Does Nikon 12-24mm and Sigma 12-24mm have the same performance, which one is better?

Does Nikon 12-24mm and Sigma 12-24mm have the same performance, which one is better?

Added (1). *New in Photography, Thanks in advance c

If you're camera isn't Nikon, its better to go with Sigma for compatibility. Being a 3rd party company they support most major brands of DSLR. While Nikon lens may not be completely supported by a DSLR Cannon.

Otherwise, its best to check review between the two.

If you're trying to compare a brand (Nikon) to a mass market (Sigma) lens, then it's probably safe to guess you've got a Nikon camera.

If you have the money, get the Nikon, no question. Nikon lenses have generally been outstanding.
The question is, will you notice the difference? Honestly, most amateurs won't.

Here is a review of Nikon's Nikkor 12-24mm lens.
http://www.photozone.de/...rt--review" class='ext_link'>http://www.photozone.de/...rt--review

and one of the Sigma
http://www.photozone.de/nikon--nikkor-aps-c-lens-tests/229-nikkor-af-s-12-24mm-f4g-if-ed-dx-lab-test-report--review

You didn't ask, but the Tokina 12-24mm did better than the Sigma
http://www.photozone.de/...na1224dxii

And, the Tamron 10-24mm did rather well too.
http://www.photozone.de/...3545_nikon