4. Flange Back Check
SubjectSiemens star (PTB-450)
(2.0 m from the front of the lens)
(Luminance : approx. 200 lux)
Measurement PointCheck operation on TV monitor
Measuring Instrument
Specified Valueocused aFt the TELE end and WIDE end.
Switch setting:
1) NIGHT SHOT ..................................................................OFF
2) DIGITAL ZOOM (Menu display) ...................................OFF
3) STEADY SHOT (Menu display) .....................................OFF
Note: When the auto focus is ON, the lens can be checked if it is
focused or not by observing the data on the page 1 of the
adjustment remote commander.
1) Select page: 0, address: 03, and set data: 0F.
2) Page 1 shows the state of the focus.
1 : 00 : XX
Odd: Focused
Even: Unfocused
Checking method:
1) Place the Siemens star 2.0 m from the front of the lens.
2) To open the IRIS, decrease the luminous intensity to the
Siemens star up to a point before noise appear on the image.
3) Select page: 6, address: 40, and set data: 02.
4) Select page: 6, address: 41, and set data: 01.
5) Shoot the Siemens star with the zoom TELE end.
6) Turn on the auto focus.
7) Check that the lens is focused (Note).
8) Select page: 6, address: 21, and set data: 10.
9) Shoot the Siemens star with the zoom WIDE end.
10) Observe the TV monitor and check that the lens is focused.
Processing after Completing Adjustments
1) Select page: 6, address: 21, and set data: 00.
2) Select page: 6, address: 40, and set data: 00.
3) Select page: 6, address: 41, and set data: 00.
4) Select page: 0, address: 03, and set data: 00.
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ACEC
