Sony SAL35F14G Service Manual page 51

1.4/35g; 35mm f1.4g

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4-3.

OPTICAL AXIS CHECK/ADJUSTMENT

Setting of the Flange Back (f'F) Tester

Equipment

• 1000 mm Collimator

• Flange Back Tester

• A-mount Attachment

• Flange Back Gauge (43.50mm)

• Adhesive bond (B-10)

1. Preparations

1) Set the equipments as shown in the Fig. 4-3-1.

Flange back gauge (43.50mm)

A-mount attachment

2) Looking through the eyepiece lens, turn the eyepiece ring of the flange back tester so that cross line or scale in the view is the

sharpest.

3) Attach the flange back gauge (43.50mm) securely to the A-mount attachment and hold them together.

4) Turn the focusing knob of the flange back tester so that fine scratches on the flange back gauge (43.50mm) is the sharpest.

Note:

Turn the knob in the direction of the arrow of Fig. 4-3-2 for correct reading.

Focusing knob

5) Turn the scale ring of the dial gauge until the long pointer indicates "0".

Note:

This position is the flange back (f'F) = 43.50 mm.

Memorize the position of short-pointer.

SAL35F14G (1.4/35G) (35mm F1.4G)

Dial Gauge (Min. scale: 0.01 mm)

Objective lens (10x)

Fig. 4-3-1

Always turn the knob in the arrow

direction for correct reading.

Fig. 4-3-2

4-12

Eyepiece ring

Eyepiece lens (7x)

Scale ring