Figure 27. Holder PH-349-A.

TM 11-405-10

(6) Turn the room lights off and the safelight

(11) Adjust the f/stop opening of the projection

on.

lens by turning the diaphragm ring until the

Note. For ac operation turn the TIMEFOCUS switch of

desired illumination of the projected image

the interval times to FOCUS. For de operation, if the foot

is obtained.

Note. Each f/stop with a larger number

switch is used, depress the foot switch.

(7) Loosen the carriage locking knob (fig. 15).

reduces by one-half the amount of light

(8) Raise or lower the enlarger body until the

that reaches the easel, and the exposure

size of the projected image is

time must be doubled.

approximately the size of the desired print.

(12) Turn the TIME-FOCUS switch of the

Note. The greater the distance between

interval timer to TIME (ac operation) or

the easel and the negative, the greater the

release the foot switch (dc operation).

size of the projected image.

(13) Turn off the safelight and turn on the room

(9) Tighten the carriage locking knob.

lights.

b. EN-16(1).

(10) Lengthen or shorten the bellows by turning

the focusing knob until the projected

(1) Perform the procedures outlined in a (1)

image is in sharp focus.

through (6) above.

Note. It may be necessary to adjust alternately the

(2) Loosen the operating handwheel locking

enlarger body position and the bellows several times

before the required projected image size and focus are

(3) Raise or lower the enlarger body, by

obtained.

turning the operating handwheel (fig.

AGO S594A