A couple weeks ago, I set up my Canon 40D and Optika Timer to take a timelapse video of the roof repair effort. It took just over one thousand photos and then stopped.
Err 99
Shooting is not possible. Turn the power switch to <OFF> and <ON> again or re-install the battery.
At the time I just assumed that the battery’s charge had run out, since I had not thought to fully charge it before setting up the shooting and it had been shooting for a couple hours. It was only when a full charge changed nothing that I began to get worried.
Searching the internet, I learned that Error 99 is just about the worst problem a Canon camera can have because it’s the generic "Something is wrong, but I don’t know what" error message. They say that it’s often an electrical error, particularly caused by improper connections between the camera body and its accessories (e.g. lens, CF card, battery). They tell you to get a clean pencil eraser and rub it on all the electrical contacts between the battery, lens, and camera. I tried this, but to no avail. My expensive DSLR camera is less than a year old and is now just a paperweight.
In the end, I decided it would be the least hassle if I used the US service center, especially since I had the perfect opportunity to conduct the repairs from inside the US. My parents were visiting, could take my camera to the US, mail it to the service center, receive it back a few weeks later, and then I will be traveling to the US in late November and I can pick it up then.
I know at least two of my regular readers are in the Canon 40D club, so I warn you, if you ever see Error 99, your camera needs service a.s.a.p.





Yikes. I hope Error 99 proves to be completely fixable.
I briefly had an error message the other day. I don’t remember whether it was a 99 or not, but it said something about a problem with the automatic sensor cleaning thing it does every time you turn it on. So, of course, I turned it off and on again, and haven’t had any problems since.
I kept all my receipts and stuff, and filled out an online warranty form when I got back from buying it. Here’s hoping I don’t have to use it…
The camera is on its way to New Jersey. Hopefully it’ll be back by the time you hit the States in November.
Error 99 seems to be a giant problem with the 40D and canon sent mine back after warranty work with the entire camera f&%*^&ed up………..
good luck………it was the WORST experience i have had in 30 yrs of dealing with them
That is seriously teh poo.
You’re a strong man to not use this opportunity to try to convince your wife that the fix is a new 5D Mark II. [ emoticon indicating exaggerated slyness, tipping the reader that the author is attempting to distance himself, through humor, from the implications of his comment with respect to the value of candor and trust in a spousal relationship ]
I began to experience the dreaded Error 99 tonight after shooting a few pictures of the family in front of our Christmas tree . . . also after using an Optika remote. Amazing coincidence; up to now, I’ve had no problems with my 40D and grip.
I’d sure be interested in learning what Canon ultimately diagnosed. I have a feeling I’ll be on the phone – and on my way to a FedEx office – on Friday. Grrr.
I just experienced this problem with my canon rebel xsi with my sigma 10mm fisheye f/2.8 when I was shotng the city and it happened like 39 times
I really wish there was a cure for it
There is a cure to the Canon 40D ERR 99. Just switch to Nikon. I was so frustrated with the 40D ERR 99 that I finally took a switch and I am now happy with my Nikon D300.