Sold Canon 100-400L (original) and purchased Sigma 150-600 C, and the following are my first shots with the new lens mounted to Canon 5DIII. I didn't experience front or back focusing, so no need for calibration, I'd think.
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2)IMAGE LINK: https://flic.kr/p/243XA9c
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IMAGE LINK: https://flic.kr/p/243XzeB
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IMAGE LINK: https://flic.kr/p/243Xz2T
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IMAGE LINK: https://flic.kr/p/243Xztp
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IMAGE LINK: https://flic.kr/p/EoLkz4








