SEL85F14GM (FE 1.4 / 85 GM) (FE 85mm F1.4 GM)
4-3
Note 2:
Attach the chart to the 1000 mm collimator as shown in the figure below.
Align the marks
1000 mm collimator
Chart
4-2. OPTICAL AXIS CHECK/ADJUSTMENT
Service Tools and Equipments
• 1000 mm Collimator
• Flange Back Tester
• A-mount Attachment
• E-mount Attachment
• Flange Back Gauge (43.50 mm)
• Extension Jig (47.00 mm)
• Camera (General E-mount Interchangeable Lens Digital Camera)
• Adhesive bond (B-10)
4-2-1. Setting of the Flange Back (f’F) Measuring Instrument.
Preparations
1. Set the equipment as shown in the figure below.
Flange back gauge (43.50 mm)
A-mount attachment
Objective lens (10x)
Dial Gauge (Min. scale: 0.01 mm)
Scale ring
Eyepiece lens (7x)
Eyepiece ring
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 (43.50 mm) securely to the A-mount attachment and hold them together.
4. While applying light to the flange back gauge, turn the focusing knob of the flange back tester so that fine scratches are the sharpest.
Note:
Turn the knob in the direction of the arrow of figure below for correct reading.
Focusing knob
Focus on fine lines near the center
Always turn the knob in the arrow
direction for correct reading.
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 the short pointer.