VAA46003-R.3659.A
- A19 ・ E7900 -
#B
601
#
627
#
615
Washer (#
608
)
Zoom position
FFD standard
Measured value in relation to reference value (-2.357mm)
Wide-side
+0.044 mm
-0.183 mm
-2.401
~
-2.174
Tele-side
+0.044 mm
-0.183 mm
-2.401
~
-2.174
FFD adjustment
・
Make the lens focusing adjustment for alignments from WIDE through TELE by using washers (#
608
A-D and #
627
A-D)
so that the FFD measurement value within standard of the below.
How to calculate "washer amount" for the FFD adjustment
Note: If the washer (#
627
) is thickened, the FFD value of the Tele-side shifts to minus direction.
Note: If the washer (#
608
) is thinned, the FFD value (of the both Wide and Tele side) shifts to plus direction.
①
Measure
Δ
FFDW (Difference from the reference value "-
2
.
357
" at Wide) and
Δ
FFDT (Difference from the refer-
ence value "-
2
.
357
" at Tele) by using the lens unit checking tool.
②
By assigning the values of
Δ
FFDT and
Δ
FFDW to the next formula, calculate "washer amount A" for #
627
(the
1
st
lens group positioning adjustment).
・
A
=
(
Δ
FFDT
-Δ
FFDW)/
1
.
84
+ ("washer amount" for #
627
attached)
③
By assigning the value of "washer amount A" to the next formula, calculate "washer amount B" for #
608
(the CCD
positioning adjustment).
・
B
=
Δ
FFDW + (
0
.
26
x
A) + ("washer amount" for #
608
attached)
④
Select the washers (#
608
and #
627
) of which the thickness is approximate to the calculated A and B.
Содержание coolpix7900
Страница 77: ...VAA46003 R 3659 A E1 E7900 ...
Страница 78: ...VAA46003 R 3659 A E2 E7900 ...
Страница 79: ...VAA46003 R 3659 A E3 E7900 ...
Страница 80: ...VAA46003 R 3659 A E4 E7900 ...
Страница 81: ...VAA46003 R 3659 A E5 E7900 ...
Страница 82: ...VAA46003 R 3659 A E6 E7900 ...
Страница 83: ...VAA46003 R 3659 A E7 E7900 ...
Страница 111: ...VAA46003 R 3659 A T5 E7900 ジーメンススターチャート ...