Axis Q1765-LE - Focus & Zoom

AXISQ1765-LENetworkCamera
VideoandAudio
Gain,measuredindecibel(dB),istheamountofamplicationappliedtotheimage.Ahighgainmayprovideabetterimageinlow
lightsituationsbutwillincreasetheamountofimagenoise.
SetGainto
•Autotosetthegainautomatically.Ifrequired,useMaxgaintolimittheappliedgain.
•Fixedtouseaxedgain.
WhenShutterandGainarebothsettoAuto,itispossibletosetthePrioritybetweenlowmotionblurandlownoisemanuallyandto
useadifferentPriorityinNormalLightandinLowLight.
Example
Consideranareawherepeopleorvehiclesmoveduringtheday,butwherethereshouldbenomovementsduringnight.Tobeableto,
forexample,recognizefacesorlicenseplates,movethenormallightpriorityslidertowardlowmotionblur.Atnighttime,motion
detectionismoreimportantthanidentication.Motionblurisacceptableandsincelowlightcancausealotofnoise,move
thelowlightpriorityslidertowardlownoise.
Example
Ifstoragespaceorbandwidthislimited,tryusingalowergain.Thiswillreduceimagenoiseandproducesmallerimageles.
Day/Night
TheIRcutlterpreventsinfrared(IR)lightfromreachingtheimagesensor.Inpoorlightingconditions,forexampleatnight,orwhen
usinganexternalIRlamp,settheIRcutltertoOff.Thisincreaseslightsensitivityandallowstheproductto“see”infraredlight.The
imageisshowninblackandwhitewhentheIRcutlterisoff.
IfusingautomaticExposurecontrol,settheIRcutltertoAutotoautomaticallyswitchbetweenOnandOffaccordingtothe
lightingconditions.
ThecameralensisIRcorrected,whichmeansthatitmaintainsfocusinmixedlight.Asmallfocusadjustmentisrecommended
whenIRilluminationisused.SelectEnablefocusadjustmentforIRilluminationtoautomaticallyadjustthefocuswhentheIRcut
lterswitchesbetweenonandoff.
TheDay/Nightshiftlevelbarhelpsdeterminewhenthecamerawillshiftfromdaymodetonightmode.Normally,thecamera
automaticallychangesmodefromdaytonightwhenverydark(level100intheslider).BysettingDay/Nightshiftleveltoa
lowervalue,thecamerawillchangetonightmodeearlier.
Built-inIRIlluminationsLEDs
WARNING
Riskofeyeinjury.DonotlookdirectlyintotheIRLEDatshortdistance.SincethelightprovidedfromtheIRLEDisoutsideof
thevisiblerange,itisnotpossibletoseeifitisactive.UsethecameratocheckiftheIRilluminationisactive.
TheIRilluminationcanbeactivatedorde-activated,anditsintensitycanbeincreasedordecreasedbymovingtheslider,from
theproduct’sLiveViewpage.
OthersettingscanbedenedfromSetup>Video&Audio>CameraSettings.
De-selecttheEnableIRilluminationoptiontodisableIRilluminationaltogether.IfyoudisabletheSynchronizeIRilluminationwith
day/nightoption,IRilluminationwillnotbesynchronizedwithday/nightchanges.
Focus&Zoom
GotoVideo&Audio>Focus&Zoomtochangefocusandzoomsettings.
SettheZoomtelelimittolimithowfarthecameracanbezoomedfromtheliveviewpage.Thedigitalzoomlevelisindicated
withtheletterD.Tocheckthezoomtelelimit,clickGoto.
SelectAutofocustoenableautofocus.
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