Left eye - right eye. Simple solution: shoot verticals and make it a trademark.
But something else, attendant to verticals: with film Nikons I always held the various cameras the same way around; with both the D200 and D700 I find it all becomes hit'n'miss, time for a piss.
I can't really determine what the problem is, but hand-held, it seems to get swapped from one way to the other, both feeling as alien, which is rather surprising considering that most of my early life - well into middleage, in fact - was vertical fashion! Also, when on a tripod, verticals were always shot with the top of the camera facing to my left. They still are with digital. Explain.
I watched a BBC tv show last night that took one into the understandings of reality. Various physicists went right over my head (pretty quickly, really) and demonstrated how a particle(?) can be in two places at once - they aimed one through one of two parallel slits in a mask: in one instance it recorded as a single hit on the monitor; they then showed it going through both slits at the same time, recording two hits on the monitor, one for each slit, but when they put 'detectors' at either side of the mask (to the front of it), the particle behave itself and went through one slit only. Or the other way around - it matters not. With that in mind, why worry about camera ergonomics? We're all effed whatever we do.
But, it did reinforce my already strong belief in a very real afterlife.
Rob C