No IS on Tripod
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IS lenses look for vibrations to reduce – if there aren't any (when locked on a tripod) the lens looking for vibration can cause vibration (feedback) resulting in some camera shake.
Some lenses will have 'tripod detection' built in so you can leave it on.
Some lenses will have 'tripod detection' built in so you can leave it on.
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andyred
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Yes, even for those lenses that can auto detect mounted to a tripod, it is still worth switching IS off.
The Sigma 10-20mm does't have IS
AshleyC
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There is a great thread in the basics forum where someone posted images taken from a tripod with vr on and off. It was pretty pronounced just how much of a difference there is.
oh its here http://www.talkphotography.co.uk/forums/showthread.php?t=430997 but the images are gone now. Shame.
oh its here http://www.talkphotography.co.uk/forums/showthread.php?t=430997 but the images are gone now. Shame.
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Canon 100-400. No tripod detect...
Canon 24-105. With tripod detect...
Looks conclusive. Presumably also a problem with panning video.
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hollis_f
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Nope. The 100-400 has a special IS mode for panning where it ignores movement in the horizontal and only compensates for vibration in the vertical.