Axis 0619-001 ~ EOL Axis Q3505-VE User Manual

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AXISQ3505–VEFixedDomeNetworkCamera

VideoandAudio

Important

UseWDRincombinationwithautomaticexposurecontrol.Otherexposuresettingscouldgiveundesirableresults.

Note

WDRisonlyavailableifyouhaveselectedacapturemodethatsupportsWDR.SeeCongureCaptureModeonpage10.

ExposureSettings

Conguretheexposuresettingstosuittheimagequalityrequirementsinrelationtolighting,framerateandbandwidth

considerations.

Exposurevalue-Clickinthebartone-tunetheexposure.

Exposurecontrol-Thissettingisusedtoadapttotheamountoflightused.Automaticisthedefaultsettingandcanbeusedin

mostsituations.Theshutterspeedisautomaticallysettoproduceoptimumimagequality.Flicker-free50or60Hzisusedtoremove

ickerwhichcanbecausedbyuorescentandotherlightsources.TheHoldcurrentoptionlocksthecurrentexposuresettings.

EnableBacklightcompensation-Enablethisoptionifabrightspotoflight,forexamplealightbulb,causesotherareasin

theimagetoappeartoodark.

Exposurezones-Thissettingdetermineswhichpartoftheimageisusedtocalculatetheexposure.Formostsituations,theAuto

settingcanbeused.Forparticularrequirements,selectapredenedarea.

Exposurepriority-WhenMotionisprioritizedandmaximumShuttertimeissettoasmallvalue,motionblurintheimageis

minimized.Thiscanbeusefulforrecognitionofmovingobjectssuchaspeopleandvehicles.However,prioritizingmotionmaycause

anincreaseinimagenoise,especiallyinlowlightsituations.WhenLownoiseisprioritizedandGainissettoasmallvalue,image

noiseisminimized.Thelesizeisreduced,whichcanbeusefulifstoragespaceorbandwidthislimited.However,prioritizinglow

noisemayresultinaverydarkimage,especiallyinlowlightsituations.

Shutter&Gain

Theshutterandgainsettingsaffecttheamountofmotionblurandnoiseintheimage.Toadapttodifferentlighting,available

storagespaceandbandwidth,itisoftennecessarytoprioritizeeitherlowmotionblurorlownoise.TheAxisproductallows

usingdifferentprioritizationinnormallightandinlowlight.

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

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Axis 0619-001 ~ EOL Q3505-VE 22mm Fixed Dome Network Camera 0619-001