Panasonic Memory Card Camera Recorder AG-HPX300P Operating Instructions

							
1
ChapterRecordingandPlayback

Loop recording (LOOP REC)
•  When two P2 cards are inserted in the P2 card slots, 
each card is recorded in succession.
•  When there is no longer any space left on the cards, 
recording starts over from the first card by recording new 
clips over saved old clips.
For the clip recording time, see [Splitting clips recorded 
on P2 cards] (page 30).
BA
BC
Recordingwillbemadeontheareaswithnorecording
consecutively(A,B,thenC). Whenallareasonallcardsare
recorded,newrecording(C)willbemadebyoverwritingthe
areaA. Beforestarting
looprecording
Firstloop
recording
Secondloop
recording Recordingstart
1stcard
ndcard
NorecordingRecorded
1CheckthattheSYSTEMSETUPscreenisset
upasdescribedonpage.
For details on menu operation, refer to [Using the 
menus] (page 120).
2SelectLOOPinthemenuoptionREC
FUNCTIONintheRECORDINGSETUP
screen.
3PresstheRECbutton.
•  Recording starts.
•  Press the REC button to stop recording.
•  To cancel this function, turn the camera off or 
select NORMAL in the REC FUNCTION item.
•  The following indications appear to the left of the 
operation status display.
•  During recording: “L-REC” stays lit.
•  During a pause: “L-PAUSE” stays lit.
•  When remaining memory is low: “P2 LACK L-” 
blinks.
 NOTE
•   Use two P2 cards with at least one minute of 
remaining recording time.
•   The mode check screen shows standard recording 
time depending on recording format as remaining P2 
card time. When loop recording is stopped right after 
deleting old data, the time of recordings on the card 
may be shorter than indicated.
•  
This function is not available during IEEE1394 input.
•  
The pre-recording function is not available.
•   Canceling this function may take some time. The 
succeeding operations are not available until the P2 
CARD ACCESS LED goes from blinking to steady 
lighting.
•  During loop recording, the access LEDs for all P2 
cards used in the recording light orange or blinks. 
Note that removing any of the P2 cards will terminate 
loop recording.
•  Irregularity in the input GENLOCK reference signal 
during loop recording may terminate recording.
PROXY Recording Function 
(Optional)
Installing an optional video encoder card (AJ-YAX800G) in 
P2 card slot 2 makes it possible to record MPEG4 format 
video, time code data and other real-time data to P2 cards 
or SD memory cards simultaneous with camera recording 
of video and audio.
 NOTE
Insert the video encoder card when the camera is turned off.
For details, refer to the supplied User’s Guide of the video 
encoder card.
Hot Swap Recording
With a P2 card in each card slot it is possible to make 
one continuous recording that spans two cards. And by 
removing any card other than that being recorded, you can 
make continuous recording on 2 or more cards (hot swap 
recording).
Note that recognition of a P2 card may be delayed 
depending on when it is inserted in an empty card slot 
(for example, immediately after pre-recording or when a 
recording continues from one card to the next). P2 cards 
should be inserted when there is still 1 minute or more time 
left on the card that is being recorded.
 NOTE
This function is not compatible with hot-swap playback.
REC REVIEW Function
•   Pressing the RET button on the lens after a recording will 
automatically locate and play back the last two seconds 
of the most recent clip. Holding down the RET button on 
the lens will allow you to play back up to 10 seconds. 
Use this function to check that recording is performed 
normally. The camera returns to recording standby mode 
after playback. If the clip is short, holding down the RET 
button after a return to the beginning of the clip will not 
result in playback of the clip before the current clip.
•  You can use menu options USER MAIN, USER1 and 
USER2 to assign the REC REVIEW function to a user 
button. Select these options from the SW MODE screen.
 NOTE
Note that a backup recording performed on a backup device 
connected to the DVCPRO/DV or SDI OUT connector will also 
record video played back using the REC REVIEW function. 
						

							

ChapterRecordingandPlayback
Shot Marker (SHOT MARK) 
Recording Function
This function can be used to distinguish a clip from other 
clips by adding a thumbnail to each clip.
This also makes possible to display or play back the 
marked clips only.
To add shot marks
1IntheSWMODEscreen,assignSHOTMARK
toauserbutton(USERMAIN,USER1or
USER)ortheRETbuttononthelens.
For details on menu operation, refer to [Using the 
menus] (page 120).
2Presstheuserbutton(ortheRETbuttononthe
lens)towhichSHOTMARKhasbeenassigned
duringrecordingorwhenrecordingispaused.
•  SHOT MARK ON is displayed as a shot mark is 
inserted in the currently recorded clip.
•  Pressing this key a second time displays SHOT 
MARK OFF and the shot mark is deleted.
 NOTE
•   A shot mark added during a pause after recording is added to 
the most recently recorded clip.
•  Shot marks can be added also in the thumbnail display.
•  
The shot mark function is not available during loop recording, 
interval recording and one-shot recording. When this function 
is not available, pressing this button displays SHOT MARK 
INVALID. 
•   Shot marks can be set or cancelled in playback pause mode 
but not during playback.
•  Shot marks cannot be set or deleted for video data created 
in a single hot-swap recording session consisting of multiple 
clips unless all the P2 cards that contain the video data 
for the entire session are inserted. In clips that consist of 
multiple clips like the one above, shot marks can be added 
only to the first clip of video data.
Text Memo Recording Function
Use this function to add text memos anywhere in the video 
during clip recording or playback.
This makes it possible to display thumbnails only of clips 
with text memos, or to display thumbnails and time codes 
of text memo positions in order, to play back clips from text 
memo points and select and copy only the sections you 
want.
For details, refer to [Text Memo] (page 107).
To add text memos
1 IntheSWMODEscreen,assign TEXTMEMO
toauserbutton(USERMAIN,USER1or
USER)ortheRETbuttononthelens.
For details on menu operation, refer to [Using the 
menus] (page 120).
2Presstheuserbutton(ortheRETbuttononthe
lens)towhich TEXTMEMOhasbeenassigned
duringrecordingorplayback.
•  “TEXT MEMO” is displayed and a text memo is 
inserted at the point the button is pressed.
 NOTE
•   
You can insert up to 100 text memos per clip.
•   
Text memos cannot be added during loop recording, interval 
recording and one-shot recording. When this function is not 
available, pressing this button displays TEXT MEMO INVALID. 
						

							

ChapterRecordingandPlayback

Normal and Variable Speed Playback
Normal speed playback
Press the PLAY/PAUSE button to view playback in the 
viewfinder and on the LCD monitor in color. Connecting a 
color video monitor to the VIDEO OUT connector or SDI 
OUT connector will enable playback of color video.
The PLAY/PAUSE button can be used to pause playback.
Fast-forward/fast-reverse playback
The FF and REW buttons provide 32× and 4× fast 
playbacks and fast reverse playbacks. In stop mode, this 
function will play back video at 32× speed and in playback 
mode, it will play back video at 4× speed.
Clip cue up
When playback is paused, the FF button locates the 
beginning of the next clip while staying in pause mode. 
When playback is paused, the REW button locates the 
beginning of the current clip while staying in pause mode.
 NOTE
•   It may take some time to load clip data if playback is started 
or a thumbnail screen is opened right after removing or 
inserting a P2 card or turning the power on. The thumbnail 
screen displays UPDATING at such times. 
•  If a P2 card is inserted while another P2 card is being played 
back, the clips on the inserted P2 card will not be played 
back. A P2 card inserted during playback will be recognised 
after playback ends.
•  If you perform variable speed playback on a clip split across 
more than one P2 card, sound may disappear for a moment. 
This is not a malfunction.
•  
To play back a clip in a different SYSTEM MODE, adjust 
the SYSTEM MODE to the clip to reset the camera before 
playback. 
•   Playback of the audio channels CH5 to CH8 recorded on 
another device is not possible. 
						

							

ChapterAdjustmentsandSettingsforRecording

Chapter 4  Adjustments and Settings for Recording
Selecting recording signals
This camera records HD (1080i, 720P) signals using AVC-Intra or DVCPRO HD codecs and use a combination of 
DVCPRO50, DVCPRO or DV codecs for recording SD (480i) signals.
It provides a variety of capture frame rates and recording frame rates (native recording) to suit specific applications.
Select recording and recording signal in the setting menus listed below.
ScreenSetting menuSetting
SYSTEM SETUP screen
SYSTEM MODE
Selects the 1080i, 720P or 480i signal format.
To change this setting, wait until TURN POWER OFF appears before 
turning the power off and then turn it back on again.
REC SIGNALSelects to record using this camera or from the DVCPRO/DV connector.
REC FORMAT
Selects AVC-Intra or DVCPRO HD codec and 60i, 60P, 30PN or 24PN 
native recording in HD mode.
Selects DVCPRO50, DVCPRO or DV codec in SD mode.
CAMERA MODESelects 60i, 30P, 24P or 24PA pulldown recording in 1080i or 480i mode.
ASPECT CONVSelects the video aspect ratio for recording and output in SD mode (480i).
SCENE FILE screen
VFR
Setting this function to ON in 720P mode starts variable frame rate capture 
which records at the frame rate set in the FRAME RATE option.
For details, refer to [Variable Frame Rate (VFR) Recording] (page 36)
FRAME RATEWhen the VFR option is set to ON, select the frame rate for variable fra\
me 
rate recording.
 NOTE
•   Changing the menu options SYSTEM MODE, REC SIGNAL, REC FORMAT and CAMERA MODE may distort video and audio, but 
this is not a malfunction. 
						

							

ChapterAdjustmentsandSettingsforRecording
List of recording formats and functions
The table below lists the recording formats and recording functions that the camera supports.
Camera recording modes (When the menu option REC SIGNAL is set to CAMERA)
Setting
Recording format *1Recording time *2
Recording function
SYSTEM MODEREC FORMATCAMERA MODEVFRFRAME RATE [FRAME]
PRE RECPROXY (optional)INTERVAL, ONE SHOTLOOP REC
1080-59.94i
AVC-I 100/60i(AVC-I 50/60i)
Disabled
DisabledDisabled
1080/60i
AVC-I 100(AVC-I 50)
Approx. 64 min.(Approx. 128 min.)

AVC-I 100/30PN(AVC-I 50/30PN)1080/30PNNative––––
AVC-I 100/24PN(AVC-I 50/24PN)1080/24PNNativeApprox. 80 min.(Approx. 160 min.)––––
DVCPRO HD/60i
60i1080/60i
DVCPRO HDApprox. 64 min.

30P1080/30P Over60i 2:2 Pull Down
24P1080/24P Over60i 2:3 Pull Down––––
24PA1080/24PA Over60i 2:3:3:2 Pull Down––––
720-59.94P
AVC-I 100/60P(AVC-I 50/60P)
Disabled
OFFDisabled720/60P
AVC-I 100(AVC-I 50)
Approx. 64 min.(Approx. 128 min.)

ON12-60––––
AVC-I 100/30PN(AVC-I 50/30PN)
OFFDisabled720/30PN Native
Approx. 128 min.(Approx. 256 min.)
––––
ON
30––––
Other than 30
720/30PN Native VFR(Audio cannot be recorded)––––
AVC-I 100/24PN(AVC-I 50/24PN)
OFFDisabled720/24PN Native
Approx. 160 min.(Approx. 320 min.)
––––
ON
24––––
Other than 24
720/24PN Native VFR(Audio cannot be recorded)––––
DVCPRO HD/60P
OFFDisabled720/60P
DVCPRO HD
Approx. 64 min.

ON
60––––
30720/30P Over60P 2:2 Pull Down––––
24720/24P Over60P 2:3 Pull Down––––
Other than above720/60P VFR––––
DVDPRP HD/30PN
OFFDisabled720/30PN Native
Approx. 128 min.
––––
ON
30––––
Other than 30
720/30PN Native VFR(Audio cannot be recorded)––––
DVDPRP HD/24PN
OFFDisabled720/24PN Native
Approx. 160 min.
––––
ON
24––––
Other than 24
720/24PN Native VFR(Audio cannot be recorded)––––
480-59.94iDVCPRO 50/60iDVCPRO/60iDV/60i
60i
DisabledDisabled
480/60i
DVCPRO50DVCPRO*3
DV*4
Approx. 128 min.Approx. 256 min. *3
Approx. 256 min. *4

30P480/30P Over60i2:2 Pull Down
24P480/24P Over60i2:3 Pull Down––––
24PA480/24PA Over60i2:3:3:2 Pull Down––––
*1 24P and 30P indicate recording at 23.98P and 29.97P, respectively, while 60P and 60i indicate recording at 59.94P and 
59.94i, respectively. Native mode records active frames only.
*2 Recording times are indicated for a single 64 GB P2 card. Two cards double the recording time. 
Since native VFR mode records only active frames, the recording time and actual shooting time differ.
Example:     In 24PN recording, shooting at a frame rate of 60 frames will result in a shooting time of 24/60 (0.4 times). 
In 24PN recording, shooting at a frame rate of 12 frames will result in a shooting time of 24/12 (2 times).
*3 For DVCPRO/60i
*4 For DV/60i 
						

							

ChapterAdjustmentsandSettingsforRecording

1394 input recording mode (when the REC SIGNAL option is set to 1394)
Setting
Recording format *1Recording 
time *2
Recording function
SYSTEM
MODE
REC
FORMAT
CAMERA
MODEVFR
FRAME
RATE
[FRAME]
PRE
REC
PROXY 
(optional)
INTERVAL, 
ONE SHOT
LOOP
REC
1080-59.94iDisabledDisabledDisabledDisabled1080/60iDVCPRO HDApprox. 64 
min.
−−−−
720-59.94PDisabledDisabledDisabledDisabled720/60P−−−−
480-59.94i
DVCPRO50/60i
DisabledDisabledDisabled480/60i
DVCPRO50Approx. 128 
min.−−−−
DVCPRO/50iDVCPROApprox. 256 
min.
−−−−
DV/50iDV−−−−
*1 60P and 60i is recorded at 59.94P and 59.94i, respectively.
*2 Recording times are indicated for a single 64 GB P2 card. Two cards double the recording time.
Recording settings and recording function table
The recording modes of the camera can be made to operate as described below using\
 the setting menus.
Operating 
mode
Recording settingEnabled and disabled functions and operations
REC 
SIGNAL
(MENU)
REC 
FUNCTION
(MENU)
REC FORMAT, 
CAMERA MODE
(MENU)
VFR
(MENU)
PRE REC 
function
Proxy 
recording
(Thumbnail 
menu) 
(optional)
1394 
output
TEXT 
MEMO
SHOT 
MARK
Recording via 
1394 input1394DisabledDisabled  
(enabled at 480i)
Disabled
DisabledDisabled
DisabledEnabledEnabled
INTERVAL REC
CAMERA
INTERVAL
60i, 60P, 30P only
Disabled
(Enabled at 
playback *3)DisabledDisabledONE SHOT RECONE SHOT
LOOP RECLOOPEnabled *3Disabled *4
Native VFR
NORMAL
24PN, 30PN
ONDisabled
(Enabled at 
playback *3)
EnabledEnabled
Native recording
 (VFR OFF)OFF
Standard VFR
Other than 24PN and 
30PN
ONEnabled *3
Standerd 
recording 
(VFR OFF)
OFFEnabledEnabledEnabled *3
*3 DV/DVCPRO only disabled in AVC-Intra mode
*4 Enabled in PAUSE mode after LOOP REC
Selecting video output
The table below lists available video output formats.
Use the setting menus listed below to select video output.
Setting menuSetting
SDI SELECT
(OUTPUT SEL screen)
Select the signal format (from AUTO, 1080i, 480i) to be output via  
the SDI OUT connector *5.
SETUP
(SYSTEM SETUP screen)
Select the setup level for the signal (composite) output via the VIDEO\
 OUT connector.
 0%: 0% setup level for both output and recording
 7.5%A: 7.5% setup level for output only (0% for recording)
 The SETUP menu setting is enabled also during playback.
DOWNCON MODE
(OUTPUT SEL screen)
Select the screen type for down-converted output (VIDEO OUT and SDI SELECT output 
as 480i) of HD mode (1080i, 720P).
*5 HD (1080i, 720P) output cannot display thumbnails and SDI OUT outpu\
ts black screen. 
						

							

ChapterAdjustmentsandSettingsforRecording

List of recording, playback and output formats
Camera recording mode (when the REC SIGNAL option is set to CAMERA)
Setting
Recording format *1
SDI OUT *2
1394 outputSYSTEMMODERECFORMATCAMERAMODEVFRFRAMERATE[FRAME]Video formatAudio
1080-59.94i
AVC-I 100/60i(AVC-I 50/60i)
Disabled
DisabledDisabled
1080/60i
AVC-I 100(AVC-I 50)
1080-59.94i
4chNo outputAVC-I 100/30PN(AVC-I 50/30PN)1080/30PNNative1080-29.97PsFOver59.94i 2:2
AVC-I 100/24PN(AVC-I 50/24PN)1080/24PNNative1080-23.98PsFOver59.94i 2:3
DVCPRO HD/60i
60i1080/60i
DVCPRO HD
1080-59.94i
4ch1080-59.94iDVCPRO HD
30P1080/30P Over60i 2:2 Pull Down1080-29.97PsFOver59.94i 2:2
24P1080/24P Over60i 2:3 Pull Down1080-23.98PsFOver59.94i 2:3
24PA1080/24PA Over60i 2:3:3:2 Pull Down1080-23.98PsFOver59.94i 2:3:3:2
720-59.94P
AVC-I 100/60P(AVC-I 50/60P)
Disabled
OFFDisabled720/60P
AVC-I 100(AVC-I 50)
720-59.94P4ch
No output
ON12-60720-59.94P VFR
AVC-I 100/30PN(AVC-I 50/30PN)
OFFDisabled720/30PN Native720-29.97POver59.94P 2:24ch
ON
30
Other than 30720/30PN Native VFR(Audio cannot be recorded)720-59.94P VFRMuted
AVC-I 100/24PN(AVC-I 50/24PN)
OFFDisabled720/24PN Native720-23.98POver59.94P 2:34ch
ON
24
Other than 24720/24PN Native VFR(Audio cannot be recorded)720-59.94P VFRMuted
DVCPRO HD/60P
OFFDisabled720/60P
DVCPRO HD
720-59.94P
4ch
720-59.94PDVCPRO HDON
60
30720/30P Over60P 2:2 Pull Down720-29.97POver59.94P 2:2
24720/24P Over60P 2:3 Pull Down720-23.98POver59.94P 2:3
Other than above720/60P VFR720-59.94P VFR
DVDPRP HD/30PN
OFFDisabled720/30PN Native720-29.97POver59.94P 2:2
No output *4
ON
30
Other than 30720/30PN Native VFR(Audio cannot be recorded)720-59.94P VFRMuted
DVDPRP HD/24PN
OFFDisabled720/24PN Native720-23.98POver59.94P 2:34ch
ON
24
Other than 24720/24PN Native VFR(Audio cannot be recorded)720-59.94P VFRMuted
480-59.94iDVCPRO50/60iDVCPRO/60iDV/60i
60i
DisabledDisabled
480/60i
DVCPRO50DVCPRO*5
DV*6
480-59.94i
4ch or 2ch*3
480-59.94iDVCPRO50DVCPRO*5
DV*6
30P480/30P Over60i 2:2 Pull Down480-29.97PsFOver59.94i 2:2
24P480/24P Over60i 2:3 Pull Down480-23.98PsFOver59.94i 2:3
24PA480/24PA Over60i2:3:3:2 Pull Down480-23.98PsFOver59.94i 2:3:3:2
*1 24P and 30P indicate recording at 23.98P and 29.97P, respectively, while 60P and 60i indicate recording at 59.94P and 
59.94i, respectively. Native mode records active frames only.
*2 Varies with SDI SELECT option. In the table above the SDI SELECT option i\
s set to AUTO.
AUTO: depends on SYSTEM MODE
1080i: outputs 1080i also when the SYSTEM MODE is 720P.
480i: outputs as 480i at all times
*3 Uses a 4ch setting for DVCPRO50 and observes the 2CH or 4CH setting in t\
he menu option 25M REC CH SEL in the 
AUDIO SETUP screen for DVCPRO and DV.
*4 Outputs 720-59.94P DVCPRO HD during playback.
*5 For DVCPRO/60i
*6 For DV/60i
 NOTE
VIDEO OUT outputs SD signals (480i) at all times. 
						

							

ChapterAdjustmentsandSettingsforRecording
1394 input recording mode (when the REC SIGNALoption is set to 1394)
Setting
Recording format *1
SDI OUT *2
SYSTEM
MODE
REC
FORMAT
CAMERA
MODEVFR
FRAME
RATE
[FRAME]
Video formatAudio
1080-59.94iDisabledDisabledDisabledDisabled1080/60iDVCPRO HD1080-59.94i4ch
720-59.94PDisabledDisabledDisabledDisabled720/60P720-59.94P4ch
480-59.94i
DVCPRO50/60i
DisabledDisabledDisabled480/60i
DVCPRO50
480-59.94i
4ch
DVCPRO/60iDVCPRO2ch
DV/60iDV2ch or 4ch*3
*1 60P and 60i is recorded at 59.94P and 59.94i, respectively.
*2 Varies with the SDI SELECT option. The table above shows operating condit\
ions when the SDI SELECT option is set to 
AUTO.
AUTO: depends on SYSTEM MODE
1080i: outputs 1080i also when the SYSTEM MODE is 720P.
480i: outputs as 480i at all times
*3 32 kHz 4ch input is converted and recorded at 48 kHz 4ch. 
						

							

ChapterAdjustmentsandSettingsforRecording

Adjusting the White Balance and Black Balance
To record high-quality video with the AG-HPX300P, the 
black and white balances must be adjusted according to 
conditions.
For higher quality, it is recommended that the adjustments 
should be made in this order AWB (white balance 
adjustment)  ABB (black balance adjustment)  AWB 
(white balance adjustment).
Adjusting the White Balance
Whenever light conditions change, the white balance must 
be readjusted.
To adjust the white balance, follow the steps below.
cdeba
a ND FILTER control
This control adjusts the amount of light entering the 
MOS sensor.
b AUTO W/B BAL switch
Use for automatic control of white balance.
c GAIN selector switch
Normally set to 0 dB. If this is too dark, adjust gain as 
necessary.
d OUTPUT selector switch
Set to CAM.
e WHITE BAL switch
Set to A or B.
1 SettheGAIN,OUTPUTand WHITEBAL
switches.
2AdjusttheNDFILTERcontrolaccordingtothe
lightconditions.
For examples of ND FILTER adjustments, see 
[Shooting and Recording/Playback Functions 
Section] (page 18).
3Placeawhitepatternatapointwherethelight
conditionsmatchthoseforthelightsourceof
thesubject. Thenzoom-inonthewhitepattern
sothatwhitecolourappearsinthescreen.
•   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.
 NOTE
•   Do not point the camera at a high-brightness area.
•  
The white object must appear at the center of the 
screen.
1/ormoreofthescreeninwidth
1/ormoreofthe
screeninheight
4 Adjustthelensiris.
•  Use the YGET function (for details, refer to 
page 53) and adjust the iris to a approximately 
70% of incoming light.
5 TurntheAUTO W/BBALswitchtowardAWB
andreleaseit.
•  The switch returns to the central position with the 
white balance automatically adjusted.
6 Duringanadjustment,theviewfinderdisplays
thefollowingmessage:
AWB   Ach   ACTIVE 
7Theadjustmentwilltakeeffectinafew
seconds,andthefollowingmessagewill
appear:
•  The adjusted value is automatically stored in the 
selected memory (A or B).
AWB   A   OK   3.2K 
•  “C TEMP+7” to “C TEMP-7” will appear when 
COLOR TEMP of the scene file is set to the value 
other than 0. 
						

							
0
ChapterAdjustmentsandSettingsforRecording

8Ifthesubject’scolourtemperatureislower
than00Korhigherthan00Kthefollowing
messageappears:
•  If the arrow points down (  ) the actual colour 
temperature is lower than the temperature 
indicated. If the arrow points up (  ) the actual 
temperature is higher than the temperature 
indicated.
AWB   A   OK   2.3K    
When you have no time to adjust the 
white balance
Position the WHITE BAL switch at PRST.
•   Turning the AUTO W/B BAL switch to AWB toggles the 
color temperature between 3200K and 5600K.
When the white balance has not been 
automatically adjusted
When the white balance has not been successfully 
adjusted, the viewfinder displays an error message.
Error messageDescription
AWB Ach  
(or Bch) NG
The color temperature is too high or 
too low.
LOW LIGHTThere is insufficient light.
LEVEL OVERThere is too much light.
Viewfinder displays related to white 
balance
See [Viewfinder Screen Status Displays] (page 65).
Setting auto tracking white balance (ATW)
This camera is equipped with an auto tracking white 
balance (ATW) function that automatically adjusts the white 
balance of images in accordance with lighting conditions.
The ATW function can be assigned to the WHITE BAL 
switch B by setting the menu option ATW in the SW MODE 
screen to B ch.
It can also be assigned to the USER MAIN, USER1, USER2 
buttons.
For details, refer to [Assigning functions to USER buttons] 
(page 53).
PUSH  MENU  TO  RETURN 
MID GAINHIGH GAINATWATW TYPEW.BAL.PRESETUSER MAIN
0dB6dB9dBBch1
USER1REC REVIEW
3.2KDRS
LOW GAIN
S W     M O D E
Cancelling auto tracking white balance
Press the USER button to which ATW was assigned a 
second time or change the WHITE BAL switch position. If 
ATW was assigned to the WHITE BAL switch B, the USER 
button cannot be used to cancel the function.
 NOTE
This function does not provide a 100% accurate white balance. 
The tracking performance relative to changes in ambient 
lighting and white balance performance have been given a 
degree of latitude.
Adjusting the Black Balance
The black balance must be adjusted when:
•   You use your AG-HPX300P the first time.
•  Your AG-HPX300P has not been used for some time.
•  The ambient temperature has changed substantially.
•  The gain switchover value has been changed.
•  The menu options SYSTEM MODE and REC FORMAT in 
the SYSTEM SETUP screen.
Adjust the black balance before shooting to ensure 
optimum video quality.
ba
a  AUTO W/B BAL switch
Use for automatic control of white balance.
b OUTPUT selector switch
Set to CAM.
1 TilttheAUTO W/BBALswitchsothatitis
positionedat[ABB],thenreleaseit.
•  The switch returns to the central position with the 
black balance automatically adjusted.
2 Duringadjustment,theviewfinderdisplaysthe
followingmessage:
ABB   ACTIVE 
 NOTE
Duringadjustment,thelensirisautomatically
becomesCLOSE.