Sigma APO Teleconverter 1.4x EX DG
The Sigma 1.4x EX DG is a lens accessory from Sigma — known for its 1.4x Focal Length Extension and 1-Stop Light Reduction. Used copies start from $83.64 on GearFocus, with buyer protection on every purchase.
Sigma APO Teleconverter 1.4x EX DG
Used Sigma 1.4x EX DG Listings on GearFocus
Overview — Sigma 1.4x EX DG
Key Features — Sigma 1.4x EX DG
1.4x Focal Length Extension: Multiplies the focal length of a compatible host lens by 1.4x, increasing telephoto reach without the cost of a longer lens.
1-Stop Light Reduction: Reduces maximum aperture by one stop, which is less light loss than a 2x teleconverter and easier to manage in variable lighting conditions.
Autofocus Compatible: Retains autofocus operation with supported lenses, allowing AF-dependent shooting workflows such as wildlife and sports to continue uninterrupted.
Four Mount Options: Available in Sigma SA, Canon EF, Nikon F, and Sony A mounts, making it compatible with a wide range of DSLR systems.
Full-Frame Coverage: Designed to cover a full-frame image circle, suitable for use on both full-frame and APS-C DSLR bodies.
APO Optical Design: Apochromatic glass elements correct chromatic aberration, helping to maintain color accuracy and edge sharpness at extended focal lengths.
Specifications — Sigma 1.4x EX DG
| Spec | Detail |
|---|---|
| Lens Format | Full Frame |
| Camera System | DSLR |
| Zoom Prime | Prime |
| Auto Focus | Yes |
| Focus Type | Auto, Manual |
| Focal Length Range | Telephoto |
| Image Stabilization | None |
| Weight value | 190 |
| Weight unit | g |
| Mount lens | Sigma SA, Canon EF, Nikon F, Sony A |
| Compatible Mount | Canon EF, Nikon F, Sony A, Sigma SA |
Description — Sigma 1.4x EX DG
The Sigma APO Teleconverter 1.4x EX DG is a DSLR-compatible lens accessory designed to extend the reach of supported telephoto lenses. It offers full-frame format coverage and is available in four mount variants: Sigma SA, Canon EF, Nikon F, and Sony A, making it a versatile option across multiple DSLR platforms. The teleconverter supports both Auto and Manual focus modes, with autofocus capability retained for use with compatible lenses — an important consideration for fast-moving subjects.
Weighing just 190g, it is a lightweight addition that keeps overall kit weight manageable. The accessory falls within the telephoto focal length range category and is classified as a prime configuration. There is no image stabilization built in (stabilization: None), so photographers should ensure their host lens or camera body provides any required stabilization.
With its multi-mount compatibility and autofocus support, the Sigma APO Teleconverter 1.4x EX DG is a practical accessory for DSLR shooters looking to increase their telephoto reach.
Pros — Sigma 1.4x EX DG
- ✓Compatible with four mount systems: Sigma SA, Canon EF, Nikon F, and Sony A
- ✓Supports autofocus operation, allowing AF to be retained with compatible lenses
- ✓Full-frame format coverage suits photographers using full-frame DSLR bodies
Cons — Sigma 1.4x EX DG
- ✗No image stabilization included — reliance on host lens or body for any stabilization
- ✗Compatibility is limited to DSLR systems; no mirrorless mount options listed
- ✗No filter thread, so front-of-accessory filter use is not supported
Videos — Sigma 1.4x EX DG
Sigma 1.4 Teleconverter Review — Vincent Martinez Photography