Sigma Tele Converter TC-2001, 2x Magnification, Canon EF-Mount, AF Support, Dust & Splashproof

The Sigma Tele Converter TC-2001, Canon EF mount, provides a 2.0× focal length multiplier that lets photographers extend the reach of compatible lenses without swapping glass. Engineered with two SLD elements and a durable, dust and splash-proof construction, the TC-2001 preserves image quality while adding significant magnification for wildlife, sports, and travel work.

Problem Overview

Photographers need more reach, but large telephoto lenses are costly, heavy, and hard to travel with. Teleconverters must extend focal length while preserving autofocus, exposure data, and image quality. The TC-2001 addresses these constraints for compatible Sigma Global Vision and supported Canon EF lenses, while caution notes about AF performance on some combos are documented.

• Need for extended focal length without extra large lenses.
• Preserving sharpness and color with added magnification.
• Reliability outdoors, including dust and splash resistance.

Solution Overview

The TC-2001 solves reach limitations by doubling focal length with minimal weight penalty, using two SLD glass elements to control chromatic aberration, and a dust and splash-proof design for reliable outdoor use. It supports metadata pass-through and AF on compatible systems, enabling photographers to extend their reach while retaining workflow efficiency.

Benefits

• Extended Reach: Doubles your lens focal length, enabling tighter framing at distance.
• Preserved Image Quality: SLD elements reduce chromatic aberration and maintain sharpness.
• Durable Field Use: Dust and splash-proof body withstands harsher shooting conditions.
• Workflow Friendly: Exposure and EXIF data pass through to your camera body.

Applications 

• Wildlife photography, distant animal subjects.
• Sports and outdoor events where moving closer is not possible.
• Travel and aviation photography for distant subjects.

Why Choose this Teleconverter

• The TC-2001 is engineered with SLD glass and Sigma quality control to deliver reliable optical performance when you need extra reach, while remaining compact and weather resistant. Official compatibility charts and notes on AF behavior are provided by Sigma.