How To Obtain The Minimum Value Of The Vibration Width - Nikon AF-S VR Zoom-Nikkor ED 70-200mm f/2.8G IF Repair Manual

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《Reference》
・The laser spot beam is irradiated about 10mm in diameter at 5 m ahead.
50mm
40mm
・How to obtain the minimum value of the vibration width
①Measure the vibration width while changing the adjustment value that is set every 0.02Step as shown below.
②The peak section of the minimum vibration width can be obtained by the actual measured value.
③Take the center of the peak section as the adjustment value.
Notes:When measuring the vibration width, read it in unit of 0.5mm.
10mm
14.5mm
4.5mm
- L68・AF-S VR 70-200/2.8G -
①To adjust the vibration width at the center of the
laser spot beam, measure the whole vibration width
first.
②Subtract the radius of the laser spot (oblique lined
part) from the top and bottom of the measured
vibration width.
Example)
When the whole vibration width is [About 42.5mm],
the center vibration width becomes be
50 - (5 + 5) = 40mm.
Standard after the gyro gain adjustment
40 x 1/5 = 8mm (Center vibration width)
Whole vibration width becomes be
4.5+ (5+5) = 14.5mm.
Gyro Gain
Vibration width
Adjustment
Actual measured
Value
value
0.90
16.5mm
0.92
16.0mm
0.94
15.5mm
0.96
15.0mm
0.98
14.5mm
1.00
14.5mm
1.02
14.5mm
1.04
15.0mm
1.06
15.5mm
1.08
16.0mm
1.10
16.5mm
INC
JAA78151-R.3584.A
Peak section of the
minimum value of the
vibration width

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