10. Why should you open the largest aperture (f/4.5) when getting ready to
frame and focus an image?
11. In order to obtain the desired
focusing, you must do the following:
2-24 Horizontal Projection
If the degree of enlargement desired is greater than can be obtained
using vertical projection, the horizontal projection attachment (figure
2-13) 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.
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 ON-OFF switch to ON.
h. Focus the image on the wall, raising or
assembly to bring the image into the desired area.