SEL85F14GM (FE 1.4 / 85 GM) (FE 85mm F1.4 GM)
4-9
4-4. RESOLVING POWER ADJUSTMENT
4-4-1. Resolving Power (Partial Blur) Adjustment
1. Increase or decrease the thickness and number of back washer (9139) to adjust the partial blur.
Back Washer (9139)
Mount Assy (9139)
Back Washer (9139)
Back Washer (9139)
Part No.
Thickness t (mm)
4-571-212-01
0.03 ± 0.003
4-571-212-11
0.05 ± 0.005
4-571-212-21
0.07 ± 0.007
4-571-212-31
0.1 ± 0.01
4-571-212-41
0.2 ± 0.01
4-5. FLANGE BACK CHECK
Equipment and Tools
• Flange back adjustment jig
• Siemens star chart
• Camera (General AVCHD recordable E-mount Interchangeable Lens Digital Camera)
• 40 inch LCD monitor (Full HD)
4-5-1. Preparations
1. Set the Siemens star chart on the flange back adjustment jig.
Note:
Set the Siemens star chart with the center to be 200 to 400 lux or 35 to 65 cd/m2.
For the Siemens star chart, use a light source free from flickering.
2. Set the distance from the lens of flange back adjustment jig to the checking lens to be within 10 mm.
3. Manually focus to make the center of the Siemens star chart match with the center of the LCD.
4. Set the camera on the AVCHD movie mode.
5. Reset the checking lens. (Set the focus to be
∞
)
Note:
Do not touch the focus ring.
Flange back adjustment jig
Within 10 mm
Checking Lens
Camera
4-5-2. Capturing Image for Checking Flange Back
1. Capture a moving image in the setting of “4-5-1. Preparations”.
4-5-3. Check
1. Play back the movie captured on a LCD monitor.
2. Check that there is no notable image blur, center shifting, image shaking or image jumping.
Note:
Replace the Optical Block For Service when there is notable image blur, center shifting, image shaking or image jumping.
