Tamron SP 2X Pro Teleconverter for Nikon AF-D

Tamron SP 2X Pro Teleconverter for Nikon AF-D

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 2x teleconverter (also known as a tele-extender) 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. A lens set to f/2.8 will now be f/5.6. 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.&ref=Become
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User Reviews for Tamron SP 2X Pro Teleconverter for Nikon AF-D

Overall Rating: Star FullStar FullStar FullStar HalfStar Empty ( 3 reviews )
  1. Star FullStar EmptyStar EmptyStar EmptyStar Empty Posted: 04-02-2009

    This teleconverter was given to me as a gift, and I eagerly looked forward to using it. However, when I connected it between my Nikon D300 and my Nikon 70-200 f/2.8 lens, absolutely nothing happened. No auto-focus. So I disconnected it and then reconnected and still no autofocus ability. I then confirmed all settings and it still would not work. So I went to manual mode, and was able to zoom in and out by hand, but when I went to take a picture, the picture was solid black--no picture came through. So if you are considering this product for a Nikon D300, you may want to pass.

  2. Star FullStar FullStar FullStar FullStar Empty ( 1 of 1 found this review helpful ) Posted: 05-25-2007

    So far, the only negative thing I have to say about the Teleconverter is that when I zoom out to 300mm, I cannot use autofocus. This probably won't be for your rapid shots. I enjoy seeing a larger or closer version of my shot without having to buy a much larger lens for my Nikon.

  3. Star FullStar FullStar FullStar FullStar Full ( 1 of 1 found this review helpful ) Posted: 05-15-2007

    I'm using this 2X teleconverter with a Nikon D-50 and a Tammron 100-400mm lens. Its been fantastic. I'm hanholding the Camera mainly for Birding Phoptography and could not be more pleased.

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Product Specs for Tamron SP 2X Pro Teleconverter for Nikon AF-D

Feature: Increases focal length from same camera position by 2x Superior performance for unsurpassed image quality and ease of use Fits easily between lens and camera body Includes carry case For use with Nikon Digital SLR cameras
Category: Electronics
Brand: Tamron
Label: Tamron
Model: AF20PN-700
Product Group: Photography
Publisher: Tamron
Weight: 0.6 lb.
Length: 2 in.

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