Problem with 6D - changing shutter speed

Anyone out there have a problem like this and if so how did you fix it?

I am currently down in Moab on vacation and have run into a weird problem with my new (3 months old) 6d. I wear a optech double sling and have the 6d suspended from the harness. It swings about waist height.

I have been leaving my camera on all the time but in the last couple of days it has started to give me problems with changing the shutter speed. I shoot fully manual and the camera will stop allowing me to change the shutter speed using the rotary dial. I have found that if I turn off the camera for a couple of minutes then I am able to control all the functions no problem.

As far as I can tell all other functions work properly. When this happens I can still change aperture, ISO, no problem, just can't change shutter speed.

If I leave the camera turned off and only turn it on when I want it seems to work just fine. The temperature here is running between mid 30's F to mid to high 70's and it does not seem to matter which lens I have on, Canon or Sigma.

The firmware is still 1.09 and I know there is newer firmware out there but the version descriptions do not mention a problem such as this.

Anyone??

thanks.

Probably a silly question but you are not hitting the lock by accident are you?

I've had cameras do weird stuff like that when the battery gets a bit low. Cold (30s, not 70s) can sap a battery. Try keeping a warm spare in your pocket.

Do you have a grip on the camera?

If you are set to use the big dial on back for shutter speed, you probably are accidentally bumping the dial lock switch by the way you're wearing it. I don't know the 6d, but if the lock is part of the power switch then when you power it off and back on you are pushing it back to the enabled position

rrblint wrote in post #15868271
Do you have a grip on the camera?

I had this problem on my 40D and 5D2. I had aftermarket battery grips, and they would (every now and again) cause the shutter speed control to stop functioning...

A quick flip off then on, always solved it.

If you don't use a grip, then perhaps check what the others have said about the lock button.

What about a flash?

Thanks all.

Out shooting Mesa arch this morn.
Yes it has a canon grip, batteries are stock, brand new canon brand.

I like the idea that perhaps I'm hitting the lock, I'll make sure to look at that. The camera swings quite a bit in this position and does brush against my leg. I have often noticed that some settings have changed when I try a new shot after it has been down and I have walked a ways.

Batteries are charged up full, also used backup AA cells with same results.

I'll keep you posted on what I find

Tks again for all the responses

Are you using the main dial by the shutter release button or the back quick control dial to change shutter speed? If you are using the main dial by the shutter button, be advised that if the main dial by the shutter button on the grip is caught between two click-stops it will disable the main dial on the camera so that it will not work.

I suspect that your method of carrying the camera may be causing the grip main dial to shift slightly between two clicks. Next time this happens try wiggling the main dial on the grip to make sure that it is stopped exactly on a click-stop, then try using the main dial on the camera normally.

Sorry for the delay in replies, internet is spotty. Still haven't figured this out yet, but believe it is due to the way that the camera is being carried. Right now am turning off the camera between shots while I am moving.

Tks all for the advice.

When mine had this issue it was because the wheel on the grip was 1/2 way between clicks. Make sure it is not stuck like that.

nope, its not the wheel on the grip. Checked that many times.

I was down in lower Antelope today, camera on the tripod all the time and it still randomly (at least to me) stops responding to changing the shutter speed with the main dial.

If I power down the camera and restart then it responds fine for 5 to 10 minutes then does the same thing all over. At this point I am more concerned with still being able to take pictures to finish out my vacation than trying to systematically figure this out. Frustrating tho. I can't believe its temperature as it was doing the same thing up at Moab with the temperature below 60 deg. F.

Ratjack wrote in post #15878078
When mine had this issue it was because the wheel on the grip was 1/2 way between clicks. Make sure it is not stuck like that.

This. This is the only thing that happens on mine.

Hopefully you're not having an electrical issue with your camera. Mine has a problem where the shutter will not work at all, and it is very hard (have to keep turning the camera off and on) to get the MENU, Quick Control and INFO options to work. Called Canon about this and found out this brand new 6D has an electrical problem that needs repair. Am seriously bummed out by this as am going to Yosemite in late May and have no idea if I'll have a working 6D by then.

Ok, back in the land of high speed internet. I have to take back what I said about the wheel on the grip. Just spent the last day and a half in Bryce, carrying the camera forward on my body as opposed to my side. The one time that the shutter was not able to be adjusted via the main wheel, I rotated the wheel on the grip and Voila! full functionality back again. So I think that ratjack nailed it even though I had said that I had checked the wheel many times.

Thanks for all your help.