image stabilizer

do you turn off I.S ror sports shots?

No. It's true that at high shutter speeds often used to shoot sports, IS doesn't offer any real benefit for the shot itself. But, it stabilizes the image in the viewfinder before the shot, which can help with framing and composition.

Real photographers don

Real photographers know when to use IS and when not to use IS.

Yes I turn mine off, I don

I leave mine on as a rule. In addition, some lenses, like the EF 70-200mm f/2.8 <span style="color: #ff0000;"]L IS USM, have a panning mode which I use for sports such as soccer.

I

Since it only stabilizes camera shake I turn off for tripod use but leave it on for handheld work with long lenses.

I leave it on unless it