White Images? Over exposed

[mwilson]

I am using a 50mm fixed on the 5D III.  I will take a about 100 images and then I get an over exposed image. Then I take a few more and I get another over exposed image. I have tried the eraser trick to clean the senor on the lens. Any other suggestions, hints, anyone else have this problem?

Thanks,

M

[David]

What exposure and metering modes are you using?

[mwilson]

I am shooting manual, f8 at 1/30, the ligthing condtion are not changing.  It aprears to be something with the lens.

[cicopo]

I haven't read any similar complaints at the forums I frequent but it does sound like either a lens problem or a communication problem between the body & lens. There are however several threads about issues with sharpness when using the 50 f1.2 L . Even the 50 f1.4 seems to get it's share of sharpness / build complaints.

[BrickR]

What mode are you in? Av, Tv, M?

Before you take the picture, is the camera meter saying it's overexposed? (flagging all the way to the right of the meter)

[BKA]

Do you have something like "shadow priority" on?(as opposed to the Highlight tone priority)