Tamron teleconverters provide powerful and creative options for your telephoto photography. A Tamron teleconverter mounted between the lens and the camera body increases the focal length of the host lens, providing greater magnification from the same camera position. Tamron's teleconverters are compatible with most (autofocus) and auto-exposure cameras.
Tamron AF 1.4X Pro Teleconverter Specifications
Model: 020 series
Lens Construction (Groups/Elements): 4/4
Coating: Multiple Layer
Maximum Magnification: 1.4X the mag ratio of original lens