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doubler
(redirected from Teleconverter)

    Also found in: Acronyms, Encyclopedia, Wikipedia 0.01 sec.
dou·bler  (dblr)
n.
A device that doubles the frequency or voltage of an input signal.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.doubler - an electronic device that doubles the voltage or the frequency of an input signal
electronic device - a device that accomplishes its purpose electronically
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With a lens adapter, you can attach a teleconverter lens that increases the focal length by approximately 1.
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Users can also activate the Digital Teleconverter to add extra telephoto reach on all shots, similar to adding a teleconverter lens to the camera.
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One of the three major drawbacks of a 2X teleconverter is that the available light from the scene to the imager may be cut by as much as a full two f-stops, depending on the type and quality of the converter.
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