D800 with 24-70mm and VR question.

Turn it off at fast shutter speeds. At lower shutter speeds turn it on and enjoy the benefits. Unless you own the Nikon 24-70. Then you can crank up the ISO or use a tripod.

Overall the VC makes the Tamron more versatile. For those who worship websites...

http://www.cameralabs.com/reviews/Nikon_vs_Tamron_24-70mm_comparison/

And the verdict of that review is reasonably on target and why I finally sold my 24-70 2.8, never bought the very good Tamron 24-70 VC and live happily with a 24-85vr. It's odd because I'm a big believer in fast glass. But the 24-85vr really does what my 24-70 did and does it more easily, adds VR versatility and it doesn't weigh or cost a ton. I know my copy is every bit as sharp as the 24-70 2.8 and I simply get more done with it.

Nice to have choices in any case!

Robert