Extending the effective focal length of the Sony FE 70-200mm f/2.8 GM OSS lens, the FE 2.0x Teleconverter renders this telephoto zoom as a 140-400mm f/5.6 lens. 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.