Axis P5635-E - Shutter, Gain, and Image Settings

AXISP5635–EPTZDomeNetworkCamera
VideoandAudio
Exposurezones-Thissettingdetermineswhichpartoftheimageisusedtocalculatetheexposure.Formostsituations,theAuto
settingcanbeused.Forparticularrequirements,selectapredenedarea.
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
detectionismoreimportantthanidentication.Motionblurisacceptableandsincelowlightcancausealotofnoise,move
thelowlightpriorityslidertowardlownoise.
Example
Ifstoragespaceorbandwidthislimited,tryusingalowergain.Thiswillreduceimagenoiseandproducesmallerimageles.
ImageSettings
Stabilizer-Whenmonitoringenvironmentsthataresubjecttovibrations(e.g.trafccontrol),imagesmayappeartobeunsteady.
SelectOnorOfftoenable/disablethestabilizer.Enablingthestabilizerwillsteadytheimageandwilllimitthedigitalzoom.
Seetheonlinehelpformoreinformation.
ImagefreezeonPTZ-SelectAllmovementstofreezetheimagewhilethecameraismovingduringapan,tiltorzoomoperation.
Oncethecamerareachesitsnewposition,theviewfromthatpositionisshown.Presetsfreezestheimageonlywhenthecamera
movesbetweenpresetpositions.
Day/Night
TheIRcutlterpreventsinfrared(IR)lightfromreachingtheimagesensor.Inpoorlightingconditions,forexampleatnight,orwhen
usinganexternalIRlamp,settheIRcutltertoOff.Thisincreaseslightsensitivityandallowstheproductto“see”infraredlight.The
imageisshowninblackandwhitewhentheIRcutlterisoff.
IfusingautomaticExposurecontrol,settheIRcutltertoAutotoautomaticallyswitchbetweenOnandOffaccordingtothe
lightingconditions.
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