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| p.1 #10 · Normal range zoom IS: Limited application or in-dispensable? |
It depends what you shoot
-as you say, it's not much use if your subject moves, and often you need to keep your shutter speed up to freeze subject motion
However there are times when it is useful, such as low light still scenes, and deliberately using a slower shutter speed to allow motion blur while keeping non-moving parts of the scene sharp (eg blurry water shots while hiking without a tripod, or blurring an athete's movement)
So it's a feature I'd like to have if it's offered.
There are several examples of the non-IS version of a lens being sharper than the IS version (eg 70-200 2.8 IS Mk 1 Vs the non-IS, or the Tamron 17-50mm 2.8 VC Vs the non-VC)
- however recently Canon have shown that they can build lenses with IS with no IQ sacrifice (eg 70-200 2.8 IS Mk II or the 100mm 2.8 IS Macro)
Perhaps a 24-70 IS is a challenging optical design, however I do miss my 17-55 IS on full frame.