Panasonic HDC27H Operating Instructions Manual

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Panasonic HDC27H Operating Instructions Manual Manual pdf 53 page image

53Adjusting the white balance and black balanceAdjusting the white balance1 Set the switches as shown in the figure.FILTER controlWHITE BAL: A or BOUTPUT: CAMGAIN: Normally 0 dBSet to a more suitable gain level if it istoo dark.When the GAIN and WHITE BAL switch settingsare changed, messages advising the user of theset positions appear on the setting changemessage display of the viewfinder screen.(However, this happens only when “3” has beenset as the display mode.)2 Select the FILTER control setting in accordancewith the lighting conditions.O For examples of the FILTER control settings,refer to the description of the FILTER control(page 14) in the “Shooting (recording)/playbackfunction section.”When the FILTER control setting is changed, amessage advising the user of the set positionsappears on the setting change message displayof the viewfinder screen. (However, thishappens only when “3” has been set as thedisplay mode.)A better picture can be achieved by adjusting thewhite balance and black balance in the followingsequence: AWB (white balance adjustment) 5 ABB(black balance adjustment) 5 AWB.There is usually no need to re-adjust the blackbalance even when the power has been turned offand back on.The white balance must always be re-adjusted whenthe lighting conditions have changed.If the display mode is set to “2” or “3,” messagesadvising the user of what progress has been made inthe adjustments and what the adjustment results areappear on the viewfinder screen when the blackbalance or white balance adjustment is commenced.Set the display mode to “1” if these messages are notto be displayed.O For details on the display mode settings, refer to“Display modes and setting change messages”(page 48).O ABB must be performed when the MASTER GAINlevels have been changed on the LOW SETTING,MID SETTING and HIGH SETTING screens of theFILM (CAM) MAIN MENU 1, when the super gainsetting has been changed using the USER button,and when the GAMMA (ON/OFF) has beenswitched on the CAMERA SETTING screen.O With artificial lighting—particularly fluorescent lightsand mercury lamps—the luminance may appear tobe constant but the intensity of the R, G and Bcolors will change in synchronization with the powerline frequency. Especially in regions with a 50 Hzpower line frequency, mutual interference arisesbetween the vertical sync frequency (approx. 60Hz) of this unit and lighting frequency (50 Hz). As aresult, the hue tends to change with the passage oftime or flickering occurs, making it impossible toachieve a proper white balance.It is recommended that the white balance beachieved using the settings shown in the tablebelow.Power line frequency Shutter speed50 Hz 1/10060 Hz OFFPreset white balanceSet the WHITE BAL switch to PRST. The whitebalance for the selected filter is now obtained inaccordance with the position where the FILTERcontrol (outer) has been set.If the preset white balance is to be left unchanged foruse, skip ahead to “Adjusting the black balance” (page56).White balance adjustments using theAWB function