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Sigma 2x EX DG APO Teleconverter 35mm Converters

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Product Description

The Sigma 2x EX DG APO Tele Converter will multiply the focal length of the existing lens by 2x, and will cut back the amount of light by 2 f/stops. For example, using a 2x teleconverter with a 300 mm lens will effectively increase the focal length to 600mm. A lens set to f/2.8 will now be f/5.6.



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