SRP BlurFix Air ND16/CP User manual

BlurFixAirInstructions

Introduction

CongratulationsonyourpurchaseoftheBlurFixAirwithfilter(CP,ND4,orND8/CP)!Youhavepurchased

aqualityfilterforyourGoProHero3orHero3+camera.TheBlurFixAirisintendedforlightweight

applicationsorapplicationswheretheGoProcameraisusedwithoutthehousingsothatamicrophonecan

belinkedtothecamera(i.e.airplanecockpitduringinstruction,racecardashboard,etc.)TheBlurFixAir

withfilterweighsonly7.6gramsmakingitidealforquadcopteruse.Ifusedwithagimbal,youmustcheck

withyourgimbalmanufacturertoensuretheadditionalweightisallowableandtheBlurFixAirwillnotcause

damagetothegimbalorcauseittoovercorrectandgolimp.Likemanyofourfilteradapters,theBlurFix

AirisCNCmachinedoutofDelrin®whichismoreexpensivethanbilletaluminumbyvolumethisisnotjust

anothercheapinjectionmoldedproduct.DelrinwasselectedsothattheBlurFixAirwillpreciselyslipover

thelensflangeonyourcamera.We'veincludedanoptionaloringwhichcanbeinstalledtoallowfora

tighterfitshouldyouchoosetouseit,asthelensflangecanvaryslightlyfromcameratocamera.We

recommendinstallingtheBlurFixAirwithouttheoring.Ifthefitisacceptableforyourneedsthenoring

installationisnotnecessary.Ifyoudesireatighterfitorknowthatyouareusingthefilterinanextreme

vibrationenvironmentthenyoushouldinstalltheprovidedoringaccordingtotheinstructionsinoneofthe

followingsections.BesuretotightentheBlurFixAirbeforeyourfirstinstallation(seePreinstallation

Instructionsfordetails). 

FilterSelection

TheBlurFixAircomeswithyourchoiceoffilters.Theseincludeacircularpolarizer(CP),neutraldensity4

(ND4),orcombinationneutraldensity8(ND8)withCPfilter.FiltersareusedwiththeGoProtocombatone

orbothofthefollowingissues:glareandrollingshuttereffects.Glareiscommonlyfoundonthesurfaceof

waterandwindshields/windows.ACPfiltercanbeadjustedtocutdownonglareandiscommonlyusedin

fishingvideosoronthedashofaracecar.Theeffectcanbedramatic.Forinstance,infishingvideosaCP

filtercanmakethedifferencebetweenseeingyourcatchjustbelowthesurfaceorseeingonlysunlight

reflectedoffthewater'ssurface.Inaddition,CPfilterswillmaketheskyappearbluerandcausecloudsto

havemorecontrast.Whenusedinsnowyconditions,aCPfilterwilladdcontrast,allowingtheviewerto

distinguishfeaturesthatwouldnormallybeoverexposed.

NeutralDensityfiltersreduceoreliminatetheeffectsofrollingshutter,suchasthejelloeffectandpropblur.

Inhighvibrationenvironmentslikeaquadcopterplatform,thevideocommonlyappearstobeshotthrougha

bowlofclearjello.AnNDfilterslowsdowntheautomaticshutterspeedbyreducingtheamountoflightthat

thecameradetects.Thiswillsignificantlyreducethejelloeffect.NDfilterscomeindifferentlevelsoflight

reduction.DarkerNDfiltersshouldbeusedonbrighterdays(i.e.ND8)andlessdarkNDfiltersareusedon

moderatelybrightdays(i.e.ND4).Experimentingwithdifferentfiltersindifferentlightconditionsisthebest

waytodeterminewhichfilterisright.Propblurreferstotheartifactsthatcommonlyoccurwhenfilminga

propellerorrotorusingastockcamera.Thepropelleroftenisfragmentedandisnotwhat'sseenbythe

operatorinreallife.AnNDfilterusedinthesesituationsslowsdowntheshutterspeedandreducesor

eliminatestheseartifacts.Again,thisreductiondependsontheNDfilterratingandthelightingconditions.

ExperimentationisrecommendedtoselecttheoptimalNDfilter. 

PreInstallationInstructions

BeforeinstallingtheBlurFixAir,itisimportanttomakesurethatthetwopiecesoftheBlurFixAirare

screwedtogethertightly.TheBlurFixAirisatwopiecedesignthatallowsyoutotakethefilterframeapart

inordertocleanthefilterglasscompletely.Ifthetwopiecesarenotscrewedtogethertightlythenthe

piecescanunscrewthemselvesinahighvibrationenvironment(i.e.quadcopterorairplaneuse).Toensure

thetwopiecesdonotcomeapartinmidfilm,itisimportantthatyouscrewthepiecestogetherBEFORE

installingtheBlurFixAironyourcamera.Thisisdonebypressingthesmallestdiameterpieceagainstthe

bottomofarubbersoledshoeusingthepalmofyourhandandthenturningtheunitclockwise.After

touchingthesurfaceofthefilterglasswithyourhandyoushouldcleantheoutsidesurfaceusingthe

providedmicrofiberclothandalenscleaningsolution.Neverusethecameraasa"wrench"toholdthe

BlurFixAirwhileyouturntheoutsidepieceoftheframethiscandamageyourcamera.

ThefollowingimageshowsusingthebacksideofamousepadtotightentheBlurFixAir.



InstallingtheBlurFixAir

ToinstalltheBlurFixAir,pushitontotheGoPrountiltheframebottomsoutonthecamerabody.Never

rotatetheBlurFixAirwhileitisonthecamera.ThediameteroftheGoProlensbodymayvaryslightly.Ifthe

fitisnotastightasdesired,installtheincludedoringintheoringgroove.Thisisdonebyfirsttakingthe

twopiecesoftheBlurFixAirframeapart(seeDisassemblyofBlurFixAir).Taketheprovidedoringand

installitintheoringgroovelocatedontheinsideofthesmallerframepiece.Useyourindexfingertopress

theoringintothegroove.SlideyourfingerallthewayaroundtheinsideoftheBlurFixAirtomakesurethat

theoringisseated.BeforeputtingtheBlurFixAirbacktogether,installthesmallerpieceonthecameraby

itself.Makesuretheoringisnotpinchedandslipsoverthecameralensflange.Onceitslipsover,the

oringwillbeseatedproperlyandyoucanreassembletheunit.

DisassemblyoftheBlurFixAir

TheBlurFixAircanbedisassembledsothatthefilterglasscanberemovedandcleaned.Todisassemble,

pressthesmallestdiameterpieceagainstthebottomofarubbersoledshoeusingthepalmofyourhand

andthenturntheunitcounterclockwise.Itmaytakealotofpressuretogetenoughfrictiontospinthe

piecesapart,sodon'tbeshy.Oncethetwopiecesareapartthefilterglasswillfalloutofthefemalepiece,

somakesureyoudisassembletheBlurFixAiroverasurfacethatisconducivetothefilterglassdropping

out. 

AssemblyoftheBlurFixAir

TheBlurFixAirisassembledinjustthereverseasthedisassemblyinstructions.First,cleanthefilter

thoroughly(seeCleaningtheFilter).Next,ifthefilterisaCPfilter,makesureitisorientedproperly(see

DeterminingCircularPolarizerOrientation).Usingcarenottotouchthesurfaceofthefilter,dropthefilter

intothefemalepieceoftheBlurFixAir.Finally,screwthetwopiecesofthefilterframetogether.Tighten

thetwopiecesthoroughly.Thisisdonebypressingthesmallestdiameterpieceagainstthebottomofa

rubbersoledshoeusingthepalmofyourhandandthenturningtheunitclockwise.Aftertouchingthe

surfaceofthefilterglasswithyourhand,youshouldcleantheoutsidesurfaceusingtheprovidedmicrofiber

clothandalenscleaningsolution. 

CleaningtheFilter

DisassembletheBlurFixAir(seeDisassemblyoftheBlurFixAir).Usethemicrofiberpatchincludedinthe

tinfilterholderandSRP’slenscleaner(soldseparately)tocleanthefilterglassthoroughly.Reassemblethe

BlurFixAir(seeAssemblyofBlurFixAir). 

DeterminingCircularPolarizerOrientation

Apolarizedfilterisintendedtobelookedthroughinonedirection.Inotherwords,ifyouflipthefilteraround

andlookthroughitintheoppositedirection(regardlessofrotation)thepolarizationpropertiesarenot

effective.IfyoutakeyourBlurFixAiraparttocleanthefilteryoucancheckthepolarizerorientationas

follows:

1. HoldthefilterupbetweenyouandanLCDscreen(i.e.LCDcomputer,tv,orphonescreen).

2. Rotatethefilterandnotehowdarkthescreenbecomes.

3. Flipthefilteroverandrepeat.

4. Thefilterorientationthatcreatesthedarkestscreenindicatestheproperorientation.

Thefollowingphotosshowlookingthroughapolarizedfilterintheincorrect(left)andcorrect(right)

directions.Thefilterwasrotatedtoitsdarkestlevelwhenlookingthroughineachdirectionandtheseare

theresults.



Ifyoudon'thaveanLCDscreenhandybecauseyouareoutfilminganddon'thaveyourphoneonyou,then

youcanrepeatthestepswhileholdingthefilterbetweenyouandtheskyorwater.Lookthroughthefilter

onedirectionandturnthefilter360degrees.Thenflipthefilteroverandlookthroughitintheotherdirection

andturnit360degrees.Whicheverdirectionhasthemostdramaticchangesasyourotateitistheright

directiontolookthroughthefilter.Installtheglasssothatthecameraislookingthroughthefilterinthe

samedirection. 

HowtoSetPolarizationWhenFilming

RemovetheBlurFixAirfromtheGoProcamera.HoldtheBlurFixAirsothatyoucanseethroughitclearly.

RotatetheBlurFixAiruntilyouseethedesiredlevelofpolarization.Notetheorientationofthefilterusing

themarkingsonthesideoftheframe.ThemarkingsontheoutsideofthefilterincludetheSRPlogoand

thetypeoffilter(CPorND8/CP).InstalltheBlurFixAirontheGoProinthissameorientation. 

Asanexample,ifflyingaquadcopteroveralakeonasunnydaythevideographershouldfirstdeterminethe

directionthatthequadcopterwillbepredominatelyfilmingfrom.Heshouldthenorienthimselfsothatheis

lookingatthesurfaceofthewaterinasmuchthesameorientationaspossible.Holdingthefilteroutinfront

ofhim,heshouldrotatethefiltertothepointwhereglareonthesurfaceofthewaterisreducedthemost.

ThenwithoutrotatingthefilterwithrespecttothegroundhewouldnotewheretheSRPlogois,using

straightdownasthereference.NexthewouldpressthefilterontothecamerasothattheSRPlogoisatthe

sameorientationwithrespecttostraightdown. 



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