Sony SEL20TC FE 2.0x Teleconverter Lens

The Sony FE 2.0x Teleconverter (SEL20TC) is built for photographers who need extended reach without the weight and expense of carrying additional long telephoto lenses. By doubling the focal length of compatible G Master lenses — the SEL70200GM becomes a 140-400mm, the SEL100400GM becomes a 200-800mm, and the SEL400F28GM becomes an 800mm — the teleconverter opens up dramatic framing possibilities for sports, wildlife, and event photography. The optical design uses 8 elements in 5 groups, including an aspherical element engineered to preserve the resolving power and contrast that G Master lenses are known for.

The trade-off for doubled reach is a 2-stop reduction in light, which shifts maximum apertures accordingly and can slow autofocus in challenging conditions. However, the teleconverter maintains full communication between lens and camera body, preserving autofocus, metering, and image stabilization functionality. Its dust- and moisture-resistant construction ensures it can keep up with the rugged use cases where long telephoto shooting is most common. For photographers already invested in compatible G Master glass, the SEL20TC provides a compact, high-quality way to significantly extend their working range.