I shot from a 30-foot high scissors lift with the K7 and a modest
tripod (a Slik carbon fiber). The lift wasn't perfectly still, but I
would wait to release the shutter until I couldn't sense any movement.
Shake reduction was on, and I experienced no problems.
On Aug 27, 2009, at 1:59 PM, Graydon wrote:
On Thu, Aug 27, 2009 at 07:50:27PM +0200, Ralf R. Radermacher
scripsit:
Graydon <[email protected]> wrote:
I've never needed to turn the shake reduction off in the K20D. If I
have the camera on a tripod on a really solid substrate -- bedrock,
concrete footings -- I don't get any benefit from it, but I
haven't seen
any harm from it, either.
I've just recenty noticed a rather strange phenomenon with my K-7:
I usually travel with two tripods. A heavy wooden Berlebach and a
simple
metal tripod that has the great advantage of being set-up literally
within seconds as you only need to push three locking tabs to make
each
of the legs unfold by spring force. Surprisingly solid and steady,
that
little thing.
Sounds very handy!
Put the K-7 with activated SR and Live View on the small tripod and
within seconds the whole combination of camera and tripod will
begin to
strongly oscillate at around 10 Hertz. Obviously some resonance
phenomenon triggered by the SR. Never seen anything like that before.
The reason I emphasized the "really solid substrate" part is that
trying
to shoot from a wooden observation platform often outright fails; when
there's a bunch of other people trooping across the platform behind
me,
the wooden surface bounces, and the relatively long-period oscillation
defeats the shake reduction. Nothing for it but to wait until they've
all passed by and try again.
-- Graydon
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