grrrr....err99

[mikehsia]

After waking up at 5am to go to the beach and take pictures, I get there and after two shots, my camera starts err99'ing. I even tested the darn thing last night before I went to sleep to make sure everything was in order! So I end up leaving, coming home, freakin out about why my camera is err99'ing..... then after a while i just keep messing around with stuff.....nothing changed...same lens, same battery, same cf. watch some tv....then start playin around with it again...and it works! ...gotta love electronics.... I just hope it doesnt pop up again....blahhh. sorry, just had to vent.. err99 is no fun.

[Mogwyth]

Know where you are coming from, had my first Err99 Friday, took lens off refitted and no problems since, fiddled around no problem since.

[Scott J]

What camera?

I took delivery of an EOS1D mk2 before xmas that wouldn't function under about 5 degrees C.

Absolutely OK at normal room temperature.

Returned it Canon who replaced the shutter and it has been 100% reliable ever since.

I heard about others with exactly the same problem -- err99 at low temperatures caused by faulty shutter -- only with 1D mk2's though.

[mikehsia]

I have an 10D...although it was in cold temps....but not SUPER cold...right above freezing...i dunno..

[shiningstardv]

I had my first err99 the other day with my 20D. I popped the battery in and out and it seemed to fix it though. What exactly does err99 mean anyways?

[tim]

According to the manual, err99 means some unknown error that the camera can't diagnose itself.

[robertwgross]

Err99 officially means that the camera saw an unknown problem.

Err99 commonly turns out to be a lens-to-camera communication problem. It seems to happen more on older non-Canon lenses, but it can happen to any. It seems to happen more when the aperture is wide open. Sometimes it is caused by poor contacts in the lens mount.

Doesn't that fit the scenario?

---Bob Gross---