> > > >Hi Felix, > >I've rented one, and an EF 85 1.2 L and once was enough for me for both of >these lenses. This is a very sharp lens if stopped down two or three stops. >It's big and heavy, not a big deal actually IF it offered some advantage to >the shooting situation, but it's so slow focusing that I missed a lot of >shots (that could easily been captured with the EF 50 1.4), I wanted and due >to the very, very shallow DOF when used wide open there is ZERO room for >error. This can be a problem if you are trying to shoot a model that is >moving around. The EF 85 1.2 L has all of the same problems and image >quality of the EF 50 1 L. I can't believe that Canon thought they could >actually sell many of these given the painfully slow AF performance and cost >but they ARE both very sharp lenses if used under just the right conditions. > >Regards, > >Chip Louie > I believe that the slow AF speed is caused by the big piece of aspherical lenses in the lens. In order to get such large aperture, the big a heavy lenses use is essential. However, you have to consider the sharpness and the quality against the AF slow in this issue...
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