Fill-flash
A method of flash photography which combines flash illumina-
tion and ambient
li
ght, but does not necessarily attempt to
balance the two types of illumination.
Flash synchronization
The timing
of
the flash
so
it
fires coincident with the operation
of the camera's shu
tt
er.
There are two types of synchronization:
Normal Sync which fires the flash
at
th
e start of the exposure,
and Rear Sync which fires the flash
at
the end of the exposure.
f-number
Number which indicates brightness of film plane image. In-
creasing/decreasing f-number
is
opening/stopping down lens
aperture. The f-number series
is
equivalent to
1.4,
2,
2
.S
,
4,
5.6,
S,
11
,
16
,
22,
32,
etc.
Changing one step to
th
e next larger
number
(i.e.,
from
111
1 to
1116)
decreases image brightness by
1/2; moving to nearest lower number doubles
th
e brightness.
Guide number
The number given to a flash bulb
or
electronic flash unit to
indicate
its
power. A guide number may be quoted
in
meters
or
feet,
and depends on
th
e speed of the film being used.
Guide numbers quoted assuming a relatively efficie
nt
re
fl
ector
surrounds the flash sour
ce,
e.g.,
an average-sized room.
150
film speed
The international standard for representing film sensitivity
(speed with which
it
reacts to light
).
The higher the num
ber,
the
greater the sensitivity, and vice versa. A film speed of ISO 200
is
twice
as
fast
as
ISO
100,
and half the speed of I
SO
400 film.
LCD
Liquid Crystal Display.
For
the N6000, used on the panel on
top of camera body and
in
side viewfinder.
Manual flash
Flash outp
ut
is
fixed in manual flash mode, while flash output
power vari
es
according to
se
lected aperture
in
auto flash
mode. Some Speed
li
ghts including
SB
-20 and SB-24 provide
selectable manual output
(fu
ll
, 1/2, 1/
4,
1/S,
1
/16,
etc.) and some
provide full output only.
Matrix metering system
An
advanced camera
li
g
ht
metering system using a
mUlti
-
segment sensor and computer; available
in
Nikon S
LR
models
F-601
/N6006, F-601M/N6000,
F4
and
F-S01/NSOOS.
A basic
versin
is
used with the Nikon F401/N4004 and F401s/N4004s
models. Matrix metering
is
an exc
lu
sive Nikon feature.
Non-TTL auto flash
A sensor measures illumination without viewing through
camera's
lens.
5LR
Single Lens Reflex. A type
of
camera in which you look
through the camera's lens as you view through the camera
finder. Other camera functions, such
as
light metering and
flash contro
l,
al
so
operate through the camera's l
ens.
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