Je n'ai pas cet objectif. Toutefois il a ete teste par Juza (Juza Nature Photography).

Ces conclusions :

"I highly recommed it to landscape photographers with fullframe cameras (Canon 1DsIII, Nikon D700, etc) that wants the widest angle of view, but keep in mind that there is some sample variation - if your copy does not performs as well as I showed in this test, I'd recommend to send it back and try another copy."

Donc la qualite de cet objectif n'est pas constante, il faut en essayer plusieurs avant de trouver celui qui convient bien.