LensTip.com

Lens review

Sigma 100-300 mm f/4 DG EX APO IF HSM

27 September 2007
Arkadiusz Olech

10. Autofocus

The Sigma 100-300 mm is equipped with a High Speed Motor (HSM), which makes its autofocus performance fast and quiet. Unfortunately, this particular model that we tested had a small flaw that is common with other Sigma lenses (especially when working with a Canon body: front focusing.

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Sigma 100-300 mm f/4 DG EX APO IF HSM - Autofocus