JVC GY-DV5001 manual Gain Sensitivity Adjustment, Relationship between gain, iris and shutter

Page 86

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.

GAIN SWITCHING

GAIN switch

AUTO IRISFULL AUTO BLACKLOLUX

MODE

BACK L

STRETCH

VTR

NORMAL

NORMAL

 

SPOT L

COMPRESS

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

 

 

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

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 71 for details.

The gain transition can be made smoother by selecting “SMOOTH TRANS” on the CAMERA OPERATION menu screen.

See page 71.

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

GAIN BOOST UNDER LOLUX CONDITION

LOLUX on/off button

AUTO IRIS

FULL AUTO

BLACK

LOLUX

BACK L

STRETCH

MODE

VTR

NORMAL

NORMAL

 

SPOT L

COMPRESS

CAM

 

 

POWER VTR

ON OFF

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 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.

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

 

 

1/50

1/200

 

LOLUX

 

ALC

 

AUTOMATIC IRIS

 

 

 

EEI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F1.4

 

F11

F16

 

 

 

E-86

Image 86
Contents GY-DV5001MANUEL D’INSTRUCTIONS Instrucciones Istruzioni LWT0074-001C-HThese instructions are for the GY-DV5000E and GY-DV5001E DV signal input is possible with the GY-DV5001EPort Cable Length Rating plate serial number plate is on the top frame Main Features AC Operation Battery Pack Operation Optional Main FeaturesConnecting a Video Component with DV Connector 11-11Precautions for Proper Use IntroductionHead cleaner Tape guides & rollers Routine and Periodical MaintenancePrecautions for Use of Head Cleaning Tape Time managementVideocassette to be Used Battery Pack to be UsedUse JVC’s videocassette tapes marked with the or Symbol For recording and storing videotapes in the best conditionSmear and Blooming Characteristic CCD PhenomenaCondensation Moire or AliasingCONTROLS, Indicators and Connectors Front SectionLens mounting ring/Lens lock lever Auto WHITE/ACCU Focus switchFilter Colour temperature conversion filter control knob White BalanceRight Side Section VTR VTR mode indicator Black Black stretch/black compression switchCAM Camera mode indicator Power Power ON/OFF switchRight Side Section Cont’d # Counter Counter display switch CH-1/CH-2 Audio Input CH-1/CH-2 audio input selector switch@ Monitor Select Audio monitor selector switch $ TC GENE. Time code generator setting switchC OUT Y/C output connector 4-pin Monitor OUT Monitor output connector BNCCH1/CH2 Line OUT CH1/CH2 line output connector RCA Left Side SectionTop Section Rear Section Battery holder lock release knob DV connectorBattery holder Breaker Breaker buttonIndications on the LCD Monitor and in the Viewfinder Camera mode Example of displayVTR mode Example of display Status ScreensStatus Screens in the Camera Mode Indications on the LCD Monitor and in the Viewfinder Cont’d Status Screen in VTR Mode Magnified Status Indications on the LCD Monitor Ntsc Inhibit Cleaning TapeHead Cleaning Required REC InhibitMenu Setting Screen Auto White Balance Indication Camera mode onlySafety Zone Indication Camera mode only TOP Menu screen Camera modeZoom Lens Optional S14 x 7.3B12U1.5-Inch Viewfinder Optional VF-P115BBasic System Connections and Adjustments Basic SystemPin Hole Attaching the Zoom LensAttaching the Viewfinder ViewfinderAttaching the Microphone Optional Attaching the Microphone Using KA-A50UAttaching the Microphone Provided Tripod mounting holes Front mount clip Safety lever Lock leverAttaching the Tripod Base Provided Front base mountFlat shape type battery pack Anton-Bauer battery pack Power SupplyBattery Pack Operation Optional AC OperationBattery Pack Operation Optional Cont’d Using a Flat Shape Type Battery Pack optionalDetaching the Battery Pack Using an Anton-Bauer Battery PackAttaching the Battery Pack Recharging Operating Time with Battery PackBattery Pack Continuous Operating Time at 25 ˚C SonyMode Operation Turning the Power onTurning the Power OFF PreparationsREC Save Cassette Loading and UnloadingLoading the Cassette VTRCassette cover Eject button Unloading the CassetteOpen knob Opening the LCD monitor Adjusting the LCD monitorViewing the LCD Monitor Changing the orientation and angle of the LCD monitorDial Setting, Displaying and Recording the Date and TimeSetting the Date and Time MenuSetting, 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 DataAC outlet AA-P250 DC cable Charging the Built-in BatteryHow to charge Filter Camera SettingsScreen Size 43/LETTER Mode Selection Suitable LocationAdjust the position and angle of the viewfinder Viewfinder AdjustmentExternal Monitor Adjustment Colour video monitorBack Focus Adjustment Accu Focus can also be used in the above stepWhite Balance Adjustment MIC Audio Input Signal SelectionLine Using the audio input level control on the front section Recording Level AdjustmentAuto mode is selected in the Full Auto shooting mode Monitor Select switch Monitoring Audio during RecordingShooting Operation Basic Recording OperationAbout the Quick REC Start Mode When it is required to unload the videocassetteWhen the power should be turned off Tally lampScreen indications during Edit Search Searching for Recorded Scenes Edit SearchEdit Search Searching the tape in forward directionIf 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 Recording the Colour Bars Output switchColour bar signal of the built-in signal generator Power switch Mode switch Playback ModePlayback Procedure Display of time codeBlank Search Fast-Forward, RewindSearch Outputting CH-3, CH-4 Channel Audio SettingVTR indicator Shutter dial Status button TOP Menu screenDV connector DV cable VC-VDV204 4P-4P, VC-VDV206 4P- 6P Using External ComponentsConnecting a Video Component with DV Connector Date and time data SettingsOperation Connections Data transmitted from the playback unit is recordedTime Code Operation Presetting and Recording of Time CodeTC GENE. switch Displaying Time CodeZero-resetting the Time Code or User’s Bit Data Time code hour, min, sec, frameReproducing Time Codes Set the TC Gene switch inside the cover on the side toTC Gene switch Regen11-1Menu Screen Configuration Menu ScreensShutter STA 11-2Setting Menu ScreensStatus button Termenu dial Cursor Menu screenResetting the Menu Settings to the Factory Settings Storing Setting ValuesReading Out a Menu Settings File 11-3FILE Manage Menu Screen11-4TOP Menu Screen 11-5CAMERA Operation Menu Screen 11-6CAMERA Process Menu Screen 11-8SKIN Color Adjust Screen 11-7ADVANCED Process Screen11-9AUDIO Menu Screen 11-10 LCD/VF Menu Screen 11-10 LCD/VF Menu Screen Cont’d 11-11 TC/UB/CLOCK Menu Screen Header REC Menu Screen TIME/DATE Menu Screen Others Menu Screen Type Alarm VRBattery FrontWHT.BAL switch Features of the Camera SectionSetting procedure Full-Time Auto White Balance FAWManual adjustment Iris Brightness AdjustmentAutomatic adjustment Temporary auto iris adjustmentShutter STA TER Adjusting the Shutter SpeedOperation Set the Shutter item on the Camera Operation menu screenBand Video monitor Shooting the Screen Image on a Computer Monitor Variable Scan V.SCAN Basic operationSwitch Position Factory-Set Gain Gain Sensitivity AdjustmentGain switch Relationship between gain, iris and shutterSwitch Setup According to Illumination and Subject Automatic Setting ContentsDetection How to Use Skin DetailSetting the Color and Range of the Skin Detail Function AreaDisplay Using the Skin Detail FunctionStatus Screen indications on the LCD monitor and in the Viewfinder Alarm Indications and ActionsOthers Indication Condition RemedyTally lamp Error Code Error Details GY-DV5000 Operation RemedyBlinking Pattern Remaining Battery/Tape Alarm Sound Alarm Indications and Actions Cont’dCamera to operate REC/ALARM lamp Battery lamp Viewfinder Warning LampsTape. See Precautions for Use of Head Cleaning Tape on TroubleshootingSymptoms Remedy TypeOthers 2/2 menu screen Hour Meter DisplayShutter dial Status button Accumulated drum running timeSpecifications Viewfinder VF-P115B, VF-P116 Power zoom lens Specifications Cont’dExternal Dimensions unit mm YH16 ⋅ 7K12U, YH19 ⋅ 6.7K12U CanonGY-DV5000/GY-DV5001 DV Camcorder