Last night I was doing some experiments on my NEX-6 with the 16-50mm kit lens vs a Minolta AF 50mm f/1.7 on an adapter. As the 16-50mm needs distortion correction in software, I was curious how the edges of an image taken with it at 50mm would compare with a 50mm prime. I didn't really reach a conclusion as I was having trouble getting the camera to take equivalent exposures with the two lenses. Set to aperture priority with both lenses, in lower-light conditions the camera consistently underexposed with the kit lens while pretty much nailing the exposure with the adapted lens. Interestingly, in bright light the differences in exposure between the two lenses went away. While trying to compensate for the underexposure with the kit lens, I became aware of something odd: dialing in exposure compensation doesn't seem to affect the live histogram. The histogram at the camera's chosen exposure showed serious underexposure, so I dialed in exposure compensation of +1. No change in the live histogram, so I dialed compensation up to +3. Still no change in the live histogram. I took a test shot and the resulting frame was very overexposed (with the histograms of the stored photo mashed up against the right edge). I find this to be very strange. I'm not all that thrilled with the camera taking away the live histogram while I'm making exposure compensation adjustments, but once I've finished the adjustment and gone back to the live histogram I certainly expect it to show me the effects of what I've done. Do I have something set wrong on the camera, or is this just the way it works?