The EVF lag is the primary reason I've stuck with DSLR over micro-4/3 until now. Every one I've tried, no matter how fast it's purported to be, has just enough

The EVF lag is the primary reason I've stuck with DSLR over micro-4/3 until now. Every one I've tried, no matter how fast it's purported to be, has just enough lag to make me feel slightly queasy. Another reason is that the EVF is a screen with all its inherent issues. A screen is its own light source, compared to a DSLR finder which is the sunlight bouncing off the scene via the mirror directly into your eye. Your eye via a mirror can see a much larger dynamic range than the EVF screen, and you can make a call on exposure based on that. That said, if the EVF was truly representative of what the sensor was picking up, it may actually be useful, but the EVF is almost certainly showing a quantized version of what the sensor is seeing, and when you get the image in Lightroom or whatever it'll be different to what you saw on the EVF.