I have a Photography Blueprint pretty much done, just need to polish and tweak, but the foundation is there.
Most of the frequently used PostProcess Settings can be changed with keyboard input, for example: Exposure is bound to increase/decrease with Numpad Plus and Minus, or Contrast with Z and X.
Other currently bound settings are Grain intensity, Vignette intensity, DOF toggle, Focus distance, Fringe toggle, FOV, Saturation level.
As for taking the actual picture, that’s bound to Left Mouse Button, and Double Resolution Shot to Shift+LMB.
Enough talk, have some test shots: Imgur album
And some comparison shots of changing various settings: Imgur Album #2