For this exercise, I placed the subject in front of a bookshelf at a distance of about 10 to 12 feet. A 60mm prime, equivalent to 90mm in full frame, was used at the widest possible aperture of f/2.4. The camera was set at aperture priority at base ISO of 200. A flash was bounced off the ceiling to create fill light. Focus was on the subject eyes, which were some 4 feet in front of the camera.
Compared with the wide-angle shot in exercise 2.3, in this one there is no significant distortion and what is visible of the shoulders seem to be in the correct proportion to her head. The wide aperture creates a nice a clear separation between the head and the background, which is distinctly blurred. This is also in contrast with the picture of exercise 2.3, which in spite of also having been taken at the widest possible aperture, shows foreground and background details which are not clearly out of focus.