Canon 2x EF Extender II (Teleconverter)

BH #RBC2XEF2 • MFR #6846A013AA
Key Features
  • Refurbished products have a 90-Day B&H Refurbished Warranty
The Canon EF 2x II Extender is a high-quality teleconverter that preserves the image quality of the lens it's mounted to and multiplies its focal length by 2x. When combined with pro level EOS cameras & EF supertelephoto lenses with image stabilization, near imperviousness to weather extremes is achieved thanks to rubber gasket seals. Improved antireflective internal coatings also increase transmissivity & performance in backlit conditions.

The 2x extender (also known as a 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 300mm lens will effectively increase the focal length to 600mm. A lens set to f/2.8 will now be f/5.6. Teleconverters are best used with longer telephoto lenses and are not recommended for lenses wider than 50mm, e.g. 28-105mm (35mm format).

Note: This teleconverter will only fit and work with a select list of lenses. Please click here for a compatibility chart of all compatible lenses.

Note: Autofocus is possible with any EOS body if the lens has an f/2.8 or faster maximum aperture, and compatible Image Stabilization lenses maintain the IS feature when used with any current EOS camera.

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Canon EF 2X III Overview

The Canon EF 2x II Extender is a high-quality teleconverter that preserves the image quality of the lens it's mounted to and multiplies its focal length by 2x. When combined with pro level EOS cameras & EF supertelephoto lenses with image stabilization, near imperviousness to weather extremes is achieved thanks to rubber gasket seals. Improved antireflective internal coatings also increase transmissivity & performance in backlit conditions.

The 2x extender (also known as a 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 300mm lens will effectively increase the focal length to 600mm. A lens set to f/2.8 will now be f/5.6. Teleconverters are best used with longer telephoto lenses and are not recommended for lenses wider than 50mm, e.g. 28-105mm (35mm format).

Note: This teleconverter will only fit and work with a select list of lenses. Please click here for a compatibility chart of all compatible lenses.

Note: Autofocus is possible with any EOS body if the lens has an f/2.8 or faster maximum aperture, and compatible Image Stabilization lenses maintain the IS feature when used with any current EOS camera.

Preserves the image quality of the lens it's mounted to
Effective aperture is reduced by 2 f/stops

Canon EF 2X III Specs

Magnification2x
Lens Elements/Groups7/5
Length2.3" (58mm)
Diameter2.8" (72mm)
Weight9.3 oz (265g)
Packaging Info
Package Weight1.15 lb
Box Dimensions (LxWxH)5.4 x 3.7 x 3.6"
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