Review on Canon EF 100mm f/2.8L IS USM Macro Lens for Canon DSLR Cameras - Lens Only by Virot Mon ᠌

According to first impressions, of course, there are more positive emotions from this lens, but there are also negative ones. I was a little disappointed with autofocus, this is my first USM, and I confess I expected more from it. It turned out that it works noticeably loudly and not as fast as they write about it in the reviews. In low light, for example, in a room with the lights on, it takes a very long time to catch focus. In this regard, the PZD tamron motor is much better, it works both quieter and faster.