Advertisement
Exposure
t erminology
• Shutter:
t he
l ength
o f
t ime
for
e ach
s ingle
e xposure
– each
f rame
o f
the
v ideo
i s
e xposed
f or
t his
a mount
o f
t ime
• Shutter
S peeds
a re
e xpressed
a s
a
f raction: 60
m eans
1 /60
second
• For
v ideo
t he
n ormal
s hutter
s peed
i s
t wice
t he
f rame
r ate,
e x:
1/60
of
a
s ec.
i s
u sed
f or
s hooting
v ideo
a t
2 9.97
f ps
th
• Going
b elow
t his
2 x
r ate
c auses
e xcessive
m otion
b lur
i n
t he
i mage
• The
h igher
t he
s hutter
s peed:
t he
l ess
m otion
b lur
i n
t he
i mage
• Very
h igh
s hutter
s peeds
c an
c ause
m otion
t o
l ook
l ike
c lockwork
a nd
may
a lso
c ause
d istortion
i n
f ast
m oving
o bjects
of
a
th
Advertisement
