Figure 1-38. Pivot Lock Knob.

Copy Photography I
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(3) When the camera cannot be centered horizontally with respect to the

subject because of an obstruction, centering of the subject on the ground glass

may be obtained by sliding the front or rear frame, or both, with respect to

its carriage. Slide the front or rear frame as follows:

(a) Loosen the respective slide

and swing lock knob 1 , (fig 1-37).

(b) Gently slide the front or

rear frame to the right or left, as

desired, on its respective carriage.

tighten the respective slide and

swing lock knob 1 .

Figure 1-37.

Sliding Frame.

NOTE: The following camera controls are used for 3 dimensional subjects.

They normally are not required for copy photography.

However, these

controls are available on the camera and in certain circumstances may be

required.

(4) To place the plane of sharp focus of the lens in the most advantageous

relationship to the subject, use the swings and tilts of the front frame. Tilt

the camera front frame as follows:

(a) Loosen the front pivot lock

knob 2 , (fig 1-38).

(b) Tilt the front frame forward

or backward to the angle desired.

is made, tighten the front pivot

lock knob 2 .

Figure 1-38.

Pivot Lock Knob.