Hi, I have recently purchased a 1.4 Mk 111 teleconverter. I am using it with a 100 to 400 Mk 11 telephoto on a 6D Mk 1 body.
Should the auto focus work as it is not and I am having to use manual focus. If it should not work then what body do I need in order to get this facility.
Should the auto focus work as it is not and I am having to use manual focus. If it should not work then what body do I need in order to get this facility.
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