Sigma 12-24 first impressions

Started Dec 1, 2003 | Discussions thread
alex Regular Member • Posts: 495
Re: AF errors

Stefan Schott wrote:

I was afraid you would say that. Obviously Sigma still didn't get
to grips with Canon's AF. I have experienced AF errors, huge at
times, with all Sigma lenses I have owned/tried, namely the 15-30
EX, 24-70/2.8 EX, 24-135/2.8-4.5, 70-200/2.8 EX, 100-300/4 EX,
300/4 Apo Macro HSM and 120-300/2.8 EX. It seems Sigma just don't
have what it takes to make their lenses focus accurately on Canon

I can't understand this. The camera is the thing that decides whether the image is in focus or not. How are any focus problems the fault of the lens?

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