Canon 40D - EOS 40D DSLR, Руководство по обслуживанию

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Adjustments
12
2.3 Finder Focus Adjustment
<Purpose>
To fit the position of CMOS sensor plane and the viewfinder focus point.
<Specifications>
The center of the infinity mark must be positioned within the 1.5 index line widths of the
index line as shown below.
<Tools>
・Magnifier AD-S.
・Angle finder C, Finder accessories.
・Lens of 100 mm focal length or less is desirable.
・General purpose 500mm collimator
<Preparation>
1） Without the lens attached to the camera, turn the diopter adjustment dial of the camera to
adjust the AF frame to be at the center of the viewfinder.
2） Attach the magnifier to the camera eyepiece and adjust the diopter of the magnifier.
(Perform without the lens attached.)
<Adjustment Procedure>
1） Look through an object that is located at least 250m away (such as lightening rod or
chimney) and turn the manual ring to find the position that gives the clearest view of the
object.
2） Check if the center of the infinity mark is positioned within the 1.5 index line equivalent
widths. If not, replace the focus washer and try again.
* When a collimator is used, select the focus washer that gives the clearest view of the collimator scale.
Be sure to perform the Finder Focus Adjustment after the FFD Adjustment
is completed.
CAUTION
Fig. 015 Focusing Scale Alignment
Fig. 016 Focusing Washer Replacement
CB3-3819
A
A± SIZE
0.03mm
0.05mm
0.08mm
0.10mm
0.12mm
0.15mm
0.18mm
0.20mm
0.25mm
0.30mm
0.35mm
(003)
(005)
(008)
(010)
(012)
(015)
(018)
(020)
(025)
(030)
(035)
CB3-3819-000(XXX) detail