·
-EV
RANGE
OF
THE
CAMERA-continued-------
How
to
read
the
EV
chart
• Full-aperture
metering
Example: Lens maximum
aperture
fll.4
ASA/ISO
film
speed
100
Working
aperture
fl5.6
By
referring
to
the
fll.4
column
in
Section
A
and
the
EV
values
indicated
for
ASAIISO
100
in
Section
D,
you will
find
that
the
EV
range
for
an
fll.4lens
at
ASAIISO
100
is
I to
18.
Now, refer to
Section
B
and
single
out
the
fl5.6
indication
for
ASAIISO
100.
Go
diagonally
down
until
the
protruding
line
intersects
with
Section
C's
vertical
line for
the
shutter
speed
of
8 sec. (the F3 High-Eyepoint
camera's
slowest
shutter
speed).
From this point of inter-
section, follow
the
horizontal line that
leads
to Section D's
EV
value for ASAIISO 100,
and
you will obtain
an
EV
value
of
2. Start
again
from
the
£/5.6 indication for ASA/
ISO
100
in
Section
B,
and
go
down
diag
onally until
the
protruding
line intersects with
Section
C's
vertical line for
the
shutter
speed
of
112000
sec. (the F3 High-Eyepoint
camera's
fastest shutter
speed)
this time. Then follow
the
horizontal
line that
leads
to
Section
D's
EV
value for ASA/ISO 100,
and
you will
get
a
reading
of
EV
16.
This
means
that
an
£/stop
of
fl5.6 at ASAIISO
100
and
a shutter
speed
of
from
8 to
112000
sec
. has
an
effective
EV
range
of
2 to
16,
which
is well within
the
F3 High-Eyepoint
camera's
metering
range
of
EV
I to
EV
18.
The
area
encompassed
by
the
heavy
lines in Section C
demonstrates
a
metering
range
for full
aperture
method
using
an
fll.4
lens
and
ASAIISO
100
film.
34
• Stop-down
metering
Example:
ASAIISO
film
speed
100
Stopped
-down
aperture
fl8
The
procedure
is
the
same
. The fl8
column
in
Section
A
and
the
EV
values
indicated
for ASA/
ISO
100
in
Section
D will show you that
the
EV
range
for fl8 is 6 to 23. Refer
now to
Section
B
and
single
out fl8 at
ASA/ISO
100.
Go
diagonally
down until
the
protruding
line
intersects
with
Section
C's
vertical line for
the
shutter
speed
of 8
sec
.
From this point of intersection, follow
the
horizontal
line
that
leads
to
Section
D's
EV
value
for
ASAIISO
100,
and
you will
obtain
an
EV
reading
of
3. This
means
that
an
flstop of
fl8
at
ASA
/
ISO
100
and
a
shutter
speed
of 8
sec
.
give
an
EV
value
outside
the
metering
range.
To
find out
the
slowest
shutter
speed
usable,
follow
the
fl8
indication
for
ASAIISO
100
in
Section
B
diagonally
down until it
intersects
the
horizontal line in
Section
C
that
leads
to
Section
D's
EV
value
of 6 for ASA/
ISO
100,
and
you will
find
that
the
slowest shutter
speed
usable
is 1 sec. In
other
words, at fl8
and
ASAIISO
100,
the
available
shutter
speed
range
t
ha
t
is
within
the
metering
range
is from 1 to
112000
sec.,
which
has
an
effective
EV
range
of 6 to
17
(i
ndi
cated
by
the
broken
line in
Section
C)-well
within
the
metering
range.
In
pra
ctice,
you will find that it is
generally
the
high
end
and
the low
end
which
require
a
careful
chec
k.
T
he
EV
range
of
the Nikon
F3
High-Eyepoint
camera
encompasses
most
li
ghting
situations,
and
it is only
under
dim-light
or
extra-bright
picture
-taki
ng
situations that you
need
pay
any
special
attention.
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