Image Stabilization lens help

Discussion in 'Beyond the Basics' started by njm1216, Apr 4, 2008.

  1. njm1216

    njm1216 TPF Noob!

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    I have a Canon 28-135mm IS lens that I'm having a lot of trouble with. I can never seem to get a tack sharp image with it. Most images are out of focus when hand-held with IS on. My Canon prime 60mm 2.8 gets me excellent results. Could the zoom be the problem? Does anybody have experience with this lens? Is there a special way to hold the camera when IS is on? Any clues as to what could be going wrong? Thanks for any insight. ~Nan
     
  2. JimmyO

    JimmyO TPF Noob!

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    What shutter speed were you using?
     
  3. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    Welcome to the forum.

    We need more details to diagnose the problem. It would really help if you could post an example along with the EXIF data.
     
  4. njm1216

    njm1216 TPF Noob!

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    I've used all different combination of settings, ISO, shutter speed, aperatures, etc...nothing seems to improve focus.
     
  5. njm1216

    njm1216 TPF Noob!

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    I don't use automatic settings. Like I said, I don't have this problem with the prime lens...only the zoom with IS. I'm baffled.
     
  6. JerryPH

    JerryPH No longer a newbie, moving up!

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    Again, just telling us you have a problem without sharing EXIF data or a sample pic means nothing.

    "My car is broke... fix it please?" < That kinda thing. ;)

    Help us to help you!
     
  7. Mystwalker

    Mystwalker TPF Noob!

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    Try putting camera on a tripod - take photo - remember setting.

    Remove from tripod, take same photo hand-held with same settings.

    If your hand-held is not as sharp as your tripod shot ... you know it's "user error" :)

    Otherwise, maybe a lens issue?
     
  8. njm1216

    njm1216 TPF Noob!

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    I'm hoping for general ideas and tips from anybody who has experience with this lens or with any IS or zoom lenses and would be willing to share tips on using a lens with IS. Most all of my images are slightly off, when viewed at 100% and are just not as sharp as with the 60mm.
     
  9. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    It's certainly possible that your lens is out of alignment. However, 90% of the time, it comes down to user error, we we want to rule that out first.

    Could it be that your 60mm is just that much sharper than your 28-135mm?
     
  10. Socrates

    Socrates TPF Noob!

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    You can't test an IS lens on a tripod. The lens will actually cause shake! If you're taking a real pic, you need to turn off the IS.
     
  11. Socrates

    Socrates TPF Noob!

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    What was your shutter speed? What was the focal length setting?
     
  12. Village Idiot

    Village Idiot No longer a newbie, moving up!

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    Newer Canon IS lenses will disengage IS when it sense it's on a non moving platform...like a tripod. It just sucks down batteries instead.

    OP: Are you comparing a zoom to a prime? Primes are going to be sharper and if you're shooting RAW, the images need to be sharpened out of the camera anyways.
     

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