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7-7.
OHB File
OHB File is used to store the adjustment values specific to the CMOS block.
OHB File data is stored in the camera.
7-7-1.
OHB File Operation
Adjusting and Storing
Using FILE/MAINTENANCE Menu of This Unit
1.
Calls the reference file stored in the camera.
[FILE] → [REFERENCE] → [STANDARD]
2.
Perform the automatic black shading adjustment.
[MAINTENANCE] → [BLACK SHADING] → [AUTO BLACK SHADING]
Repeat this operation 3 times or more.
When adjustment is not completed correctly, adjust the black shading automatically again.
Or adjust the black shading V SAW, V PARA, H SAW, and H PARA on R/G/B respectively.
[MAINTENANCE] → [BLACK SHADING] → [V SAW R/G/B], [V PARA R/G/B], [H SAW R/G/B] , [H PARA
R/G/B]
3.
Perform the automatic black balance adjustment.
[MAINTENANCE] → [AUTO SETUP] → [AUTO BLACK]
4.
Perform the automatic white shading adjustment.
Shoot the white pattern so that the video level is around 80% (560 mV).
[MAINTENANCE] → [WHITE SHADING] → [AUTO WHITE SHADING]
Repeat this operation 3 times or more.
When adjustment is not completed correctly, adjust the white shading automatically again.
Or adjust the white shading V SAW, V PARA, H SAW, and H PARA on R/G/B respectively.
[MAINTENANCE] → [WHITE SHADING] → [V SAW R/G/B], [V PARA R/G/B], [H SAW R/G/B] , [H PARA
R/G/B]
5.
Adjust the ND offset for all of ND filter 1 to ND filter 5.
Tip
To change ND filters, press the ND filter switching button while pressing the FILTER LOCAL button.
(1) Select 5 with the ND filter knob, and shoot the white pattern so that the video level is 50% (350 mV).
(2) Select 1 with the ND filter knob, and adjust the lens iris so that the video level is 80 to 50% (560 to 350 mV),
and then perform the automatic white balance adjustment.
(3) Select 2 with the ND filter knob, and adjust in the same manner as step 2).
(4) Select 3 with the ND filter knob, and adjust in the same manner as step 2).
(5) Select 4 with the ND filter knob, and adjust in the same manner as step 2).
(6) Select 5 with the ND filter knob, and adjust in the same manner as step 2).
6.
Perform the OHB matrix adjustment.
[MAINTENANCE] → [OHB MATRIX] → [OHB MATRIX: ON]
7.
Store the OHB File.
[FILE] → [OHB FILE] → [STORE FILE]
With MSU (Master Setup Unit)
1.
Press the STANDARD button in the camera/panel control area on the operation panel (ON: lit).
2.
Press the FILE button in the menu operation area on the operation panel (ON: lit).
HDC4300
7-11
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