Axis 0718-001 ~ EOL Q8665-LE 24V AC PTZ Network Camera 0718-001

Axis Q8665-LE User Manual - Page 22

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AXISQ8665-LEPTZNetworkCamera
Video
Shutterspeedisrelatedtotheamountoftimetheshutterisopenedandismeasuredinseconds(s).Aslowshutterspeedallows
morelighttoreachthesensorandcanhelpproduceabrighterimageinlowlightsituations.Ontheotherhand,aslowshutter
speedcancausemovingobjectstoappearblurry.
SetShutterto
Autotosettheshutterspeedautomatically.Ifrequired,useMaxshuttertolimittheshutterspeedtopreventtheframe
ratefrombeingreduced.
Forexample,toget30fps,setMaxshutterto1/30.
Fixedtouseaxedshutterspeed.
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.
TheDay/Nightshiftlevelbarhelpsdeterminewhenthecamerawillshiftfromdaymodetonightmode.Normally,thecamera
automaticallychangesmodefromdaytonightwhenverydark(level100intheslider).BysettingDay/Nightshiftleveltoa
lowervalue,thecamerawillchangetonightmodeearlier.
Built-inIRIlluminationsLEDs
WARNING
Riskofeyeinjury.DonotlookdirectlyintotheIRLEDatshortdistance.SincethelightprovidedfromtheIRLEDisoutsideof
thevisiblerange,itisnotpossibletoseeifitisactive.UsethecameratocheckiftheIRilluminationisactive.
TheIRilluminationcanbeactivatedorde-activatedfromtheproduct’sLiveViewpage.
OthersettingscanbedenedfromSetup>Video>CameraSettings.
De-selecttheEnableIRilluminationoptiontodisableIRilluminationaltogether.IfyoudisabletheSynchronizeIRilluminationwith
day/nightoption,IRilluminationwillnotbesynchronizedwithday/nightchanges.
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