I'm fairly new at some of the more esoteric M43 options, but I have a couple of very nice condition, older Nikkor AIS lenses, the 105mm f/2.5 and 135mm f/2.8, and I"m wondering about the M43 adaptors for Nikon F-mount lenses to enable their use in manual mode on my GX7. Using the adaptor mounting one of these Nikkors on the GX7: 1. Will the EVF (which I realize is not in any way a ground glass, but is presumbly directly reporting an image passed to it electronically by the camera body's sensor) show a reliable image of "sharpness" as the lens is manually focused wide open? I understand that, after focusing, I'd close down the diaphram, using the lens barrel, to the shooting aperture. 2. Would "focus peaking" work in this process? 3. If the GX7 mode is aperture priority, would the camera body metering system adjust the shutter speed to the correct exposure based on the shooting aperture and set ISO at time of squeezing the shutter? 4. Would one instead set the GX7 for manual mode and manually adjust the shutter speed as well as the shooting aperture on the lens barrel?