Canon EF 200/2.8 overexposing and errors

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Baracuda Junior Member • Posts: 48
Canon EF 200/2.8 overexposing and errors

My Canon EF 200/2.8 USM is around 10 years old and recently started overexposing images. After running the same shot through all the f-stops it is clear that the camera exposes correctly at f2.8 and increasingly overexposes the higher the f-stop with f8 already being severely overexposed.

I am also getting occasionally error messages regarding the contacts of the lens but the contacts are clean and not damaged.

I have the same issues with this lens on my Canon 80D and older 40D. All my other lenses work great with these bodies.

Any ideas?

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Canon EF 200mm f/2.8L II USM Canon EOS 40D Canon EOS 80D
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