Sigma
Sigma 879101 1.4X Teleconverter Canon EF Bundle
★★★★★
12 Inchf/8
Extend Your Reach with Superior Image Quality The Sigma TC-1401 1.4x Teleconverter is designed to increase the focal length of your Canon EF-mount lenses while maintaining exceptional image quality. Optimized for Sigma's Global Vision line, this teleconverter offers full communication between th...
$339.99*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Extend Your Reach with Superior Image Quality
The Sigma TC-1401 1.4x Teleconverter is designed to increase the focal length of your Canon EF-mount lenses while maintaining exceptional image quality. Optimized for Sigma's Global Vision line, this teleconverter offers full communication between the lens and camera, allowing for autofocus operation and reducing chromatic aberrations.
Key Features:
- 1.4x increase in focal length for Canon EF-mount lenses
- Optimized for Sigma's Global Vision line
- Full communication between lens and camera
- Autofocus operation up to f/8
- Special Low Dispersion (SLD) element for reducing chromatic aberrations
- Dust and splashproof construction for added protection
Specifications:
- Brand: Sigma
- Model: 879101
- Magnification: 1.4x
- Lens Mount: Canon EF
- Optical Elements: Special Low Dispersion (SLD) element
- Weather Resistance: Dust and splashproof
Key Features
Bundle Includes: 1 x Sigma TC-1401 1.4x Teleconverter for Canon EF, 1 x Pro Sling Backpack, 1 x SanDisk 64GB Ultra SDXC Memory Card, 1 x Memory Card Reader, 1 x Deluxe Cleaning Set, 1 x 12 Inch Flexible Tripod, 1 x Memory Card Wallet, 1 x Wireless Remote Shutter Release, 1 x Lens Cap Keeper
Canon EF Teleconverter
1.4x Magnification Factor
Communication between Lens & Camera
AF Operates at up to f/8
Specifications
Model
TC-1401
Magnification Factor
1.4x
Mount Compatibility
Canon EF
Autofocus Support
Up to f/8
Included Accessory
Pro Sling Backpack
Included Memory Card
SanDisk 64GB Ultra SDXC
Pros & Cons
👍 Pros
- Increases the focal length of a Canon EF lens by a 1.4x magnification factor, extending reach for distant subjects.
- Maintains communication between the lens and the camera, allowing for continued autofocus and exposure control.
- AF operation is supported up to f/8, which is beneficial for photographers using lenses with smaller maximum apertures.
- This teleconverter is compatible with Canon EF mount lenses, offering a specific application for Canon users.
- The bundle includes essential accessories like a SanDisk 64GB SDXC Memory Card and a Pro Sling Backpack, adding value.
👎 Cons
- The 1.4x magnification factor will reduce the effective aperture of the lens by one stop, requiring higher ISO or slower shutter speeds.
- Autofocus performance may be affected at f/8, potentially resulting in slower or less reliable focusing in some situations.
- This teleconverter is specifically for Canon EF mount lenses, limiting its use with other camera systems.
- Adding a teleconverter can sometimes introduce a slight reduction in image quality or sharpness compared to the bare lens.
- The bundle includes several generic accessories that may already be owned by some photographers.
Frequently Asked Questions
What is the magnification factor of this Sigma teleconverter?
This Sigma TC-1401 teleconverter has a 1.4x magnification factor, extending the focal length of the attached lens.
Which camera mount is this teleconverter compatible with?
This teleconverter is specifically designed for Canon EF mount lenses.
Does autofocus still function when using this teleconverter?
Yes, communication between the lens and camera is maintained, and autofocus operates at up to f/8.
What accessories are included in this bundle?
The bundle includes a Pro Sling Backpack, a SanDisk 64GB Ultra SDXC Memory Card, a Memory Card Reader, a Deluxe Cleaning Set, a 12 Inch Flexible Tripod, a Memory Card Wallet, and a Wireless Remote Shutter Release.
Will this teleconverter reduce the amount of light reaching my camera's sensor?
Yes, a 1.4x teleconverter typically reduces the effective aperture of the lens by one stop, meaning less light reaches the sensor.
Can this teleconverter be used with lenses from other brands?
This teleconverter is specifically designed for Canon EF lenses and may not be compatible with other lens mounts.
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