EXERCISE
10. Why should you open the largest aperture (f/4.5) when getting ready to
frame and focus an image?
ANS: _____________________________________________________
_____________________________________________________
11. In order to obtain the desired image size on the easel during
focusing, you must do the following:
ANS: _____________________________________________________
_____________________________________________________
224 Horizontal Projection
If the degree of enlargement desired is greater than can be obtained
using vertical projection, the horizontal projection attachment (figure
213) may be used. Install the horizontal projection attachment as follows:
a. Remove the projection lens set from the printer.
b. Loosen the knurled screws on the projection lens set.
c. Position the two slots of the horizontal projection attachment under
the heads of the knurled screws.
d. Tighten the knurled screws.
e. Replace the projection lens set back under the carriage assembly.
f. Remove the dust cover from the mirror.
NOTE:
Insert the negative to be enlarged in the negative carrier with the
emulsion side up. This will compensate for the mirror reversal and
the projected image will be corrected left to right.
g. Place the printer ONOFF switch to ON.
h. Focus the image on the wall, raising or lowering the carriage
assembly to bring the image into the desired area.
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