We all know the shallowness of the DOF (Depth Of Field) on a big aperture setting lens, but has often been left clueless as to where exactly are those range of sharpness (in meters/feet) when we focus on our subjects.
So, to help you and me, follow the attached guide for your shoot with the 50mm lens. You will find yourself consciously shooting sharper pictures in no time! Want more focal length measurement? Check it out [here].
Have fun...