产品详细描述：Recentyearsh***ewitnessedexpansi***inbothHDproductionandtherangeofprogramgenres.WithinthisenvironmenttheworldwidepopularityoftheHJ22ex7.6Blensasaflexiblemultipurposelensexhibitinghighopticalperformanceandeaseofoperationhasgrownsignificantly.Thecombinationofagenerous22xzoomratioandawide7.6mmfieldofviewmeetsnumerouschallengingproductionapplicati***thatincludedramas,documentaries,sports,newsetc.Anewlydevelopeddigitaldriveunithasfurtherstreamlinedthelensergonomicstofurtherempowercameraoperatorshootingflexibility.Thenewdriveunitwillbeidentifiedwithan“A”attheendofthemodelname-suchasIRSEAorIASEA.MainFeaturesHighSpecificationinCompactSizeThefocalrangeof7.6mmto167mmcanbefurtherextendto334mmusingthe2xrangeextenderincludedinthelens.Thishighlyflexiblelenshasbeenreducedinlengthto221.5mmandinweightto1.81kg(IRSEAtype)producingaremarkablycompactpackagethatsupportsabroadrangeofproducti***.HighopticalperformanceEvolvingdesigntechniques,advancedopticalmaterialsandopticalcoatings,andcontinuingrefinementstomanufacturingprocessesh***ecollectivelycontributedtotheHJ22ex7.6Blensh***ingveryhighopticalperformanceandextendedoperationalcapabilities.Specificallytheseincludealoweringoflongitudinalchromaticaberrationatthelongerfocallengths,andcurtailmentofsphericalandcomaticaberrati***.Adoptionofnewopticalmaterialsalsoaffordedareductionincurvatureoffield.Thelensfocusingsystemhasalsobeenimprovedovertheconventional2-groupinnerfocusintermsofanimprovedresolutionandcontrastatthepictureextremitiesespeciallyatthetelephotosideofthefocalrange.NewErgonomicDriveUnitBesidestheexceptionalopticalperformance,anotherremarkablecharacterofthisnewlensisit’snewlydesigneddriveunit.Withthegoalofpursuingeaseofoperation,Canonhasreachedanewdesignbasedonhumanergonomics,refinedbyalongtermresearchandtesting.Ofcourse,alltheadvantagesfromthecurrente-HDxsDigitalDriveUnitsuchas"InformationDisplayforusercustomizesetting","RotaryEncoderforvirtualstudiointegrationandprecisecontrol"and"EnhancedDigitalFuncti***"areinheritedtothenewdriveunit.SeemoreinformationfromourFAQLensHJ22ex7.6BIRSEA/IASEAZoomRatio22xBuilt-inExtender2.0xRangeofFocalLength(withExtender)7.6~168mm15.2~336mm(2.0x)MaximumRelativeAperture(withExtender)1:1.8at7.6~114.1mm1:2.65at168mm1:3.6at15.2~228.2mm1:5.3at336mm(2.0x)AngularFieldofView(withExtender)4:3AspectRatio(8.8x6.6mm)60.1°x46.9°at7.6mm3.0°x2.25°at168mm32.3°x24.5°at15.2mm1.5°x1.13°at336mm(2.0x)16:9AspectRatio(9.6x5.4mm)64.6°x39.1°at7.6mm3.27°x1.84°at168mm35.1°x20.1°at15.2mm1.64°x0.92°at336mm(2.0x)MinimumObjectDistance(M.O.D.)0.85m(10mmwithMacro)ObjectDimensi***atM.O.D.(withExtender)4:3AspectRatio(8.8x6.6mm)92.5x69.4cmat7.6mm4.25x3.19cmat168mm46.3x34.7cmat15.26mm2.13x1.6cmat336mm(2.0x)16:9AspectRatio(9.6x5.4mm)100.6x56.6cmat7.6mm4.60x2.60cmat168mm50.3x28.4cmat15.2mm2.30x1.30cmat336mm(2.0x)MacroYesSize(WxHxL)164.7x112.1x221.5mmWeight(Approx)IRSEA1.81kg(4.00lbs)IASEA1.89kg(4.17kg)OperationalAccessoriesFullservo:SS-41-IASD/SS-41-DSemiservo:MS-210D)