The Sigma 1.4x DG EX APO Tele Converter (also known as a tele-extender) will multiply the focal length of the existing lens by 1.4x, and will cut back the amount of light by one f/stop. For example, using a 1.4x teleconverter with a 300 mm lens will effectively increase the focal length to 420mm. A lens set to f/2.8 will now be f/4.
Note: Sigma APO Tele Converter 1.4x and 2x are dedicated teleconverter lenses. Due to the high optical quality of this teleconverter, this item will only fit and work with a select list of lenses.
|Dimensions||2.7 x 0.75" (68.5 X 19.5mm)|
|Weight||5 oz (143 g)|
This Sigma 77mm adapter ring allows the EM-140 DG Ringlight Flash to be mounted on...
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