Sony FE 2x Teleconverter (SEL20TC)

 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. Sony FE 2x Teleconverter Specs Mount Sony E Magnification 2x Optical Design 8 Elements in 5 Groups Light Loss 2 Stop Length 1.68" / 42.7 mm Diameter 2.50" / 63.5 mm Weight 7.3 oz / 207 g   Package Content: Sony FE 2x Teleconverter Front and Rear Lens Caps Case