Have you used these lenses? Nikon, tamron, or sigma 70-200mm f2.8?

Have you used these lenses? Nikon, tamron, or sigma 70-200mm f2.8?

Added (1). I need a good 70-200mm f2.8 dx lens for a nikon body, I have hands on experience with the sigma version, but haven't used the tamron or nikon variants. I was wondering if you could offer any perks of either or compare them if you have used any or all of them.

These lenses are out of my price range, but I found some reviews for you.

Nikon review
http://www.photozone.de/...est-report

Sigma review
http://www.photozone.de/...est-report

Tamron review
http://www.photographyblog.com/reviews/tamron_sp_70_200mm_f2_8_di_vc_usd_review/
Tamron review of macro version
http://www.dpreview.com/...00_2p8_c16

This place compares all three
http://www.cameralabs.com/reviews/Tamron_SP_70-200mm_f2-8_Di_VC_USD/

The f/2.8 versions are considerably more expensive than the f/4 versions. Do you need that 1 stop of light?

You might find this You Tube material useful… Enjoy.