Fotodiox, Inc. USA

Fotodiox Pro Autofocus 2x Teleconverter - AF Doubler x2.0 for Canon EOS EF Lenses and EF / EFs Cameras (Fits Full Frame)

Fotodiox Pro Autofocus 2x Teleconverter - AF Doubler x2.0 for Canon EOS EF - Main image
Fotodiox Pro Autofocus 2x Teleconverter - AF Doubler x2.0 for Canon EOS EF - View 2Fotodiox Pro Autofocus 2x Teleconverter - AF Doubler x2.0 for Canon EOS EF - View 3Fotodiox Pro Autofocus 2x Teleconverter - AF Doubler x2.0 for Canon EOS EF - View 4Fotodiox Pro Autofocus 2x Teleconverter - AF Doubler x2.0 for Canon EOS EF - View 5Fotodiox Pro Autofocus 2x Teleconverter - AF Doubler x2.0 for Canon EOS EF - View 6
$72.44 $114.99 In stock

Category: Lens Mount Adapter

  • Description
  • Specs
  • Compatibility
  • Notes

Product Highlights:

  • • Doubles the focal length of a Canon EF lenses (2.0x Magnification Factor) (Will not fit all EFs lenses due to long rear element length)
  • • Communication between lens & camera enables auto focus, auto iris & image stabilization
  • • Lens construction features 4 elements in 3 groups for sharp images
  • • A maximum aperture of f/4 or greater is required in order to fully utilize the autofocus capabilities.
  • • Limited 2-Year Manufacturer Warranty

    • The Fotodiox 2x Teleconverter for Canon cameras is a precision optical component designed to expand your photographic capabilities. This premium quality 2x teleconverter, effectively doubles the focal length of the lens it's used with and maintains the resolution and contrast of any fine optic.

    The teleconverter will multiply the focal length of the existing lens by 2x, and will cut back the amount of light by 2 f/stops. For example, using a 2x teleconverter with a 300 mm lens will effectively increase the focal length to 600 mm and a lens set to f/2.8 will now be f/5.6.

    A maximum aperture of f/4 or greater is required in order to fully utilize the autofocus capabilities. Please be aware that AF will work properly only if there is enough light and contrast on the subject to activate the camera's AF sensors. Manual focusing is recommended when using lenses with a smaller open f-stop value than those given above.

    A teleconverter is a portable, high-quality and versatile accessory that's well worth having in your camera bag!

    Back to Highlights

    Lens Mount Canon EOS (EF) Mount D/SLR Lenses
    Body Mount Canon EOS (EF / EFs) Mount D/SLR Cameras
    Teleconversion 2.0x Magnification Factor
    Product Dimensions 2.8 x 2.6 x 1.3 in (7 x 6.5 x 3.3 cm) @ 0.3 lb (4.4 oz)
    Shipping Dimensions 5 x 5 x 5 in (12.7 x 12.7 x 12.7 cm) @ 0.5 lb (8 oz)
    Manufacturer Fotodiox Inc.
    Warranty Limited 24-Months
  • • This teleconverter will not work with EF-S lenses
  • • AF will work properly only if there is enough light and contrast on the subject to activate the camera's AF sensors
  • • Manual focusing is recommended when using lenses with a smaller open f-stop value than those given above.
  • • To remove the adapter, move the release lever (circled in red) in the direction of the red arrow:

    • All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design.

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    United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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    Customer Reviews (4.8 / 5 · 5 reviews)

    Robert U. ★★★★★

    I was skeptical about autofocus speed with a 2x teleconverter, but on my 70-200 f/2.8 it locks on fast enough for birding. The image quality is surprisingly sharp even wide open, and it's nice that it fits my full-frame body without issues.

    Avery M. ★★★★★

    Putting this on my 70-200 f/2.8 for a motorsports shoot, and the autofocus is surprisingly snappy for a 2x converter. The 2.0x magnification factor is exactly what I needed to reach those tight corners without swapping lenses.

    Jason ★★★★★

    I was worried this teleconverter might slow down my autofocus, but it's been snappy on my 70-200mm f/2.8, and the 2x magnification is perfect for wildlife shots without breaking the bank.

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