Use this electronic viewfinder on a Leica D-Lux 5 and am satisfied! Especially when the sun shines outside, such a viewfinder makes the top of mind. All relevant data, such as on the screen, recorded. So you have full control of image! only the resolution could be better! But then that was probably up to date. However nix recognize between on the large display and viewfinder this, I choose the viewfinder. The viewfinder itself is tucked into a small carrying case. And in addition to a plastic holder, so that part remains safely stowed! Good Solution!
Buy recommendation, even if the price of a P & S camera ;-)