How do I test my len's IS (OS) is working?

Discussion in 'Photography Forums' started by Furq, Jan 31, 2009.

  1. Furq

    Furq
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    I have the Optical Stabilizer on my Sigma 18-20mm f3.5/6.3 switched on... but I'm not convinced it's working.

    I'm getting some blurry shots, and I've never seen the image 'jump' in the viewfinder (or heard a small noise), like a Canon with IS.

    How can I test the OS is working?
     
  2. Throttle

    Throttle
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    Try taking a photo handheld with it turned on and then another without it turned on but all the rest of the settings the same then compare both photos.
     
  3. Jas H

    Jas H
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    I only have Canon lenses with IS, but when I switch it on, I can see the image in the viewfinder becomes noticeably more stable. It's very apparent.
     
  4. Jonny1973

    Jonny1973
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    On Canon's you can usually hear the motor whirring if you hold it up to your ear.
     

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