Back Focus Adjustment | JVC GY-HD100, GY- HD101 instruction

PREPARATIONS FOR OPERATION

Back Focus Adjustment

It is only necessary to perform this when the lens is attached for the first time or when focusing is not correct in both the telephoto and wide-angle positions.

• It is easier to adjust back focus when the subject is more than 3 meters from the camera.

The optimal subject for this adjustment is a Siemens star chart.

1. Set the IRIS mode switch to M (Manual).

2. Set the zoom mode to M (Manual).

3. Open the iris by turning the iris ring.

If the illumination is too strong, reduce it or move to a darker place.

4. Turn the zoom lever until the lens is at the maximum tele- photo position.

5. Bring the subject into focus.

6. Set the lens to maximum wide-angle.

7. Loosen the back focus ring retaining knob.

8. View the same subject and adjust the back focus ring for the best possible focus.

9. Repeat steps 4. through 8. about three times for fine adjustment until the subject remains in focus in both the telephoto position and the wide-angle position.

10.Tighten the back focus ring retaining knob to secure the ring.

Siemens star chart

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Image 46

JVC GY-HD100, GY- HD101 manual Back Focus Adjustment

Contents

GY-HD101 For Customer UsePage Important Safety Instructions For USA and Canada Remarque Port Cable Length Accessories LensMicrophone Main Features Contents Contents Precautions for Proper Use Introduction Periodical Maintenance Precautions for Use of Head Cleaning TapeHead Cleaning Routine and Periodical Mainte- nance Videocassette to be Used Battery Pack to be Used„ For recording and storing videotapes Best condition Characteristic CCD Phenomena Condensation Zoom Lens Optional CONTROLS, Indicators and ConnectorsTh16 x 5.5BRMU Front Section Rear Section 5CAM/VTR Camera/VTR mode switch button 2CH-1/CH-2 Audio Select CH-1/CH-2 audio selector switch3TC Display TC/UB display switch LCD Door Right Side Section DStand BGAIN Sensitivity selector switchCWHT.BAL White balance switch HHDV/DV LED Left Side Section Top Section FDISPLAY Display button GVTR VTR indicatorTop Section Cont’d KPLAY/STILL Play/still button Indications on the LCD Monitor and in the Viewfinder „ Status Screens Setting Status Contents of Indications „ Status Screens in the Camera ModeIndications on the LCD Monitor and in the Viewfinder Cont’d Contents See ND1 Filter ND1 1/4ND Indication Indication Contents „ Status Screen in VTR Mode „ Alarm Message Display „ Auto White Balance Indication Camera mode only„ Menu Setting Screen „ Safety Zone Indication Camera mode only LCD Closed Normal LCD Preparations Basic System Attaching the Microphone Provided How to Attach the ViewfinderAttaching the Zoom Lens Provided Knob „ Inserting an SD Memory Card Inserting an SD Memory CardAbout the Viewfinder Cable „ Taking out the SD memory card „ How to charge „ Charging the Built-in BatteryAC Operation „ Attaching the Battery Pack on the GY HD100 Battery Operation„ Charging the Battery Pack „ Detaching the Battery Pack from the GY HD100 „ Operating Time with Battery Pack „ Remaining Battery Power Display„ Battery Recharge Times „ Precautions for the Battery Pack „ Turning the Power OFF Turning the Power on„ Turning the Power on Preparations for Operation „ Unloading the Cassette Loading/Unloading the Cassette„ Cassette Loading Mode Setting and Displaying the Date and Time „ Setting the Date and Time Style „ Setting the Date and Time „ Displaying the Time and Date on the Screen „ Setting Displaying Time Code Drop Presetting and Recording of Time CodeDrop frame/Non-drop frame mode NON „ Presetting user’s bit data Presetting and Recording of Time Code Cont’d„ Presetting time cord data „ Zero-resetting the Time Code or User’s Bit Data Screen Adjustment Viewfinder Adjustment Back Focus Adjustment „ Adjustment procedure White Balance Adjustment„ White Balance Adjustment „ Error messages „ Setting the REC Item Setting the Video Format„ Setting the Frame Rate Item „ About the Motion Smooth Function Screen Size 43/169 Mode Selection Camera SettingsND Filter „ Adjusting Audio during Recording Audio Input Signal Selection„ Selecting the audio signal input „ Selecting the CH-2 channel input con Nector „ Monitoring Audio during Recording LOW/MIDDLE/HIGH Basic Recording Operation Shooting Operation„ About the Focus Assist Function „ If the Record-Standby Mode Continues Shooting Operation Function/Initial Setting Header REC Function „ How to set the Header REC menu screen Fast-Forward, Rewind Playback ModePlayback Procedure Search Stereo Outputting AudioMIX Monitor PB Audio CH DV „ Connecting the IEEE1394 Cable Using External ComponentsConnecting the Video Signal Cables „ Displaying Alarms Dubbing with AV Devices HDV/DV Dubbing OFF „ Connections Backup Recording„ Settings „ Operation Menu Screen Configuration Menu Screens Setting Menu Screens TOP Menu Screen Setting Description Function/Setting bold characters indicate initial settingsVideo Format Menu Screen Native Connector G Unconnected Connected Output SignalInitial settings U model 7.5% E model 0.0% Auto 3200K Camera Operation Menu ScreenOFF High Camera Process 1/2 Menu ScreenMiddle Normal Camera Process 2/2 Menu Screen 108% Advanced Process Menu Screen Standard Skin Color Adjust Menu Screen Color Matrix Adjust Menu ScreenStop Step Switch Mode Menu ScreenREC Item Setting for Step Setting for Variable None AUDIO/MIC Menu Screen MIX 70-80% LCD/VF 1/3 Menu ScreenBlue Tape Remain LCD/VF 2/3 Menu ScreenTC/UB LCD Contrast LCD/VF 3/3 Menu ScreenVF Contrast Execute TC/UB/CLOCK Menu ScreenDrop Disable Header REC Menu Screen DATE+TIME TIME/DATE Menu ScreenBARS+CAM Variation Range U model MM/DD/YY E model DD/MM/YY 3MIN Others 1/2 Menu ScreenBlink Others 2/2 Menu Screen File Manage Menu Screen „ Loading a menu settings file„ Displaying the File Manage menu Screen „ Error displays „ Saving settingsFile Manage Menu Screen Cont’d „ Resetting the menu settings to the fac Tory settings „ Initializing formatting an SD memory Card How to Use Skin Detail Features of the Camera Section„ Setting the skin detail function color and range Features of the Camera Section „ Using the Skin Detail Function Outputting color bars Others Display Status Action Error Code Error Details GY-HD100 Operation Remedy Blinking Pattern Remaining Battery/Tape Viewfinder Screen Troubleshooting Symptoms Remedy European Union How to Display the Hour MeterInformation for Users on Disposal of Old Equipment Business users Other Countries outside the European Union Specifications Accessories