Canon 5D MK III Flashing AF lights

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SimonJenkins
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Canon 5D MK III Flashing AF lights
4 months ago

Hi

This is my first post after having been an 'observer' and admirer of this forum or site for it's reviews. Hopefully this is in the right place.

I recently purchased a 5D MK III but just the other day, I noticed that the vertical non-cross type AF points are now flashing. As I understand it, this should only happen when a) you are in AI-SERVO, or you have manually selected one of the non-cross points. In my case, neither is true. However I did attach a non-Canon 2X converter onto to the body, with a Canon 50mm F1.8 lens, and got a message along the lines that the lens was unable to communicate with the camera. The 2X converter however had been working fine on my 70D with a combination of Canon and Sigma lenses.

I therefore think I have 'broken' the camera and confused it by using a non-canon converter. Would you agree? Otherwise besides the blinking lights, everything else is working fine.

Thanks

Simon

 SimonJenkins's gear list:SimonJenkins's gear list
Canon PowerShot G15 Canon EOS 5D Mark III Canon EOS 70D Canon EF 50mm f/1.4 USM Sigma 10-20mm F4-5.6 EX DC HSM +3 more
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Canon EOS 5D Canon EOS 70D
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