Can you suggest a web site that make ratings and reviews for Camera Lenses?

Like Canon, Tamron, Sigma lenses... with rating, votation and comparison...

check these
http://www.fredmiranda.com
http://www.shutterbug.net
http://www.popphoto.com

wtf???

Here's one very informative site I like.
http://www.cameralabs.com/

And another one.
http://www.photozone.de/8Reviews/index.h...

I hope this helps you.

I Wouldn t have a Clue...

Sorry..

www.photodo.com is a good one...

Not all are tested but the best are reviewed here:

http://www.kenrockwell.com/tech.htm

There's some overlap with the other answers, but here's a list for Canon cameras:

Canon Lenses and Reviews

http://www.the-digital-picture.com/Canon...
(See "Recommendations" on this page)
http://www.photo.net/canon/#lense
http://www.wlcastleman.com/equip/reviews...
http://www.photozone.de/active/news/inde...
http://www.bobatkins.com/photography/ind...
http://www.fredmiranda.com
http://forums.dpreview.com/forums/forum....

photozone.de

slrgear.com