Viltrox C-AF II AF 2.0X EF-Mount Teleconverter for Canon EF

The 2X Teleconverter doubles the focal length of Canon EF lenses, featuring 4 groups and 7 elements, and results in a 4x exposure enlargement, equivalent to a 2-stop reduction. It is compatible only with select Canon EF lenses and supports autofocus, delivering excellent image quality and fast focus speed.FeaturesFocal Length Extension: Doubles the focal length of Canon EF lenses, providing a 2x magnification.Autofocus Support: Retains the autofocus functionality of the original lens, ensuring quick and precise focusing.Optical Design: Features a seven-element, four-group optical design to maintain high sharpness and clarity. The elements are multi-coated to reduce flare and ghosting.Compatibility: Compatible with most Canon EF-mount lenses, particularly those with a focal length of 100mm or more.Exposure Factor: Results in a 4x exposure enlargement, equivalent to a 2-stop reduction, requiring adjustments in camera settings for optimal results.SpecificationMount typeCanon EF-Mount lensMagnification2 timesDepth of FieldHalf of the original lensMin stacking focal lengthEqual to the original lensConstitution of the lens7 glasses, 4 groupFocus modeAutofocusLens CoatingMulti-coatedExposure factorApprox.4 times (equal to 2 aperture )Diameter and lengthApprox.68x51mmWeightApprox 154gPackage Includes1 x Viltrox C-AF II AF 2.0X EF-Mount Teleconverter1 x Front Cap1 x Rear Cap