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| Computational Photography |
If you want sharper sports photos, and you have lenses that use VR (Vibration Reduction
on Nikons) or IS (Image Stabilization on Canons), you should turn this off. There are two
important reasons why: (1) the VR (or IS) slows down the speed of the autofocus, so it can
stabilize the image, and (2) since you’ll be shooting at fast shutter speeds (hopefully
at 1⁄ 1000 of a second or higher), you don’t get any benefit from VR (or IS), which is designed
to help you in low-light, slow shutter speed situations. In fact, it works against you, because
the VR (or IS) system is searching for vibration and that can cause slight movement.
Normally, that wouldn’t be a problem, because you want VR (or IS) to do its thing in low
light, but in brighter light (and faster shutter speeds), this movement can make things
less sharp than they could be, so make sure you turn VR (or IS) off.
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