Extending the effective focal length of select Sony E-mount telephoto lenses, the FE 2x Teleconverter increases the lens's magnification by 2x for a narrower field of view. The dedicated design maintains full communication between the lens and E-mount mirrorless cameras, including auto-exposure metering, autofocus, and Optical SteadyShot image stabilization. Additionally, this teleconverter also features a dust- and moisture-resistant construction, matching the lens, to benefit working in harsh environmental conditions. Manufacturer Included Items: Sony FE 2x Teleconverter Front and Rear Lens Caps Case Bundle Items Include: 1 x Sony FE 2.0x Teleconverter 1 x Lens Cap Keeper 1 x Cleaning Kit