Autofocus Problem solving

Autofocus Problem solving

2x teleconverter for Canon Extender EF 2x II (eg for Canon EOS 1D Mark IV, 1D Mark III, 5D Mark II, 5D, 7D, 10D, 20D, 30D, 40D, 50D, 60D, 300D, 350D, 400D, 450D, 500D, 550D, 1000D, ...) (Electronics)
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Customer Review

The product works very well except for the autofocus. The only works in LifeView.
But he is so slow that the product is unusable.
I have complied with all the instructions given. Nothing availed.
I have also never aperture 2.8 überschrittenmit lenses.
Do not buy but the originals of Canon.

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