AF Speed of Sigma 70-200 f2.8 EX APO IF (non-HSM) on Sony Alpha A850

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Uploaded by on Sep 16, 2010

this lens is a first verson of sigma 70-200 2.8 , there are no HSM. However, the AF speed is quite very fast athought it's a little bit noisy.

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Uploader Comments (manhyen)

  • For tracking sports does not having HSM make a difference?

  • @scavo2003 I have not used HSM verson yet, but based on my experience HSM verson will be more accurate and smoother.

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All Comments (6)

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  • Thanks for the video. This kind of videos are really helpful!

  • wow, I thought it buzzed more than that!

  • Have you used the lens in the video for sports or fast action?

  • Hmm, I'm just not sure whether to spend more money on HSM. If it results in more keepers while tracking, I would definitely buy one. If it doesn't result in significantly better results, then it's not worth it. But I can't find one used anyhow.

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