I'm not sure if this is the same with the E-M5 and E-M10, but I find the fact that you can't set the rear LCD screen into an 'off' state very frustrating. By 'off' state, I mean having it off until you want to look at the Super Control Panel (SCP) or go to Live View or view a shot. In its normal configuration, the LCD is on until you put your eye to the EVF and then it turns off. You can toggle the 'info' button so that it shows a blank screen, but it is still 'on'. This wastes power and on the E-3 and E-5, the LCD was totally off until you pressed the OK button and invoked the SCP. You can turn the LCD off by disabling the eye sensor and you then have to press the live view button to toggle between the LCD and EVF, but this becomes very cumbersome indeed. For the life of me, I don't understand why you couldn't have a third option that emulated that of the E-5. This would invariably save power, possibly a substantial amount (who really knows), as I can't really see a need to have the LCD always 'on' or on standby. Just an update. I sent an email to Olympus technical support in Japan asking about a potential firmware update to allow you to turn off the LCD. I've sent them emails before and they do respond, but they don't always understand what it is that you are after. Sometimes I wish I had a Japanese contact who could relay such ideas in Japanese and break the language barrier.