Tamron 1.4x AF Teleconverter for Canon EF Mount

Tamron 1.4x AF Teleconverter for Canon EF Mount
7 Days
Retail: $149.00
Reserve +
  • Expected: December 21
  • Product Details

Product Features

The 1.4x teleconverter (also known as a tele-extender) will multiply the focal length of the existing lens by 1.4x, and will cut back the amount of light by one f/stop. For example, using a 1.4x teleconverter with a 300mm lens will effectively increase the focal length to 420mm. A lens set to f/2.8 will now be f/4. Teleconverters are not recommended for lenses wider than 50mm, e.g. 28-105mm. However, full AF operation is only possible with lenses with open aperture of f/2.8 or brighter. 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 smaller open f-stop value than those given above.

The 1.4X teleconverter can be used with both AF and MF lenses. AF will be retained if the master lens is F/2.8 or faster.


Technical Details

  • Lens Construction: 4 groups/ 4 elements
  • Coating Multiple layer
  • Maximum Magnification 2 X the magnification ratio of original lens
  • Length 1.0in. (26mm)
  • Maximum Barrel Diameter Ø2.6in. (66.7mm)
  • Mount: Canon EF

Compatible Lenses:

  1. EF 135mm f/2 L
  2. EF 70-200 f/2.8L
  3. EF 70-200 f/2.8L IS (MKI and MKII)
  4. EF 70-200 f/4.0L
  5. EF 70-200 f/4.0L IS
  6. EF 100-400 f/4.5-5.6L IS
  7. EF 200mm f/2.8 L II
  8. EF 200mm f/2 L IS
  9. EF 200mm f/1.8 L
  10. EF 300mm f/4 L
  11. EF 300mm f/2.8 L IS
  12. EF 400mm f/2.8 L IS
  13. EF 400mm f/4 DO IS
  14. EF 400mm f/2.8 L (non-IS)
  15. EF 500mm f/4 L IS
  16. EF 600mm f/4 L IS