产品详细描述：MainFeatures:Compact&lightweight!Improvedspecificationasstandardlens.X-Element&PowerOpticalSystemDigitalDriveEquippedwithCanon'soriginalRotaryEncoderDevice.LensJ17ex7.7BIRSE/IASEZoomRatio17xBuilt-inExtender2.0xRangeofFocalLength(withExtender)7.7~131mm15.4~262mm(2.0x)MaximumRelativeAperture(withExtender)1:1.8at7.7~102.5mm1:2.3at131mm1:3.6at15.4~205mm(2.0x)1:4.6at262mm(2.0x)AngularFieldofView(withExtender)4:3AspectRatio(8.8x6.6mm)59.5°x46.4°at7.7mm3.85°x2.89°at131mm31.9°x24.2°at15.4mm(2.0x)1.92°x1.44°at262mm(2.0x)16:9AspectRatio(9.6x5.4mm)63.9°x38.6°at7.7mm4.20°x2.36°at131mm34.6°x19.9°at15.4mm(2.0x)2.10°x1.18°at262mm(2.0x)MinimumObjectDistance(M.O.D)0.6m(10mmwithMacro)ObjectDimensi***atM.O.D.(withExtender)4:3AspectRatio(8.8x6.6mm)63.1x47.3cmat7.7mm3.8x2.9cmat131mm31.6x23.7at15.4mm(2.0x)1.9x1.5cmat262mm(2.0x)16:9AspectRatio(9.6x4mm)68.5x38.5cmat7.7mm4.2x2.4cmat131mm34.3x19.3cmat15.4mm(2.0x)2.1x1.2cmat262mm(2.0x)MacroYesSize(WxHxL)163.9x106.3x197.4mmWeight(Approx.)1.47kg(3.24lbs)1.57kg(3.46lbs)OperationalAccessoriesFullservo:SS-41-IASD/SS-41-DSemiservo:MS-210D)