JVC KY-F70 manual About ALC and EEI operations, E43

Page 43

About ALC and EEI operations

ALC refers to Automatic Level Control and EEI refers to shutter iris control.

The Automatic Level Control (ALC) operates under dark lighting and the electronic shutter (EEI) operates under bright lighting. Furthermore, setting the IRIS mode to AUTO will synchronize sensitivity, iris and electronic shutter and appropriate signal level can be acquired automatically at all times.

The ALC mode increases sensitivity from 0dB (ISO100) to +12dB (ISO400) under dark lighting and the EEI mode automatically adjusts the electronic shutter within the range of 1/7.5 to 1/

255.1(calculated value) when in FINE under bright lighting (1/30.2 to 1/255.1 for DRAFT). In other words, the signal level is adjusted in the range of 2 graduations of the aperture under dark lighting and 5 graduations when in FINE under bright lighting. When the iris is set to manual, the sensitivity and electronic shutter are continuously changed without changing the iris setting.

This feature holds the advantage of being able to record under changing light conditions without changing the depth of field.

Operational range

Light 1×

16

32

62.5

125

-

-

-

250

500

1000

2000

4000

8000

16000

32000

FINE	ALC

ISO400 ISO200

EEI

1/15 1/30 1/60 1/120 1/240

F1.4 F2 F2.8 F4 F5.6 F8 F11 F16

DRAFT	ALC

ISO400 ISO200

EEI

1/60 1/120 1/240

F1.4 F2 F2.8 F4 F5.6 F8 F11 F12

E43

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Contents This instruction book is made from 100% recycled paper Illustration with optional lens attachmentSafety Precautions Varning Table of Contents Memo Characters and symbols used in this instruction bookAccessories and attachments FeaturesIntroduction Phenomena unique to CCD Line and patterns may appear distorted when recordedFront and bottom Part names and their functionsRear Mode E10Ventilation hole E11 This lamp lights when the power of the main unit is onUsed to connect the lens cable Mounting the lens Remoter terminal Metal 10-pin, female Explanation of terminalsE12 E13 E14 For the power supply, always use the AA-P700 AC adapterBefore recording Basic systemAdapter E15AC adapter MO disk drive Model nameE16 InstallScrews Camera head Male Thread section Mount clamp ring Lens Female Lens remote controlMounting the lens E17AC adapter Connecting the powerClamp filter Attached power supply cable E18E19 Connecting a monitorMonitor terminal Do not set the ID of the MO drive side to other than Connecting an MO drive unitE20 ScsiScsi Set the ID of the printer side to other than Connecting a printerDip switches E21E22 Mounting the cameraMounting method Changing the camera mounting bracket positionFall prevention Fall prevention wire chain 6mm Camera headE23 Set to on E24Minal on the rear of the main unit Set to OFFVGA mode and lens settings are made from the menu screen Menu settingsVGA mode settings Lens settingsPlay menu screen Time and date settingsTime Adjust screen E26OK display screen E27E28 Monitor adjustmentTurn the main unit power on Adjust the video monitor Set using the main unit dip switches Monitor settingsE29 Focus adjustmentPress the Menu button to return to the normal screen White Balance screen White balance adjustmentE30 REC Menu screen Menu item Set valueAuto white in operation E31Auto white operation completed E32 White shading adjustmentREC Menu screen E33 Freeze display Basic operationsRecording images to the main unit memory E34E35 Returning to the REC modePress the Mode button to enter the Play mode Playing back images from the memoryE36 Saving images from the memory to an MO diskE37 Set to either the Freeze or Play modeOutputting images from the memory to a printer Use a printer with an Scsi input terminalE38 Clearing images from the memoryVideo Memory Clear Memory cleared E39Recording a PC monitor Various recording methodsE40 Outputting negative images System Setting screenE41 High speed shutter only Timing chart Sxga modeSynchronizing flash and Freeze E42E43 About ALC and EEI operationsMenu screen flow Menu screen settingsE44 Process screen E45Exposure screen Freeze screenREC normal menu screen Menu item Set value Setting procedureREC normal menu screen E46E47 About the submenu screens of the normal REC menuPlay menu screen REC quick menu screenE48 Exposure screenE49 E50 E51 White Balance screenLevel G Mode OFFE52 ShadingProcess 1/3 screen Freeze screenE53 Used to set whether the gamma curve to determine @ADJUST set when changing the gamma curveE54 GammaFlare B Process 2/3 screenE55 Flare RStandard value E56Color MatrixE57 System Setting screenE58 Video ME.MORY Menu screen of the Play modeE59 Send PriorytyTor REC mode quick menu screenE60 Menu itemSensitivity can be changed when the sensitivity mode Sensitivity can be changed using the Level Submenu itemE61 E62 Resetting settingsMenu Reset screen SET button ResettingPress the Menu once more to return to the normal screen E63E64 Connecting to a PCCamera remote control software Compatible systemsE65 Printer Flash Freeze switchAC adapter Analog RGB, WEN, Hs, Vs, RS-232C Others SpecificationsE66 E67 External dimensions unit mmInch screw SL96172