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AXISQ3538–SLVEDomeCamera
Thedeviceinterface
Note
Theexposurezonesarerelatedtotheoriginalimage(un-rotated),andthenamesofthezonesapplytotheoriginalimage.
Thismeans,forexample,thatifthevideostreamisrotated90°,thentheUpperzonebecomestheRightzoneinthe
stream,andLeftbecomesLower.
•Automatic:Suitableformostsituations.
•Center:Usesaxedareainthecenteroftheimagetocalculatetheexposure.Theareahasaxedsizeand
positionintheliveview.
•Full
:Usestheentireliveviewtocalculatetheexposure.
•Upper
:Usesanareawithaxedsizeandpositionintheupperpartoftheimagetocalculatetheexposure.
•Lower
:Usesanareawithaxedsizeandpositioninthelowerpartoftheimagetocalculatetheexposure.
•Left
:Usesanareawithaxedsizeandpositionintheleftpartoftheimagetocalculatetheexposure.
•Right
:Usesanareawithaxedsizeandpositionintherightpartoftheimagetocalculatetheexposure.
•Spot:Usesanareawithaxedsizeandpositionintheliveviewtocalculatetheexposure.
•Custom:Usesanareaintheliveviewtocalculatetheexposure.Youcanadjustthesizeandpositionofthearea.
Maxshutter:Selecttheshutterspeedtoprovidethebestimage.Lowshutterspeeds(longerexposure)mightcausemotionblur
whenthereismovement,andatoohighshutterspeedmightaffecttheimagequality.Maxshutterworkswithmaxgainto
improvetheimage.
Maxgain:Selectthesuitablemaxgain.Ifyouincreasethemaxgain,itimprovesthevisiblelevelofdetailindarkimages,but
alsoincreasesthenoiselevel.Morenoisecanalsoresultinincreaseduseofbandwidthandstorage.Ifyousetthemaxgain
toahighvalue,imagescandifferalotifthelightconditionsareverydifferentfromdaytonight.Maxgainworkswithmax
shuttertoimprovetheimage.
Motion-adaptiveexposure
:Selecttoreducemotionblurinlow-lightconditions.
Blur-noisetrade-off:Usetheslidertoadjusttheprioritybetweenmotionblurandnoise.Ifyouwanttoprioritizelowbandwidth
andhavelessnoiseattheexpenseofdetailsinmovingobjects,movetheslidertowardsLownoise.Ifyouwanttoprioritizethe
preservationofdetailsinmovingobjectsattheexpenseofnoiseandbandwidth,movetheslidertowardsLowmotionblur.
Note
Youcanchangetheexposureeitherbyadjustingtheexposureorbyadjustingthegain.Ifyouincreasetheexposuretime,
itresultsinmoremotionblur,andifyouincreasethegainitresultsinmorenoise.IfyouadjusttheBlur-noisetrade-off
towardsLownoise,theexposurewillpreferlongerexposuretimesoversensorgainwhentheexposureisincreased,and
theoppositeifyouadjustthetrade-offtowardsLowmotionblur.Boththegainandexposuretimewilleventuallyreach
theirmaximumvaluesinlow-lightconditions,regardlessofthepriorityset.
Lockaperture
:TurnontokeeptheaperturesizesetbytheApertureslider.Turnofftoallowthecameratoautomatically
adjusttheaperturesize.Youcan,forexample,locktheapertureforsceneswithpermanentlightconditions.
Aperture
:Usetheslidertoadjusttheaperturesize,thatis,howmuchlightpassesthroughthelens.Toallowmorelight
toenterthesensorandtherebyproduceabrighterimageinlow-lightconditions,movetheslidertowardsOpen.Anopenaperture
alsoreducesthedepthofeld,whichmeansthatobjectsclosetoorfarfromthecameracanappearunfocused.Toallowmoreof
theimagetobeinfocus,movetheslidertowardsClosed.
Exposurelevel:Usetheslidertoadjusttheimageexposure.
Defog
:Turnontodetecttheeffectsoffoggyweatherandautomaticallyremovethemforaclearerimage.
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