So for every 4 values in the histogram you have one with green (not sure which but it's one of the two), the next one has both blue and the other green, the next one has red only, and finally there's one with no values at all. This would make sense if they were all gathered in the same bins but instead they're spread differently, like they're being digitised differently maybe?
It might be worth noting that the G7 X Mark I (which preceded the related G9 X) only had 12-bit values, so maybe the bump to 14-bit was done with cutting a corner somewhere.
Indeed, and look at what happens when you superimpose all 4: http://i.imgur.com/EovPwIF.png
So for every 4 values in the histogram you have one with green (not sure which but it's one of the two), the next one has both blue and the other green, the next one has red only, and finally there's one with no values at all. This would make sense if they were all gathered in the same bins but instead they're spread differently, like they're being digitised differently maybe?
It might be worth noting that the G7 X Mark I (which preceded the related G9 X) only had 12-bit values, so maybe the bump to 14-bit was done with cutting a corner somewhere.