Sony SAL55200-2 Service Manual page 24

2. Projective Resolving Power (Curvature of field) Adjustment
Confirm whether the peripheral projective focal plane is located forward or backward with respect to the central projective focal
plane, and adjust if necessary.
1) Set the focal length of lens to 200 mm and adjust the focus so that the center "y' = 0" reaches the maximum resolution.
2) Check the resolution of each peripheral "y' = 9". (Check whether it locates in front or at back of the central projective focal plane.)
(1) In case that the peripheral plane is located at back of the central plane, decrease the G10-11 adjustment washer (fine-adjust-
ment).
(2) In case that the peripheral plane is located in front of the central plane, increase the G10-11 adjustment washer (fine-adjustment).
G10-11 ADJUSTMENT WASHER
Part No.
3-279-372-01
3-279-372-11
3-279-372-21
3-279-372-31
3-279-372-41
Rear Light Shield Barrel
3) If the projective resolving power does not meet the specification, adjust again.
Note:
When perform this adjustment, perform "4-6. FOCUS-SHIFT CHECK/ADJUSTMENT (APERTURE (AMOUNT OF
SPHERICAL ABERRATION))".
SAL55200-2 (DT 4-5.6/55-200 SAM) (DT 55-200mm F4-5.6 SAM)
Description
G10-11 ADJUSTMENT WASHER
G10-11 ADJUSTMENT WASHER
G10-11 ADJUSTMENT WASHER
G10-11 ADJUSTMENT WASHER
G10-11 ADJUSTMENT WASHER
Table 4-4-3
A
G10-11 Adjustment Washer
A
Fig.4-4-2
t (mm)
0.05
0.03
0.02
0.10
0.15
G11-13 Lens Barrel Assy
4-10
4-1-2. Adjustment Flow Chart