Jim Arnott wrote:
I've just got my 28-135mm IS and tried the IS on a tripod. My tripod
is the best Walmart Velbon you can get :(
The first thing I noticed is that when I hit the tripod leg you can see
the vibration even when the IS is activated. This tells me that the IS can't
overcome the higher frequency vibration that come from being on a tripod.
When you hand hold your, hand moves at a much lower frequency and can keep
up.
Make sense ?
Just my theory. Try it out.
__________________________________________________________________________
Jim,
Makes some sense, but my sugestion would be not to hit your tripod.
No sarcasm intended Jim, but even using a lens without IS why would you hit
your tripod?
Use the tripod for added stability much like handholding your SLR and
leaning on a tree.
I used a remote cable release (RS-80N3)with my EOS3 and 28-135IS (IS is On)
mounted on a Bogen tripod.
I focus (sometimes AF, sometimes MF) and use the release to trip the
shutter.
Granted IS may be superfluous at times in this setup, but it doesn't hurt
when using a 1/4 second shutter speed.
I have also used my 100-400mm on a tripod with IS on and its fine.
Peter K
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