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LENS GENERAL ADJUSTMENT GUIDE
3-2.
Flange Back (f’F) Check/Optical Axis Check
1)
Attach the checking lens to the flange back tester, and set the 1000 mm collimator.
Fig.3-2-1
2)
Set the focus ring of the checking lens to “
∞ (infinity) index or near ∞ (infinity)” and adjust the optical axis, observing the micro-
scope so that the chart can be seen in the center.
Note:
The setting of focus ring differs in model. Refer to the service manual of each model.
3)
Turn the focusing knob of the flange back tester until the chart image comes into focus.
Also check the optical axis aligns with the chart center. (Refer to Fig.3-2-2.)
Note:
Figure shows example. The cause depends on individual lens.
Fig.3-2-2
1000 mm collimator
Checking lens
Optical Alignment
Best alignment
Best alignment
Incorrect aligned
e.g. As the focusing knob is turned, the chart may appear blurry as illustrated.
The cause depends on individual lens.
e.g. As the focusing knob is turned, the chart may appear blurry as illustrated.
The cause depends on individual lens.
The changed portions from
Ver. 1.2 are shown in blue.
Ver. 1.2 are shown in blue.
Ver. 1.3 2014.04
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