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M6 II "hidden features" thread

Started Jan 17, 2022 | Discussions thread
Alastair Norcross
Alastair Norcross Veteran Member • Posts: 9,874
Re: M6 II "hidden features" thread
1

wddxnyr wrote:

That is simply not true. The IS is not even close to 4 stops in the real world at 200mm. Just compare your handheld shot with a tripod shot and the difference is clear. I did my comparison with a 5dsr and ef 70-200 f4 (also rated at 4 stops) years ago.

It seems you don’t understand what 4 stops of IS is claiming. The claim is that the IS allows you to get the same level of sharpness in a handheld shot (of stationary subject, obviously) at a lower shutter speed with IS enabled than without IS enabled. How much slower? 4 stops slower, which is 1/16 the shutter speed. So, with IS the handshake you get at, say, 1/100 would be equivalent to to what you’d get at 1/1600 without IS. The comparison is one handheld shot with another. Making a tripod-mounted comparison is completely irrelevant to IS effectiveness, and, depending on whether your IS system plays well with a tripod, may be counterproductive. The fact that you tried to assess IS effectiveness by doing a tripod-mounted shot shows you don’t understand what IS is actually doing.

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As the length of a thread approaches 150, the probability that someone will make the obvious "it's not the camera, it's the photographer" remark approaches 1.
Alastair
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