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lN DETAll-continued
How to read the EV Chart
Section A of the chart shows the usable EV range depending
on the lens' maximum aperture in full-aperture metering, while
it also indicates the usable EV range for aperture settings in
stop-down metering. Section D shows the value for the ASA/lSO
film speeds, Section B the aperture settings for various film
speeds, and Section C the shutter speeds. In practice, you will
find that it is generally the high end and the low end of the meter-
ing range which require a careful check. The EV range of the
Nikon FE2 encompasses most lighting situations, and it is only
under very dim or very bright picture-taking situations that you
need pay any special attention.
I Full -aperture metering
Use the Nikkor 50mm f/1.4 lens and a film speed of ASA/lSO
100 as an example. By referring to the f/.1.4 column in Section
A and the EV value indicated for ASA/lSO 1OO in Section D, you
will f ind that the FE2's EV range in this case is 1 to "lB.
lf the lens is set at f/5.6, refer to Section B and single out the
f/5.6 indication for ASA/lSO 1OO. Go diagonally down until the
protruding line intersects with Section C's vertical line for a
shulter speed of B sec. (tne FEz's slowest shutter speed). From
this point of intersection, follow the horizontal line that leads to
Section D's EV value for ASA/ISO 100, and you will obtain an
EV value of 2. Start again f rom the f/5.6 indication for ASA/lSO
100 in Section B, and go down diagonally until the protruding
line intersects with Section C's vertical line for a shutter speed
of 1/4000 sec. (the FE2's fastest shutter speed)this time. Then
follow the horrzontal line that leads to Section D's EV value for
ASA/ISO 100, and you will get a reading of EV 17. This means
that at an f/stop of f/5.6 at ASA/lSO 100 and at shutter speeds
3O
from 8 to 1/4000 sec., the effective metering range is EV 2 to
17, which is well within the FE2's metering range of EV 1 to
E V 1 8 .
I Stop-down
metering
For stop-down metering, Section A indicates the usable EV
range for various aperture settings. For example, if the lens is
stopped down to f/B at ASA/lSO 100, refer to the f/B column in
Section A and the EVvalues indicated for ASA/lSO 100 in Sec-
tion D, and you will find that the EV range for f/B is EV 6 to 23.
Now single out f/B at ASA/lSO 100 in Section B. Go diagonally
down until the protruding line intersects with Section C's vertical
line for the shutter speed of B sec. From this point of inter-
section, follow the horizontal line that leads to Section D's
EV value for ASA/lSO 100, and you will obtain an EV reading of
3. This means that an f/stop of f/8 at ASA/lSO
'100
and a shutter
speed of B sec. give an EV value outside the metering range.
To find out the slowest shutter speed usable, follow the f/B
indication for ASA/lSO 100 in Section B diagonally down until
it intersects the horizontal line in Section C that leads to Section
D's EV value of 3 for ASA/ISO 100, and you will find that the
slowest shutter speed usable is 1 sec. In other words, at f/B at
ASA/lSO 100, the available shutter speed range is from
'1
to
1/4000 sec., which has an effective EV range from EV 6 to 18
(indicated by the broken line in Section C)-well within the
metering range.
These EV charts indicate the oerformance of the FE2 under
normal temperatures and give the usable ranges for all shutter
speed/f i lm speed combinations.
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