SEL1855 (E 18-55mm F3.5-5.6 OSS)
4-7E
4-6. FLANGE BACK CHECK
Equipments and Tools
• Flange back adjustment jig (J-6082-563-A)
• Siemens star chart (J-6080-875-A)
• Camera (NEX-5)
• 40 inch LCD monitor (Full HD)
4-6-1. 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/m
2
.
For the siemens star chart, use a light source free from flickering.
2. On TELE end, 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 following mode.
Movie: AVCHD
5. Reset the checking lens. (Set the focus to be
∞
)
* Do not touch the focus ring.
4-6-2. Take a movie for Flange Back Check
1. Take a movie by operating the zoom as shown below.
Zoom: 55mm
→
35mm
→
28mm
→
24mm
→
18mm
→
24mm
→
28mm
→
35mm
* Stop at each position shown above.
4-6-3. Flange Back Check
1. Play back the movie taken in section 4-6-2 on a LCD monitor.
* Check that there is no notable image blur, center shifting, image shaking or image jumping.
Flange back adjustment jig
Within 10 mm
Checking
lens
Camera
Fig.4-6-1
