Nikon SB-25, Instruction Manual

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Chapter
4
Exposure Compensation with Camera’s Dial — To Make Background Lighter or Darker
Some camera models include an EV compensation control.
Using this control you can modify the exposure to make
your picture lighter or darker.
To make the picture lighter, use “+” compensation. For
darker pictures use “–” compensation. How much compen-
sation you choose depends on how much you want to mod-
ify the resulting picture.
Since the shooting distance range for TTL Auto Flash
varies with the amount of exposure compensation, make
sure your subject falls within the range before shooting.
You can use the LCD panel for confirmation by altering
the ISO film speed value and observing changes of distance
indicator bars
.
Hints and Notes
• First, make necessary exposure compensation on the
camera.
Then, use the chart on the next page, “Assumed ISO film
speeds,” to set an assumed ISO film speed in the SB-25’s
LCD panel that corresponds to the actual ISO film speed
in use. See “Setting Aperture Values (Manual
Adjustment),” pages 28 and 29.
• For TTL Auto Flash, be sure the substituted film speed
falls within the range of “usable films” that ensure correct
exposure with your camera.
• Confirm whether subject is within the range shown by the
shooting distance indicator bars .
If not, make necessary adjustments; move farther or closer.
Flash exposure compensation
Additional compensation for the subject can be made
by using flash exposure compensation control.
For further information, see “Flash Exposure
Compensation — To Make Flash-Illuminated Subject
Lighter or Darker,” pages 106 and 107.
Film speed in
use
25
50
100
200
400
800/1000
Exposure compensation value
+3 +2 +1 0 –1 –2 –3 –4 –5
— — — 25 50 100 200 400 800
— — 25 50 100 200 400 800 —
— 25 50 100 200 400 800 — —
25 50 100 200 400 800 — — —
50 100 200 400 800 — — — —
100 200 400 800 — — — — —
Assumed ISO film speeds
F90-Series/N90 ✗ F-501/N2020 ✗ Nikonos V ✗
F4-Series ✗ F-301/N2000 ✗ F3-Series ✗
F-801/N8008
✗
F-401/N4004 F2-Series
✗
F-801s/N8008s ✗ F-401s/N4004s FM2
F-601
M
/N6000 ✗ FE2 ✗
F-401x/N5005
✗
FG
✗
F-601/N6006
✗
FA
✗
FG-20
✗
APPLICABLE NIKON SLR MODELS
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