Shake Reduction when using high shutter speeds
Posted 03/07/2009 - 18:02
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MrSpigot wrote:
Surely the sensor can't be stable before the shutter is pressed as I presume it needs to be correcting in the opposite direction of the camera body movement for the time the shutter is open. So it's only when the shutter is pressed that it *starts* doing it's stuff. I don't see why the shutter speed should affect it's ability to make a mistake in that respect, or as you suggest, why SR shouldn't work just as well on shorter speeds. After all, the camera body isn't being vibrated more rapidly, it's just doing the same SR for a shorter period.
The shuter have two settings, half pressed and fully pressed.Anvh wrote:
It stabilize itself before you fully press the shutter release (usually)
Also under such condition the SR hardly has time to make a mistake.
If it can keep the sensor still with long shots why not with short shots?
I don't get what you're saying, or I don't understand how SR works, which is very possible.It stabilize itself before you fully press the shutter release (usually)
Also under such condition the SR hardly has time to make a mistake.
If it can keep the sensor still with long shots why not with short shots?
Surely the sensor can't be stable before the shutter is pressed as I presume it needs to be correcting in the opposite direction of the camera body movement for the time the shutter is open. So it's only when the shutter is pressed that it *starts* doing it's stuff. I don't see why the shutter speed should affect it's ability to make a mistake in that respect, or as you suggest, why SR shouldn't work just as well on shorter speeds. After all, the camera body isn't being vibrated more rapidly, it's just doing the same SR for a shorter period.
When you half pressed it the SR will already settle itself and gets ready when you fully press the shutterrelease.
What I mean with the mistake bit.
if it has 1/400 of second to move a wrong way or 1/4 of a second it's most likely that it has more problem keeping the 1/4 shot steady.
With test you see that the faster shots are so good as evenly sharp with fast shots and with a bit longer shots then recommended you can clearly see the difference between SR on or off.
with very long shots you will probable move to much for the SR resulting in still better photos then SR off but they mostly aren't 100% sharp anymore.
what I'm getting to is if the SR can make the difference for long shots why wouldn't it work with faster shots?
It might even compensate you pressing the button
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
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6913 posts
17 years
Co. Durham UK
I was going to point this out too! I had asumed that the SR system took into account the focal length and the currently selected shutter speed. This is why using SR on a tripod with low shutter speed causes problems.
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