The bad ass cousin comes home. The (USD 7000) Four Thirds 300mm f2.8 prime lens finally gets to tango with its petite cousin, the EM-1, for the first time. A little awkward but they dance in sync straight away. One of the headline features of the new EM-1 is the Dual Contrast AF and On-Chip Phase Detection AF. The latter allows the older Four Third lenses (designed for mirror cameras) to focus almost as fast as the m43 lenses on the EM-1.
Continuous AF tracking works fine when paired with the monstrous 300mm but I didn’t get to compare it to a rival system to gauge its acquisition speed or tracking accuracy. Stand alone, it works great on regular moving subjects. I haven’t had much luck finding birds in flight to test, though. The weather was awful (low light) during the time I had the camera. I did try it with the m43 75-300 mm and it focused faster than on the EM-5.
Since AF now works faster with Four Third lenses, will I go out with my battery of dusty Four Third lenses?
See next page for Image Samples…