I also had this problem.
Try to remove the battery for more than 1 minute.
Also try to remove the CF-Card for more than 1 minute.
For me this only resolved the problem for 5-10 pictures.
Then I had to remove battery and CF-Card again.
The only real solution for this problem is to give the lens to repair.
Because this problem is caused by a wrong adjustment of the lens aperture.