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Old 02-19-2009, 04:08 PM
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I've been doing a lot of checking on this. Older IS models didn't seem to be tripod friendly. The manual states,
Quote:
  • When you use a tripod, the Image Stabilizer should be turned off to save battery power.
  • The stabilizer is equally effective for hand-held photography and photography with a monopod.
No mention of tripods anywhere.
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Old 02-19-2009, 05:25 PM
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Just another random thought - if it was windy and you were doing longish exposures, could it be motion-blur, moving trees, leaves etc?
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Old 02-19-2009, 08:52 PM
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I did a search and found this on the DPS. I knew I read somewhere that an IS or VR lens will look for movment while on a tripod, and can actually cause problems.


Image Stabilization (and vibration reduction) lenses look for vibrations in your camera in order to reduce it - however if they don’t find any (like when you are using a Tripod) they actually can cause it - and as a result actually cause camera shake.

http://digital-photography-school.co...ion-on-tripods
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Old 02-19-2009, 08:58 PM
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Thank you all for great feed back...

too bad for all those photos taken from Griffith Observatory and Mullholand Drive of LA at night.

Just by chance, I arrived just in time for sunset at Venice Beach and did not have the time to set a tripod. The hand held results turned out to be better.

Lession learned. I hope I remember because many times I find myself forgetting the camera on the previous setting when moving from one place to another... it is frustrating when you need to shoot fast.
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Old 02-20-2009, 01:32 AM
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According to my manual you don't have to turn off IS when using a tripod. I believe the newer IS lenses do not need to have the IS switched off unless you want to save battery power.
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