7-6.
Lens File
The Lens File stores the differential data from the Reference File.
Lens File stores the data to compensate the differences of the white shading, flare balance, and white balance, which
occur when the lens extender is set to ON. It also stores the minimum f-stop value and name of the lens. These adjustment
data are stored in the camera.
Lens File data of up to 16 files can be stored for a lens that is not compatible with serial communication and Lens File
data of up to 25 files can be stored for a lens compatible with serial communication.
The adjustment data can be called by selecting a Lens File.
Note
Before creating the Lens File, perform the necessary adjustments by using the lens usually used and register the Reference
File.
7-6-1.
Lens File
Adjusting the Lens File Data
Using a lens that is not compatible with serial communication
1.
Mount the lens and select the file with the same name as the mounted lens from the setup menu. If no file with the
same name as the lens exists, select NO OFFSET.
[FILE] → [LENS FILE] → [No.] (Select a lens number)
2.
Set the lens name and minimum f-stop value.
3.
Set the lens extender to OFF.
4.
Shoot the white pattern, and fine-adjust it with V modulation R/G/B/Master so that the video level is around 80%
(560 mV) with the lens iris set around F4 and the zoom control in the center of the ring.
[PAINT] → [VIDEO LEVEL] → [V MOD R/G/B/M]
5.
Adjust the white balance and flare balance with the grayscale chart.
6.
Zoom the lens and adjust the center marker to a position at which the object does not deviate.
Note
The center marker position is stored in the Lens File immediately after the position is aligned. Note that the center
marker position is not stored when Lens File Store is executed.
7.
Store the lens file.
[FILE] → [LENS FILE] → [STORE FILE]
8.
Set the lens extender to ON and repeat steps 4 to 7.
For lens compatible with serial communication
1.
Check that the lens number is No. 17.
2.
Also check that the name of the lens and minimum f-stop value.
HDC4300
7-9
