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Tamron Autofocus 2x Teleconverter Lens for Nikon DSLR Cameras | 
| Brand: Tamron
Category: Photography
List Price: $248.95
Buy New: $149.95
You Save: $99.00 (40%)
Rating:  3 reviews
Color: Black
Media: Electronics
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 0.6
Dimensions (in): 2 x 2.6 x 1
MPN: AF20N-700
Model: AF20N-700
UPC: 725211207030
EAN: 0725211207030
ASIN: B0000ZJDXA
Shipping: Eligible for Super Saver Shipping
Availability: Usually ships in 24 hours
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| Features:
| • | Increases focal length from same camera position by 2x | | • | Powerful and creative options for your telephoto photography | | • | Fits easily between lens and camera body | | • | Includes carry case | | • | For use with Nikon Digital SLR cameras |
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| Editorial Reviews:
Product Description
Teleconverters, either 1.4X or 2X, are efficient tools to add focal length to the photographer's arsenal. However, universal-type teleconverters have certain limitations in performance when used with ultra-telephoto lenses of 200mm or longer as compensation of chromatic aberration alone becomes highly critical in this focal length range. The new PRO-series teleconverters are specifically designed and optimized for use with such ultra-telephoto lenses to deliver maximum resolution, contrast and color rendition without degrading any aspect of the master lens performance.The 1.4X teleconverter will increase the focal length of the master lens by 1.4X and make the lens one f-stop slower. The 2X doubles the focal length of the master lens and makes the lens two f-stops slower. In addition to increasing focal length, both teleconverters allow greater magnification in macro since the Minimum Object Distance (MOD) of the master lens does not change when used with the teleconverters.The 1.4X teleconverter can be used with both AF and MF lenses. AF will be retained if the master lens is F/4.5 or faster. AF will be retained with the 2X teleconverter if the master lens is F/4.0 or faster.
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