Overview

The Sony 2x Teleconverter (2016) dramatically extends reach but reduces autofocus speed and accuracy, especially in dim light, due to the loss of light. Optical quality degrades sharpness and contrast, multiplying lens aberrations. Build is compact and compatible with select Sony FE lenses, retaining OSS and basic camera functions. It suits photographers needing extreme focal lengths in good light, particularly with fast lenses and high-end bodies like the Sony A9.