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Compact black teleconverter barrel with Sigma lens mount markings

SIGMA

SIGMA TC-2001 2x Tele-Converter AF for Sigma Mount Lenses camera accessory

SKU CH-SQ9X-0VSJG

A 2.0x tele-converter doubles the focal length of compatible Sigma mount lenses for wildlife and sports photography

  • Doubles focal length with 2.0x magnification for distant subjects
  • 10 elements in 5 groups maintain sharpness at full extension
  • Designed for Sigma mount lenses with reliable autofocus at F8
  • Splash and dust proof construction ensures durability in tough conditions
  • Lightweight 10.2oz build adds minimal bulk to your kit

Purpose & Audience

The SIGMA TC-2001 is a 2.0x tele-converter built for photographers who use Sigma mount lenses and need extra reach for wildlife or sports subjects. It doubles the focal length of compatible Global Vision lenses while retaining autofocus capability at F8.

Optical Capacity

Ten elements in five groups, including two SLD glass elements, suppress aberrations and preserve sharpness at the 2.0x magnification factor. The design covers large-diameter lenses, but light transmission drops by two stops so low-light work becomes difficult.

Build & Handling

A splash- and dust-proof barrel adds only 10.2oz to the kit, keeping balance manageable on long shoots. No electronic contacts beyond the Sigma mount interface are present, so the unit draws no power and runs silently.

Highlights

  • Doubles focal length with 2.0x magnification for distant subjects
  • 10 elements in 5 groups maintain sharpness at full extension
  • Designed for Sigma mount lenses with reliable autofocus at F8
  • Splash and dust proof construction ensures durability in tough conditions
  • Lightweight 10.2oz build adds minimal bulk to your kit

Specifications

No published specifications for this item yet.

Questions about this item

Will the 2.0x magnification still autofocus on my older Sigma lens?

The converter is built for Sigma mount lenses and supports effective autofocus at F8, so compatible older lenses will keep AF when stopped down to that aperture.

How can I check the 10-element optical path is aligned after fitting the converter?

Shoot a high-contrast target at the longest focal length; sharp centre and edge detail with no colour fringing confirms the 10 elements in 5 groups are correctly seated.

Does the box include a lens hood or do I need to buy one separately?

The supplied items are the converter, front and rear caps, and a case; a dedicated hood is not included and must be purchased separately if required.

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