noticeable astigmatism,, average work against the light,, autofocus can get lost in worse lighting.

Looking at the list of pros and cons of the tested Olympus and other 70-200 mm f/2.8 lenses, produced by Canon or Nikon, we see that the Olympus fares a bit worse. Is this a serious problem? I don’t think so. Don’t forget that the ZD 50-200 mm costs...