产品详细描述：MainFeatures:Widestlens***ailableSurpassing100°indiagonalFiltersize127mmDigitalDriveUnitCompact&highqualitybyX-Element&PowerOpticalSystemEquippedwithCanon'soriginalRotaryEncoderDevice.LensJ11ex4.5BIRSE/IASEZoomRatio11xBuilt-inExtender2.0xRangeofFocalLength(withExtender)4.5~50mm9~100mm(2.0x)MaximumRelativeAperture(withextender)1:1.8at4.5~36mm1:2.35at50mm1:3.6at9~72mm(2.0x)1:4.7at100mm(2.0x)Angularfieldofview(withExtender)4:3AspectRatio(8.8x6.6mm)88.7°x72.5°at4.5mm10.1°x7.6°at50mm52.1°x40.3°at9mm(2.0x)5.0°x3.8°at100mm(2.0x)16:9AspectRatio(9.59x5.39mm)93.7°x61.9at4.5mm11.0°x6.2°at50mm56.1°x33.4°at9mm(2.0x)5.5°x3.1°at100mm(2.0x)MinimumObjectDistance(M.O.D.)0.3m(10mmwithMacro)ObjectDimensi***atM.O.D.(withExtender)4:3AspectRatio(8.8x6.6mm)67.9x50.9cmat4.5mm5.9x4.4cmat50mm34.0x25.5cmat9mm(2.0x)3.0x2.2cmat100mm(2.0x)16:9AspectRatio(9.59x5.39mm)74.4x41.9cmat4.5mm6.4x3.6cmat50mm37.2x20.9cmat9mm(2.0x)3.2x1.8cmat100mm(2.0x)MacroYesSize(WxHxL)168.2x110.6x237.7mmWeight1.83kg(4.03lbs)1.93kg(4.25lbs)OperationalAccessoriesFullservo:SS-41-IASD/SS-41-DSemiservo:MS-210D)