Tamron tele-converters provide powerful and creative options for your telephoto photography. Simply fit a Tamron tele-converter between the lens and the camera body to increase the focal length of your lens quickly and ecconomically. Tamron's AF tele-converters are compatible with most AF (auto-focus) and auto-exposure cameras. Please note that lenses with smaller aperture (F number higher than F2.8 - ex 3.5, 4, 5.6, etc) may not autofocus properly with this teleconverter and certain bodies.
|Lens Construction (Groups/Elements)||4/7|
|Exposure Magnification|| Approx. 4 times |
|Depth of Field||1/2 of prime lens|
|Maximum Barrel Diameter||68.5mm|