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A few birds and auto-focus be damned.
On 4/3/2018 8:36 PM, Savageduck wrote:
On Apr 3, 2018, PeterN wrote (in article ): On 3/16/2018 12:34 PM, Savageduck wrote: snip The important thing to remember when it comes to IS/OS/VR is that it is there to provide a fix for camera shake, not subject movement, and once you have a shutter speed over 1/500 sec IS/OS/VR is irrelevant as the high shutter speed should freeze all subject movement. Since you shot those ducks at 1/2000 you could probably have managed without IS. I usually turn off IR for any critter tracking, as it slows down the tracking a tad. The shutter speed stability depends on the user's individual hand stability, speed of the critter, and the focal length of the lens. I am not too sure that “shutter speed stability” is the term you are looking for. This is the first time I have heard it used. If when shooting handheld, and you have a static target/subject, relatively slow shutter speed (usually slower than 1/120-1/80), and a longer focal length IBIS, or ILIS (IS/OS/VR) is going to be a great help.The greatest benefit will be found with handheld landscapes, or portraits. When it comes to moving targets/subjects a shutter speed, direction of movement relative to the photographer, and camera handling techniques are going to be far more beneficial than any mechanical stabilization. The only time stabilization can help with a moving target/subject is when the movement is directly away, or towards the photographer. When shooting with a panning motion the camera is stabilized by the inertia imparted to the camera system by the lateral movement of the camera tracking the target. i am talking about shooting fast moving objects, at a high shutter speed. I agree that IS is indispensable for slow moving objects and when shooting at slow shutter speeds. -- PeterN |
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