The EVF on the production model we ran through our lab and field tests was one of the best available, with relatively fine grain (approximately 235,000-pixel resolution), excellent color accuracy and contrast, and an eye-activation switch. But it shares a problem common to EVFs: low magnification. And even this relatively sharp EVF can't hold a candle to the clarity and instant response of a typical optical viewfinder. For example, the image gets a bit jumpy as you pan from side to side, and you can't track fleeting expressions as easily. To compensate, we resorted to the two-eyed approach to see both portrait subjects and anything moving in the scene.