10d Overexposing everything....

[Croasdail]

okay... I think I know the answer this is going to end with but before I ship my 10d off to the shop I wanted to see if I am missing anything. A few days ago my 10d started overexposing everything by between 1 1/2 and 2 stops. I have gone in and reset the camera clearing any custom settings - but to avail. I tried cleaning what I could clean... douible checked the contacts for the lens - but it is still messing up. I can go to manual and set it that we and it works just fine.... so it is absolutely a metering issue. Is there something I missed - a user selectable calibaration? Thanks for any suggestions...

Also, since this is likely heading into the shop... any recent experience on how long I can expect this camera to be gone? I would hate to have this be my excuse to take advantage of the $100 rebate being offered on the 20d.

thanks.

[jimlp]

okay... I think I know the answer this is going to end with but before I ship my 10d off to the shop I wanted to see if I am missing anything. A few days ago my 10d started overexposing everything by between 1 1/2 and 2 stops. I have gone in and reset the camera clearing any custom settings - but to avail. I tried cleaning what I could clean... douible checked the contacts for the lens - but it is still messing up. I can go to manual and set it that we and it works just fine.... so it is absolutely a metering issue. Is there something I missed - a user selectable calibaration? Thanks for any suggestions...

Also, since this is likely heading into the shop... any recent experience on how long I can expect this camera to be gone? I would hate to have this be my excuse to take advantage of the $100 rebate being offered on the 20d.

thanks.

Have you checked exposure compensation? Anyway I have sent 2 lenses and my 20D body in for service on seperate occasions and I usually have the camera back in 1 week to 10 days, usually a week but I live in Mass. which is a 1 day delivery even by Ground shipping. Good luck, don't worry Canon will fix it.

[scottbergerphoto]

Have you by any chance inadvertently moved the thumb wheel and dialed in some + Exposure Compensation? Check to make sure that in P Mode, the needle in the viewfinder is in the middle. If not dial the thumbwheel counter clockwise to put it back.

[iwatkins]

Tried a different lens ? Could be the lens you have is not stopping down.

Ian

[Croasdail]

Thanks Guys -

I have been on 3 photo shoots since this started happening a couple of days ago. I have tried every mode - and the only one that is working properly is Manual. Todays was a pain because it was partly cloudy and light conditions were changing by the minute. I will try tomorrow with a different lense, and see if I can use exposure compensation so I can use AP mode so I don't have to manually meter. Other then that - I guess it is off to the shop.

Thanks again for taking the time to reply.

[TonyKInTexas]

It sounds like exposure compensation is set. I did it once with a flash unit by mistake.

Thanks Guys -

I have been on 3 photo shoots since this started happening a couple of days ago. I have tried every mode - and the only one that is working properly is Manual. Todays was a pain because it was partly cloudy and light conditions were changing by the minute. I will try tomorrow with a different lense, and see if I can use exposure compensation so I can use AP mode so I don't have to manually meter. Other then that - I guess it is off to the shop.

Thanks again for taking the time to reply.

[robertwgross]

I agree. It sounds like Exposure Compensation is set.

---Bob Gross---

[Simon Spiers]

I agree. It sounds like Exposure Compensation is set.

---Bob Gross---
Is it ?:

[Motorsports Photo]

I had this exact same problem with my D30 and now my 10D is showing the signs of going off too.

Sending it back to Canon seems to be the only solution.

-Pete

[Croasdail]

Sorry all - busy day.

I played with exposure compensation in Av, Tv, and P modes. To get exposures to work correctly I need to set Tv, Av and P to 2 stops underexpose. So, with that said - I can work with this so long as I don't need to compensate any further. The automatic modes are still useless - they are horribly overexposed - but I can live on the other side of the dial.

If there is a way to calibrate the camera to 2 stops underexposure, I could solve the problem perminately.

At least I can shoot again until I decide I can part with the camera long enough to send it in for a perminate fix.

Thanks all - this really helped!

[robertwgross]

If there is a way to calibrate the camera to 2 stops underexposure, I could solve the problem perminately.

One way is to set the Exposure Compensation for -2.

---Bob Gross---

[Croasdail]

Setting Exposure Compensation to -2 is only impacting Tv, Av, and P... - all the automatic modes seem not to use this setting. I don't use these modes - but I am going to send it into Canon end of this week so I can get it back before the US Open. Thanks for all your comments and help.

[Barb42]

Happened to me once with my 10D. I reset the camera settings and all was well.

[Todd Jacobsen]

okay... I think I know the answer this is going to end with but before I ship my 10d off to the shop I wanted to see if I am missing anything. A few days ago my 10d started overexposing everything by between 1 1/2 and 2 stops. I have gone in and reset the camera clearing any custom settings - but to avail. I tried cleaning what I could clean... douible checked the contacts for the lens - but it is still messing up. I can go to manual and set it that we and it works just fine.... so it is absolutely a metering issue. Is there something I missed - a user selectable calibaration? Thanks for any suggestions...

Also, since this is likely heading into the shop... any recent experience on how long I can expect this camera to be gone? I would hate to have this be my excuse to take advantage of the $100 rebate being offered on the 20d.

thanks.

Can you give apeture/shutter settings that are occurring with this?

I was frustrated with HIGHLY over blown pictures and was surprised but the outcome on my 20D. Once I evaluated the apeture setting (1.8), shutter speed (8000) and the SCENE (snow, morning)...the problem became obvious...

Not saying this is your issue but stopping down may not be occurring (or shutter not maxing out) and analyzing this may help determine source.

[iwatkins]

If the lens is stopping down (look into the lens while holding down the depth of field preview button, you'll see the blades move), then I would be looking at the metering sensors within the chamber.

Pop up the mirror as you would for a clean and check you don't have a big chunk of dust/fluff over the metering sensors which IIRC are at the bottom of the chamber (or is that the AF ones ?).

Cheers

Ian

[Croasdail]

Thanks again to everyone who offered help. I cleaned the inside - tried different lenses - nothing is working and it is slowly getting worse. I can only shoot manual now as even calibrating down 2 stops is not enough. In a test this morning it was metering at 1/2 second with f5.6 when actual exposure wase more like 1/500th. I am shooting my nieces last soccer game this afternoon then of to canon it goes. Thanks again for all your suggestions.

Cheers!