Quote:
Originally Posted by robski
When you look at the world at the atomic level things are never completely still so in theory you will never get 100% camera shake free image. This is partially true in the field of measuring things, it is unlikely to get 2 measurements the same. So what we do is take hundreds of measurements and perform some analysis on the numbers to get a realistic value.
It really is a question of getting acceptable sharpness, i,e sharper than the eye see, when the eye can perceive blur it becomes unacceptable.
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OK so you can't 100% eliminate shake, but a movement of 1mm on the sensor is huge. Surely any shot with this much movement would so far too much blur regardless of crop factor. For me accpetable sharpness would be looking sharp when viewed at 100% (then I know I can print as big as I want) and I can acheive this at the same shutter speeds regardless of crop factor.