noun
a compound camera lens with a relatively high aperture
• Hypernyms: ↑camera lens, ↑optical lens
• Part Holonyms: ↑portrait camera
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noun : a compound photographic lens with a relatively high aperture and usually a means for softening definition especially in taking portraits
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Photog.
a lens of moderately long focal length that is used, esp. in portrait photography, to produce soft-focus images.
[1860-65]
Useful english dictionary. 2012.