Overview

The Sony 1.4x Teleconverter (2016) is praised for maintaining image quality with minimal sharpness and contrast degradation, often described as having no discernible quality loss. Autofocus is slightly slower than a bare lens, but bird-eye AF remains effective. Build quality is solid, and it works well with lenses like the 100-400mm and 200-600mm. It suits wildlife and sports photographers needing extra reach without significant IQ compromise, especially on high-resolution bodies.