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JAA78351-R.3597.A
- L20・AF28-200/3.5-5.6G -
Distance adjustment between G10 lens and G11 lens
・
Detach the 4th lens group (B47).
・
Measure the thickness (i.e. the above "A") of the 4th lens group by the digital
micrometer.
・
Turn the zoom ring to the full up position of the wide zoom, and set the lens on
the measurement stand.
・
Reset the measurement to "0" at top face of G10 lens.
・
Reassemble the 4th lens group and measure between the top faces of G10 and
G12 (i.e. the above "B").
・
Calculate the following:
B
-
A
=
C
5.779
-
C
=
Size of washer (#136)
・
Put the washer (#136) into the bottom of the 4th lens group.
G10 lens
G12 lens
#48×3
#199×3
B47
#136
B
A
G11 lens
4th lens group unit
G12 lens
G11 lens