I picked up my new-to-me A7Rii on Saturday and in playing around doing some comparisons to my E-M1ii I noticed that the zebras on the Sony (set at 100+) start showing a long time before the highlight indicators do on the Olympus. I didn't really believe that the Sony sensor was clipping before the Oly (!), and indeed it does seem the case that the zebras are very conservative since highlights were easily recoverable even in areas heavily populated with said stripey animals. I did some simple testing today to get a feel for how conservative it is and the answer is a little under 2 stops. That is, if you increase the exposure comp from the point where they just show, you can add another 2 stops and still be able to recover the highlights in LR (I'm talking raw of course). In fact, the histogram on both the camera and in LR confirms this to be the case (i.e. it's 2-stops after zebras appear that the histogram starts slamming up to the right hand side - and I was pointing at white light so the RGB values were all pretty even). It's odd that the zebras behave like this. I noticed another odd thing too. If I set the zebras to values lower than 100 and then crank the exp comp up a bit at a time, then zebras appear only to disappear again when the exp comp goes on about another 4 stops. Not a situation that will affect me, but very odd nonetheless. I'm a bit disappointed by this since my standard exposure method since taking up mirrorless is to use the exp comp dial a lot, guided by highlight clipping indicators. The Oly isn't perfect (esp in M mode), but it does seem a bit easier to use than the Sony. I guess I can adapt, but it's a bit of a pain having to go back in exp comp until the zebras disappear and then carefully add back a stop and a half or so.