Sony 2X Teleconverter
The Sony SEL20TC is a lens accessory from Sony — known for its 2x Focal Length Extension and Autofocus Retention. Check GearFocus for current availability, with buyer protection on every purchase.
Sony 2X Teleconverter
Get notified when one lists.
We'll text or email you the moment a Sony 2X Teleconverter is listed on GearFocus.
Have a Sony SEL20TC sitting in your bag?
You'd be the first listing for this model.
Serious buyers are already watching — list yours in minutes.
Available Now on GearFocus
Overview — Sony SEL20TC
Key Features — Sony SEL20TC
2x Focal Length Extension: Doubles the focal length of compatible Sony telephoto lenses, effectively extending reach for wildlife, sports, and birding without changing lenses.
Autofocus Retention: Maintains autofocus operation with compatible Sony lenses, so fast-moving subjects can still be tracked without switching to manual focus.
Sony E Mount: Purpose-built for Sony's mirrorless ecosystem, ensuring a direct, native connection with compatible Sony E mount telephoto lenses.
Full-Frame Coverage: Designed to cover full-frame sensors, making it suitable for use with Sony's high-resolution mirrorless bodies without vignetting.
Auto and Manual Focus: Supports both autofocus and manual focus modes, giving photographers flexibility depending on the shooting situation.
207g Compact Build: At 207g, the teleconverter adds relatively modest weight to a telephoto setup, keeping the overall kit manageable in the field.
Specifications — Sony SEL20TC
| Spec | Detail |
|---|---|
| Lens Format | Full Frame |
| Camera System | Mirrorless |
| Zoom Prime | Prime |
| Auto Focus | Yes |
| Focus Type | Auto, Manual |
| Focal Length Range | Telephoto |
| Image Stabilization | None |
| Weight unit | g |
| Weight value | 207 |
| Mount lens | Sony E |
| Compatible Mount | Sony E |
Description — Sony SEL20TC
The Sony 2X Teleconverter is designed for Sony E mount mirrorless cameras and provides telephoto focal length extension for compatible lenses. It supports full-frame coverage, making it well-suited for use with Sony's full-frame mirrorless bodies. Weighing just 207g, it adds relatively little bulk to a telephoto kit.
The teleconverter supports both Auto and Manual focus modes, with autofocus fully retained during use — an important consideration for fast-moving subjects in wildlife or sports scenarios. There is no image stabilization built into the unit, and no filter thread is present on the accessory. Classified as a prime optical configuration operating in the telephoto focal length range, this teleconverter is a straightforward choice for Sony E mount shooters looking to extend their telephoto reach while keeping autofocus functionality intact.
Pros — Sony SEL20TC
- ✓Supports autofocus (autoFocus: true), allowing AF to be retained with compatible lenses
- ✓Compatible with Sony E mount, purpose-built for Sony mirrorless systems
- ✓Full-frame coverage (lensFormat: Full Frame) suits high-resolution mirrorless bodies
Cons — Sony SEL20TC
- ✗No image stabilization built into the unit (imageStabilization: None)
- ✗No filter thread available on this accessory (filterThreadSize: null)
- ✗Compatibility is limited to Sony E mount lenses — not usable with other lens mounts
Videos — Sony SEL20TC
This makes the Sony 70-200 perfect for WILDLIFE Photography — Olle Nilsson