Rotate the revolving back as follows:
(1) Rotate the back lock crank to the right to release the locking
mechanism.
(2) Grasp the pressure back near the outer edges and rotate the
entire assembly to the desired position.
(3) Rotate the back lock crank to the left to lock the revolving back
securely in position.
EXERCISE
45. You have just fine focused the image on the ground glass, but there is
too much left over space above the image; in order to correct this you must
perform the following steps:
ANS: _____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
46. The image is centered and in approximate focus, but there is a lot of
wasted space all around it. How can you correct this without changing the
camera selected focal length and not move the tripod from where it stands?
ANS: _____________________________________________________
_____________________________________________________
47. To place the plane of sharp focus of the lens in the most advantageous
relationship to the subject, what camera movement should you use to correct
for this?
ANS: _____________________________________________________
_____________________________________________________
90