Customer Review

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  paul

  1.0 out of 5 stars could be very sharp if well calibrated

  Reviewed in Canada on October 6, 2016

  Verified Purchase

  could be a sharp Lens. The problem is that it front / back focuses. So if I want to make it work properly, I have to buy the usb dock, wich adds a lot to the initial price.
  EDIT : I bought the usb dock and couldn't calibrate it correctly even after spending more than 5/6 hours. The autofocus isn't accurate
  I send it back to Sigma very disapointed

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