I want to take a guess.....
Currently, no matter what application you use to take a photo, it has to be using the Default Camera app (which they broke after gdr1 update), meaning even when you open Nokia Camera, Proshot, Instagram, or anything, you will be actually using the Default camera but with a different button layout.
Later, Microsoft has solved this issue by giving apps the ability to use their own code to create the viewfinder, and programing, so I assume this will be fixed on 8.1, when every Dev decides to fix it, and we know Nokia will be the first to jump on this boat.
Also, I think this is the case with Internet browser, no matter what browser you use, it will be using the IE10 code, with a different button layout, so that's useless too, although I don't know if they are working on a fix.
Hope I was helpful.