« on: June 27, 2013, 05:44:37 PM »
A friend of mine has the 6D. The battery drains overnight even with the power off. He sent it to Canon and they upgraded the firmware and then said that they could not reproduce the problem.
It worked properly for a couple of weeks, but now it's doing it again. He can't leave the battery in the camera without it draining in a day or two, even with the power switch shut off.
Has anyone else heard of this problem?
PS... too late to return it.
otherwise no.. never heard of that problem.
GPS and wireless is off. Even the main power switch is off, so it shouldn't matter what the GPS and wireless are doing.
Which lens do you have attached? I've had my 6D since December and only saw this problem twice, recently after purchasing a Tamron 24-70 2.8 (power was switched off). Both times I had the Tamron lens attached and found the battery completely drained in the morning. I have never seen this with any other lens attached (Canon 24-105, 70 - 200)
Thanks for the tip!
He does use the Tamron 24-70 2.8 IS. I asked him to try different lenses, as well as leaving it with no lens attached. He is away for another week or so, but I'll pass on your experience. The lens may well be the problem!
That's it. Tamron lenses released prior to newer Canon cameras (new Rebels and 6D) can cause this issue. If that lens is still in warranty your friend should ask for replacement. Tell him to insist on replacement. I made a mistake and didn't do it. Instead of replacement the service centre replaced just VC and reprogrammed the lens - it solved the issue with battery but made the lens worse. I finaly got a replacement this week due to another issue.