JVC GY-DV5100 Gain Sensitivity Adjustment, Switch Setup According to Illumination and Subject

Page 68

12. FEATURES OF THE CAMERA SECTION

12-5 Gain (Sensitivity) Adjustment

The gain should be switched when the brightness is insufficient due to poor lighting conditions.

12. FEATURES OF THE CAMERA SECTION

12-6 Switch Setup According to Illumination and Subject

Various switch settings are performed to accommodate the conditions of the illumination and the subject when shooting.

GAIN SWITCHING

GAIN switch

AUTO IRIS

FULL AUTO

BLACK

 

LOLUX

 

BACK L

 

STRETCH

MODE

 

 

VTR

 

NORMAL

 

NORMAL

 

 

 

SPOT L

CAM

This switch allows the gain to be boosted when the illumination of the subject is insufficient.

Switch Position

Factory-Set Gain

 

 

L

0dB

 

 

M

9dB

 

 

H

18dB

SWITCH FUNCTIONS

AUTO IRIS

BLACK stretch/black

LEVEL switch

compress switch

AUTO IRIS

FULL AUTOBLACK

 

LOLUX

BACK L

 

STRETCH

MODE

 

VTR

NORMAL

 

NORMAL

SPOT L

 

 

CAM

 

 

 

1AUTO IRIS LEVEL switch

This switch allows the reference value for the auto iris adjustment to be changed according to the lighting condition. BACK L : When the subject is in backlit conditions.

Opens the iris wider than the standard setting. NORMAL: Normal lighting condition.

SPOT L : When the subject is under a spotlight.

Closes the iris narrower than the standard setting.

POWER VTR

ONOFF

CAUTION:

When gain is set to “ALC”, gain is boosted automatically as the illumination becomes darker. However, noise will increase a little because the screen becomes brighter as

When the GAIN switch is switched, the newly set gain is displayed for about 3 seconds on the Status (0, 1, 3) screen in the viewfinder or LCD monitor.

Set it to L (0 dB) in normal use.

■ The gain set for each of the switch positions can be changed

with “GAIN” on the CAMERA OPERATION menu screen.

It is also possible to use the ALC function that varies the gain

automatically.

A setting at –3dB corresponds to a decreased sensitivity

equivalent to the brightness of a 1/2 filter.

☞ See page 75 for details.

■ The gain transition can be made smoother by selecting

“SMOOTH TRANS” on the CAMERA OPERATION menu

POWER

VTR

ON

OFF

■The level of auto iris can be set in SPOT L/BACK L on the CAMERA OPERATION menu screen when the AUTO IRIS switch is set to BACK L or SPOT L. ☞ See page 75.

2BLACK stretch/black compress switch

This switch makes the image easier to see by varying the black gain.

BLACK STRETCH : Boosts the gain of black areas to improve the reproducibility of black.

NORMAL: Normal black gain.

BLACK COMPRESS : Attenuates the gain of black areas to make the image sharper.

the ALC (Auto Level Control) function boosts the gain more than in the case of manual adjustment.

screen.

☞ See page 75.

FULL AUTO SHOOTING (FAS) FUNCTION

However, note that the SMOOTH TRANS function is not available if gain is set to ALC.

FULL AUTO indicator

FULL AUTO/shooting button

The FAS function provides a wide range of compatibility with shooting conditions that varies as you move between indoors and outdoors or between bright and dark locations. It eliminates the need to change the switch and filter positions every time

GAIN BOOST UNDER LOLUX CONDITION

AUTO IRIS

BACK L

NORMAL

SPOT L

FULL AUTO

BLACK

 

LOLUX

 

STRETCH

MODE

 

VTR

 

NORMAL

 

 

you move.

The FAS function provides an integrated control of the ALC

LOLUX on/off button

The LOLUX button is used when the illumination is still insufficient after compensating with the GAIN switch. Pressing the LOLUX button again will enter the LOLUX mode. The gain up value during the LOLUX mode is set in LOLUX

CAM

(Automatic Level Control), Auto iris and FAW (Full-time Auto White balance) functions.

AUTO IRIS

FULL AUTO

BLACK

 

LOLUX

 

BACK L

 

STRETCH

MODE

 

 

VTR

 

NORMAL

 

NORMAL

 

SPOT L

CAM

POWER VTR

ONOFF

GAIN of the CAMERA OPERATION menu.

“LOLUX ON” is displayed for about 3 seconds on the Status (0, 1, 3) mode screen in the viewfinder or LCD monitor. Pressing the button again cancels the LOLUX mode. “LOLUX OFF” is displayed for about 3 seconds.

■When the LOLUX function is in use, the image definition on the screen will degrade to increase residual images, but this is not a malfunction.

POWER VTR

ONOFF

Operation

1.Simply press the FULL AUTO button to enter the FAS mode, in which the FULL AUTO indicator lights and “FAS” is displayed to the right in the viewfinder or LCD monitor.

2.Pressing the FULL AUTO button again cancels the FAS mode and turns the FULL AUTO indicator off.

CAUTION:

■Automatic Setting Contents

● If you have been displaying the color bars, the screen is

switched automatically to the camera image.

● The auto iris adjustment mode is entered even if the iris mode

switch of the lens is set to manual.

Relationship between gain, iris and shutter

0.2 Lx

8 Lx

32 Lx

2000 Lx

4200 Lx

18000 Lx

 

 

 

 

 

FULL AUTO SHOOTING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

36 dB

12dB

0 dB

 

 

1/60

1/240

 

LOLUX

 

ALC

 

AUTOMATIC IRIS

 

 

 

EEI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F1.4

 

F11

F16

 

 

 

●When the power is turned on while the camera is in the FAS mode, it takes about 10 seconds before the automatic adjustment of FAS is completed.

● The GAIN switch and WHT.BAL switch settings are defeated

in the FAS mode.

● The LOLUX button setting is active even in the FAS mode.

However, the ALC and EEI are defeated in the LOLUX mode,

in which only the auto iris adjustment and FAW are used.

● All of the previous setting contents are recalled when the

FAS mode is cancelled.

● The SMOOTH TRANS function is defeated during switch to

the FAS function.

92

93

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Contents GY-DV5100 For Customer UsePort Cable Length These instructions are for the GY-DV5100E and GY-DV5101EInformation RemarqueMain Features Main Features Contents Main FeaturesPrecautions for Proper Use IntroductionTime management Routine and Periodical MaintenancePrecautions for Use of Head Cleaning Tape Battery Pack to be Used Use JVC’s videocassette tapes marked with the or SymbolVideocassette to be Used For recording and storing videotapes in the best conditionFront Section Characteristic CCD PhenomenaCondensation Right Side Section Auto Iris Auto iris level switch Full Auto Full auto shooting ON/OFF button and indicatorCAM Camera mode indicator VTR VTR mode indicatorRight Side Section Cont’d Counter Counter display switch Selector switchTC GENE. Time code generator setting switch CH-1 Audio Select CH-1 audio selector switchLeft Side Section Top Section Rear SectionBattery holder Battery release leverBattery holder lock release knob Rear Section Cont’dVTR mode Example of display Indications on the LCD Monitor and in the ViewfinderStatus Screens StatusStatus Screens in the Camera Mode Indications on the LCD Monitor and in the Viewfinder Cont’dALC FASGain ALC Lolux ON, Lolux OFFAuto Knee ON, Auto Knee OFF Full Auto ON, Full Auto OFFStatus Screen in VTR Mode DV Signal Input Mode Every time the Display button is pressed Is shown in the VTR mode, the displayed contents changeMagnified Status Indications on the LCD Monitor No DV Signal Cleaning TapeHead Cleaning Required PAL InhibitLens Optional S14 x 7.3B12U1.5-Inch Viewfinder Optional Basic SystemAttaching the Microphone Using KA-A50U Attaching the Zoom LensAttaching the Microphone Provided Attaching the ViewfinderAttaching the Tripod Base Provided PinPower Supply Battery Pack Operation OptionalFlat shape type battery pack Anton-Bauer battery pack AC OperationBattery Pack Operation Optional Cont’d Attaching the NP-1B type BatteryAttaching the Battery Pack Detaching the Battery PackUsing an Anton-Bauer Battery Pack Attaching a Flat Shape Type Battery PackAttaching the Anton-Bauer Battery Holder To the connectors on the cameraOperating Time with Battery Pack Battery Pack Continuous Operating TimeRecharging At 25 ˚CTurning the Power on Turning the Power OFFMode Operation PreparationsCassette Loading and Unloading Unloading the CassetteLoading the Cassette REC SaveAdjusting the LCD monitor Viewing the LCD MonitorOpening the LCD monitor Changing the orientation and angle of the LCD monitorSetting the Date and Time Setting, Displaying and Recording the Date and TimeSetting the Date and Time Setting, Displaying and Recording the Date and Time Cont’d Clock Adjust menu screen Date Year/Month/DayDisplaying the Time and Date on the Screen Recording the Date and Time DataCharging the Built-in Battery How to chargeCamera Settings Screen Size 43/LETTER/SQUEEZE Mode SelectionFilter Suitable LocationViewfinder Adjustment External Monitor AdjustmentSmpte type color bars EBU type colour barsBack Focus Adjustment White Balance AdjustmentAudio Input Signal Selection Recording Level AdjustmentLine MICBasic Recording Operation Shooting OperationMonitoring Audio during Recording Searching for Recorded Scenes Edit Search If the Record-Standby Mode Continues Setting the time before the tape protection mode is engagedDescription Header REC menu screen contentsHeader REC Function During Header REC How to set the Header REC menu screenExecuting the Header REC Function Color bar signal of the built-in signal generator Colour bar signal of the built-in signal generatorRecording the Color Bars Recording the Colour BarsPlayback Mode Playback ProcedureFast-Forward, Rewind SearchSetting Variable Slow PlaybackOutputting CH-3, CH-4 Channel Audio Variable Slow PlaybackDV connector DV cable VC-VDV204 4P-4P, VC-VDV206 4P-6P Using External ComponentsConnecting a Video Component with DV Connector Connecting a Video Component with DV Connector Cont’d SettingsConnections OperationDisplaying Time Code Time code entered from the DV connectorTime Code Operation Presetting and Recording of Time Code Drop frame/Non-drop frame modeTC GENE. switch TC/UB/CLOCK menu screenZero-resetting the Time Code or User’s Bit Data Shutter dial Status button TOP Menu screenReproducing Time Codes RegenMenu Screens Menu Screen ConfigurationSetting Menu Screens Storing Setting Values Reading Out a Menu Settings FileResetting the Menu Settings to the Factory Settings File Manage Menu ScreenCamera Operation Menu Screen Camera Process Menu ScreenAdvanced Process Screen Skin Color Adjust Screen AUDIO/VIDEO Menu ScreenAUDIO/VIDEO Menu Screen Cont’d Audio Menu Screen Cont’d11-10 LCD/VF Menu Screen 11-10 LCD/VF Menu Screen Cont’d11-11 TC/UB/CLOCK Menu Screen Header REC Menu Screen TIME/DATE Menu ScreenOthers Menu Screen Features of the Camera Section Iris Brightness AdjustmentSetting procedure Full-Time Auto White Balance FAW Variable Scan V.SCAN Adjusting the Shutter SpeedShooting the Screen Image on a Computer Monitor Gain Sensitivity Adjustment Switch Setup According to Illumination and SubjectAutomatic Setting Contents Relationship between gain, iris and shutterSetting the Color and Range of the Skin Detail Function How to Use Skin DetailUsing the Skin Detail Function Alarm Indications and Actions OthersAlarm Indications and Actions Cont’d TroubleshootingSymptoms Remedy Alarm SoundHour Meter Display TOP Menu menu screenOthers 2/2 menu screen Accumulated drum running timeSpecifications Camera Section INPUT/OUTPUT SignalsAccessories Video GeneralQR JVC Digi Specifications Cont’dExternal Dimensions unit mm GY-DV5100/GY-DV5101 DV Camcorder GY-DV5100
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