Panasonic 3-MOS P2 Hand-held Camcorder Advanced Operating Instructions - Page 32
Adjusting the white balance and black balance, Adjusting the white balance
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Adjusting the white balance and black balance To record high-quality video with the AG-HPX255P/ EN, the black and white balances must be adjusted according to conditions. If white balance and black balance adjustments are made while the video image is distorted due to GENLOCK, the adjustments may not be correct. Wait for the video image to return to normal before performing white balance and black balance adjustments again. Adjusting the white balance Whenever light conditions change, the white balance must be readjusted. To adjust the white balance, follow the steps on the right. ND FILTER dial This control adjusts the amount of light entering the MOS sensor. 1 Set the GAIN and WHITE BAL switches. • For the WHITE BAL switch, select A or B as a position to save the adjustment value. 2 Adjust the ND FILTER dial according to the light conditions. For examples of ND FILTER dial, see "Light intensity adjustments" (Page 31). 3 Place a white pattern at a point where the light conditions match those for the light source of the subject. Then zoom-in on the white pattern so that white color appears in the screen. • A white object (cloth or wall) may be used instead of a white pattern. The illustration below shows the required size for the white space. • Do not point the camera-recorder at a highbrightness area. • The white object must appear at the center of the screen. 1/3 or more of the screen in width AWB button Use for automatic control of white balance. WHITE BAL switch Set to A or B. GAIN switch Normally set to 0 dB. If this is too dark, adjust gain as necessary. 1/3 or more of the screen in height 4 Adjust the lens iris. • Use the Y GET function (Page 122) and adjust the iris to a approximately 70 % of incoming light. 5 Press the AWB button. • The switch returns to the central position with the white balance automatically adjusted. 6 During an adjustment, the viewfinder or LCD monitor displays the following message: AWB Ach ACTIVE 32