mirror lens
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noun
photog a lens of long focal length in which some of the lens elements are replaced by mirrors in order to shorten its overall length and reduce its weight
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Words nearby mirror lens
mirror ball, mirror canon, mirror carp, mirror finish, mirror image, mirror lens, mirror plant, mirror site, mirror symmetry, mirror-writing, mirth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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