As I may have mentioned in a couple other threads, I'm looking for a camera to use pretty much exclusively with legacy manual focus lenses as my primary camera is still a 5DII (not ready to go full mirrorless just yet) My requirements for this camera are an EVF that shows live exposure preview and focus peaking. My experience with the X100S's implementation of peaking is that it worked pretty well, but I haven't had the opportunity to try its implementation on other bodies. I did however try an Olympus E-M1 at my local shop and was surprised that while the EVF is huge and bright and smooth when panning, once you enable focus peaking it becomes laggy and no better than the EVF on the X-E1 (from what I recall during my short time with it). My question for those that use focus peaking on the Fuji cameras - does the EVF experience more lag when using focus peaking then when not using it? From what I recall with the X100S it didn't add extra lag, but I understand the implementation may be different on cameras like the X-E1 and X-Pro 1.