It might be noisy, but it definitely delivers a reasonably bright image where an optical viewfinder would be completely dark already. Especially in the high gai

It might be noisy, but it definitely delivers a reasonably bright image where an optical viewfinder would be completely dark already. Especially in the high gain modes, you have like a night vision device - try pointing the E-M1 at the stars with the higher of the live view amplification modes. It is great how many stars you can see this way.