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F NUMBER
\ˈɛf nˈʌmbə], \ˈɛf nˈʌmbə], \ˈɛ_f n_ˈʌ_m_b_ə]\
Definitions of F NUMBER
2006 - WordNet 3.0
2011 - English Dictionary Database
Sort: Oldest first
the
ratio
of
the
focal
length
to
the
diameter
of
a
(
camera
)
lens
system
2006
- WordNet 3.0
By Princeton University
the
ratio
of
the
focal
length
to
the
diameter
of
a
(
camera
)
lens
system
2011
- English Dictionary Database
By DataStellar Co., Ltd
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