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Sigma Tele Converter TC-1401, 1.4x Magnification, Nikon F-Mount, AF Support

SIGMA

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SKU

SIG879306

$389.00

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Key Features

1.4 Magnification, increases focal length by 40 percent for greater reach.
SLD Glass Element, reduces chromatic aberration and helps retain sharpness.
Dust and Splash Proof, rugged sealing for field and outdoor use.
AF Support up to f/8, maintains autofocus on supported lens and body combos.
Compact and Lightweight, adds minimal bulk, 190 grams only.
Full Electronic Communication, preserves EXIF, metering, and AF signals when supported.

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Sigma Tele Converter TC-1401, 1.4x Magnification, Nikon F-Mount, AF Support Overview

Description

The Sigma TELE CONVERTER TC-1401 is a compact 1.4x teleconverter designed to extend the focal length of compatible Sigma Global Vision and select Nikon F lenses without adding significant weight. With an optical design of 7 elements in 5 groups and at least one SLD element, the TC-1401 aims to preserve image quality while giving photographers 40 percent more reach.

Built with dust and splash proof construction and full electronic communication with supported lens and body combinations, the TC-1401 supports autofocus up to f/8 on compatible pairings and is ideal for wildlife, sports, birding, and travel shooters who need extra reach without buying a new super telephoto lens.

Applications

Wildlife Photography, extend telephoto reach for distant subjects.
Sports Photography, gain extra reach on outdoor fields and courts.
Birding and Travel, lightweight option for longer focal lengths without big lenses.

Compatibility

Refer to the official Sigma compatibility chart for the authoritative list of supported lenses and specific AF behavior. Commonly paired lenses include Sigma 150-600 series and Sigma 70-200 models, but compatibility and AF performance are lens and body dependent.

Example Compatible Lenses (sample):

Specifications

Optical Design	7 elements in 5 groups
Magnification Factor	1.4
Effective Aperture Reduction	Approximately 1 stop light loss
Dimensions	Diameter 69.8 mm, Length 25.0 mm
Weight	190 g (6.7 oz)
Mount	Nikon F-mount (this SKU)
Build	Dust and splash proof construction
Communication	Full electronic communication with lens and camera body when supported

Brand	Sigma
Manufacturer SKU	879955
UPC	085126879556

What’s included

1- Tele Converter TC-1401, Nikon F-Mount
1- Front Cap
1- Rear Cap
1- Soft Carrying Case

Compatibility

Sigma 150-600mm Contemporary

Sigma 150-600mm Sports

Sigma 70-200mm F2.8

Sigma 120-300mm

FAQ

Q1: What does the TC-1401 do?

A1: The TC-1401 multiplies a lens focal length by 1.4, giving 40 percent more reach while causing approximately a one stop reduction in effective aperture.

Q2: Will autofocus still work with the TC-1401?

A2: Autofocus is supported up to f/8 on compatible lens and camera body combinations. Check Sigma's compatibility PDF for exact pairings.

Q3: Does the TC-1401 affect image quality?

A3: The TC-1401 uses SLD glass and careful optical design to minimize chromatic aberration and softness, but image quality impact depends on the lens paired with the teleconverter.

Q4: Is the TC-1401 weather sealed?

A4: Yes, the TC-1401 features dust and splash proof construction for increased durability in field conditions.

Q5: Which lenses are recommended with the TC-1401?

A5: Sigma recommends pairing the TC-1401 with Sigma Global Vision telephoto lenses listed in their compatibility chart, for example 150-600 and 70-200 series; always verify the official list.

Q6: How much weight does the TC-1401 add?

A6: The TC-1401 is lightweight, adding approximately 190 grams to your setup, making it a portable reach extension option.

Q7: Can I use the TC-1401 on third-party lenses?

A7: Third-party lens performance varies, and Sigma's compatibility PDF focuses on supported Sigma and select OEM lenses. Using it on unsupported lenses may result in loss of AF or degraded performance.

Q8: How much light is lost when using the TC-1401?

A8: Expect roughly a one stop reduction in effective aperture, so adjust exposure or ISO accordingly.

Q9: Does the TC-1401 preserve EXIF and image stabilization?

A9: The TC-1401 maintains electronic communication so EXIF data and lens body signals are preserved when supported; image stabilization behavior depends on the lens and camera body.

Q10: Where can I find the official compatibility list and manual?

A10: The definitive compatibility list and user manual are published by Sigma on their support pages. Consult those documents for mount specific and firmware dependent compatibility details.