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Tamron 1.4x SP AF Pro Teleconverter for Nikon AF-I, AF-D & AF-S - for Telephoto Lenses 90mm & Longer with Maximum Apertures of f/2.8 or Larger

B&H # TA14XPNAF MFR # AF14PN-700
Tamron 1.4x SP Pro Teleconverter for Nikon AF

Tamron 1.4x SP Pro Teleconverter for Nikon AF Front Cap Back Cap Lens Case

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The Tamron SP AF Pro teleconverter features improved optical construction, and is designed to be used with lenses that are f/2.8 and of focal lengths of 90mm or greater.

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.

This teleconverter is not recommended for lenses wider than 90mm, e.g. 50mm, 28-105mm, etc. However, full AF operation is still 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.

Note: When used with lenses with smaller maximum apertures (f/4 and f/5.6, for example) there will be little difference in image quality as compared with the standard Tamron teleconverters. When used with lenses wider than 90mm the SP teleconverters can actually compromise image quality.

Pro-series teleconverters are specifically designed and optimized for use with ultra-telephoto lenses (above 200mm) to deliver maximum resolution, contrast and color rendition without degrading any aspect of the master lens performance.
Improved optical design of 4-group/5-element for 1.4x and 4-group/7-element for 2x. Relative illumination is significantly improved resulting in better overall contrast and resolution across the entire image field.
Multi-coated elements result in crisper images.
Magnification 1.4x
Lens Elements/Groups 5/4
Length 0.7" (19mm)
Diameter 2.7" (68mm)
Weight 4.6 oz (132 g)
Tamron 1.4x SP AF Pro Teleconverter for Nikon AF-I, AF-D & AF-S - for Telephoto Lenses 90mm & Longer with Maximum Apertures of f/2.8 or Larger
  • Front & Rear Caps
  • Pouch
  • 1-Year Warranty
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