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Speedbooster
Meaning
Noun
●
In Photography:
A
secondary
lens
mounted
between the
camera
and a
photographic
lens
so as to
reduce the
central
part of an
image
obtained
by the
objective
lens
while
concentrating
the
light
rays
on a
smaller
area.
●
Something that
boosts
speed.
Sourced from
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