Tamron 1.4X SP AF PRO

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Lens Specifications
Name Tamron SP AF 1.4X PRO
Image Circle 35mm
Type Teleconverter
Focal Length Multiplier 1.4X that of the master lens
Effective Reduction in Aperture 1 f-stop
Lens Construction 5 elements in 4 groups
Closest Focus Same as that of master lens
Magnification Ratio 1.4X that of master lens
Dimensions(Length x Diameter) 19.4mm x 68mm / 0.76 in. x 2.68 in.
Weight 132g / 4.7 oz
Notes Available AF Mounts: Canon, Minolta, Nikon
Typical Online Price US$170