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8-2-2.
Auto Focus Adjustment
TR AF adjusting chart (2m directly in
Subject
na
front of lens reference plane)
Meas
nt Point
prement
wot | Check with a monitor TV.
Measuring Instrument
'Adjustment element | AF adjustment screw
'Adjustment tool ___| Hexagonal wrench (1.25 mm)
[Specified Value
[0 1 mm
IR AF Adjusting chart: Fig. 8-11 (a)
Write the following pattern on the white Kent paper (A3 size).
1)
Reticle to indicate chart center.
2) Minute pattern to discriminate focus condition.
A pattern example is shown below.
iS
Se a
ab i
Fig. 8-11 (a).
Adjusting method:
3) Tum on the auto focus.
7) Tum the focus ring to WIDE end (0.75m).
9) Tum the focus ring to TELE end (0).
Lens bottom section
AF adjustment screw
Focus optimum position
(In case of 2m)
o ope
Stopper bottom end
Fig. 8-11 (b).
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