-
seul rhe udjusting screw
with
meUllc.
Don't
tet
the shellac drip
into
the cantilever
asstmbly.
(On
folding
RF/VF's,
pard-Uu
-
-
horizontal adjustment can also be made
through the eccentric S\.7ew hoJding
the
IMgnet.)
d. Position
the
rear window plate
on
the
RF/VF
and secure
it
with the two retaining
screws.
-
LENS
COLLIMATION
(Triplet to
....
Only)
I. Remove the ftont cover
of
the camera and
-
extend the bellows to
detent
lock-in.
,
-
..
Place a mask over
the
phofocelllens
to
pre~
vent the entry
of
6ght.
3.
Set
the
apenure
wheel to
the
"75"
position.
(Camerds with a
fiim
selector should be set
-
at
the "75'"
or
"color"
position.)
-
4.
Set
the
scene selector
(if
present) to the
"BRIGHT
SUN
OR
DULL DAY-ALSO
FLASH" position.
5, Open the rear door and mount the camera
on
the coUimator. Clamp the focal plane
plate Into position
on
the camera.
(See
F,g~
-
ure 5·52.)
-
-
-
-
-
FIG,
5.52
CAMERA
MOUNTED
ON
COLLIMATOR
-
6,
Aim the camera
at
the
infmity
tube
(com~
malor)
and
mOve
the focus bar
to
INFINITY,
-
7,
Cock
and
trip
the
shutter
and
observe
the
target through the lens
adapter
(oupe.
(The
shutter
should stay
open
because
of
the
-
mask over the
photocell.)
-
8,
Position tool # j j 007 in the
Jens
mount
(Figure 5-53). Squeeze
the
handle Wltil
the
1001
is firmly seated against
the
mount
and
71
FIG,
5,53
REMOVING
THE
LENS
MOUNT
tucn it
to
break
the
shellac seal. Remove rhe
entire lens mount.
9,
Set the lens mount in lens nest 1 1394 (
Fig~
ure
S~54).
Put a few
drops
of
methanol
on
the seal
between
the
fiont
and
rear lens
FIG. 5.54 FREEING
THE
FRONT
ELEMENT
elements
and
Jet It soak in for a
few
mo-
ments. Then. use tool number J1007
to
free
the front element from the rear eJement.
InstaU
the
lens
mount
(with
the
loosened
front element) back into
the
camera.
10, While looking through
the
lens adapter
loupe, slowly
adjust
the
lens until the
40
tines/mm is sharpest.
11. Swivel the camera and fixture around
to
th~
four foot resolution target. Move
the
focus
bar toward CLOSE-UP.
Stop
when the lines:
of
the larger cross-hair target merge.
12. While looking through the tens adapter
loupe, slowly adjust the lens
mount
until the
40
lines/mm is clear.
Return
to
the
infinity
tube
and move
the
focus
bar
back
to
INFINIIT.
The
minimum reading must
be
40
linesimm even
after
the
4--foot adjust-
ment.
If
a compromise is necessary
in
colli·
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