About OSS degrading image quality

Started Apr 29, 2013 | Questions thread
smallLebowski
Contributing MemberPosts: 536
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Re: Physics 101 :)
In reply to jk2l, Apr 29, 2013

Zeiss is right, but prefers to hide complete answer.

When you have IS in the lens - this means that there is a "floating" element at all times. Now, when you hold your camera in hands - that's a good thing. However, when you have your camera on tripod - then this floating element will do harm, due to that element will keep floating (very little of course - maybe micrometers or even nanometers) and essentially it will result in smudge pixels right?

What we need is parking system - if that floating element can be parked (fixed) when needed (basically on/off button) - then there should be no degradation in IQ.

Also, when you turn on/off in the menu (not on the actual lens) you may be just switching off software responsible for stabilisation, but floating element will continue to float in the lens. So, eventually it all depends if your lens has parking system for that floating element.

That's how I see it - I maybe wrong.

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