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Sigma TC-2001 2x Teleconverter for Canon EF

  • mfr: 870101
  • SKU: 870101
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Product highlights

  • Canon EF Teleconverter
  • 2x magnification factor
  • Communication between lens and camera
  • AF operates at up to f/8
  • Two Special Low Dispersion elements
  • Dust and splashproof construction
  • Compatible with Select Sigma lenses
  • Works with large-diameter lenses

Sigma TC-2001 2x Teleconverter for Canon EF

The TC-2001 from Sigma is a 2x Teleconverter specifically designed for Canon EF mounts. Designed with 2 Special Low Dispersion glass elements, you will experience superb image quality. This teleconverter increases the focal length by 2x for select Global Vision Sigma lenses. It employs full communication between the lens and camera, allowing the autofocus to operate at up to f/8. Sigma constructed this teleconverter to be dust and splash proof so you can shoot confidently in a variety of challenging conditions. When attached, the 2x conversion factor results in a light loss of approximately two stops. This teleconverter offers wide compatibility, even when working with large-diameter lenses. Get maximum AF and twice the standard reach, optimizing your compatible lens.

SLD Glass Elements

TC-2001 incorporates 2 SLD (Special Low Dispersion) glass elements. By minimizing chromatic aberration effectively, it has achieved very good optical performance, thus it is possible to maintain the optical quality of the original lens.

Compatible with Large Diameter Lenses

Its power distribution is designed for lenses of large diameter. Without affecting the lens performance, it offers stable image quality until corners. The rich peripheral brightness enables shooting quality images at every focal length.

Dust and Splash-Proof Construction

It is dust and splash-proof, and designed for higher durability. SIGMA 150-600mm F5-6.3 GD OS HSM |Sports and other telephoto lenses are able to meet the demands that professional photographers would require in severe shooting conditions, such as in the rain.

AF is Effective up to f/8

When the Sigma Teleconverter is attached to cameras that are compatible with AF at F8, it is possible to shoot with AF.

Ease of Use

A rubber part is attached to where it mounts with the original lens, and it prevents the devices from scratching each other. It has the same materials and finishing for integrated design as the lenses from the new product lines.


Lens Mount Canon EOS Mount
Conversion Factor 2.0x
Configuration Core
Color Black


Customer Questions
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You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

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All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

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Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

Sigma TC-2001 2x Teleconverter for Canon EF  (only for SGV Lenses)

Sigma TC-2001 2x Teleconverter for Canon EF SKU: 870101

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