Overall, the camera has a classic look that is very appealing. The on/off switch is a round knob on the left side of the camera top and reminds me of the a slightly smaller version of the film rewind knob on very old Leica cameras. In fact, most of the controls on the Pen-F are round. According to Olympus that’s partially because, in the time that the original Pen-F was made, it was less expensive to mill round pieces than it was to make square metal parts. So, in homage to that, the new Pen-F has a round EVF eyecup. We’re not sure if it’s just a quirk of early samples, or the shape of the rubber on the eyecup, but on a few occasions, the sensor that recognizes when you hold the camera up to your eye didn’t work properly, thus not switching to the EVF. You can work around this by manually switching ot the EVF, but it was a tad annoying when it did happen.