8 out of 10 points and recommendedSimply Better than the Nikon 24-70 f2.8 and much less expensive. Better center sharpness, better corner sharpness, better resistance to flare, better micro-contrast, better color, and of course it has VC as a bonus!Image quality unacceptable in corners, needs to be better. I need better image quality, even if I have to pay more to get it. Bokeh can be objectionable in some situations.
I saw this lens reviewed and advertised and it seems to be the only alternative to the Nikon 24-70 f 2.8. I really want/need VC (VR), but I doubted that the Tamron optical quality would be acceptable. Up till now, I have only bought Canon or Nikon lenses (not including my view camera lenses).reviewed January 5th, 2016 (purchased for $1,300)
I ordered 2 copies of the Nikon 24-70 f2.8 and also 2 copies of the new Tamron 24-70 f2.8 VC, all from B&H (they are always great).
I tested all 4 lenses scientifically and rigorously. Studio shooting with flash, architectural, landcapes @ infinity. One of the Tamrons was the clear winner. The other copy of the Tamron and both copies of the Nikon were unacceptable for my work. None of the lenses give truly sharp corners at any aperture or focal length. But the one Tamron was close enough to get by (I hate just "getting by") (f11 is the only aperture that gives tolerable results at all focal lengths on the best Tamron).
Anyway, the better of the two Tamrons clearly beat out both copies of the Nikon. Better center sharpness, better corner sharpness, better resistance to flare, better micro-contrast, better color, and of course it has VC as a bonus! The Nikon does focus a little faster, especially in low light, but in my studio people focus tests, I got more hits with the Tamron than with the Nikon. And of course the Tamron is about $1300 and the Nikon closer to $2000.
I would be GLAD to pay $2000, or even more, for an excellent lens. Nikon needs FAR better quality control - they should be ashamed.
Get the Tamron. It is not perfect, but is the best option available.
But whatever lens(es) you get, be sure to order at least 2-3 copies and test rigorously (if you care at all about image quality), as there can be huge variation from one copy to the next.
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