15
14
Rear-Curtain Sync Flash
In “normal” flash synchronization, the flash fires at an early
stage of exposure (i.e., front-curtain sync). At slow shutter
speeds with a moving subject, this results in unnatural light
patterns.
For more natural lighting, use Rear-Curtain Sync. With
this method, the flash fires at a later stage of the exposure,
just before the rear, or second, shutter curtain starts to
close (i.e., rear-curtain sync), turning available light into a
stream of light that follows the flash-illuminated moving
subject. Rear-Curtain Sync is available with the F5,
F90X/N90s, F90-Series/N90, F70-Series/N70, F4-Series,
F-801/N8008, F-801s/N8008s, F-601/N6006 and F-601
M
/
N6000.
For more details, see “Rear-Curtain Sync Flash — For
Natural Light Flow,” page 105 and “Flash Sync Mode
Selector
W
vs.
q
,” page 139.
A slow shutter speed could create light flow from a moving subject.
Rear-Curtain Sync Flash catches him/her with natural-looking light
stream.
Y
F
R
F
R
X
Y
F
R
X
Y
X
2
2
1
Chapter
1
Main Features/Functions
The combination of high shutter-speed range and flash
sync capability provides you with more options for flash
photography in day-light conditions. It enables you to use a
wider aperture to blur the subject’s background (create a
shallow depth of field), light up shadowed areas in outdoor
photography, or even create light flow for fast moving sub-
jects.
FP high-speed sync flash is only available in the SB-26’s
Manual flash mode when using the F5, F90X/N90s and F90-
Series/N90. For details, see “FP High-Speed Sync Flash —
Flash Photography At Higher Shutter Speeds” on page 98.
X:
Time duration
Y: Shutter curtain movement
Ï
: Front-curtain movement
®
: Rear-curtain movement
⁄
: Film surface is exposed to
flash light throughout the
entire duration.
¤
: Film surface is exposed to
flash light for only part of
the time that the curtain
are open.
FP High-Speed
Sync Flash
Front-curtain sync flash
Rear-curtain sync flash
SB-26 sync flash
Light output
SB-26 (E) 03.1.14 7:16 PM Page 14
Содержание SB-26 - Speedlight
Страница 1: ...E Page 1 ...
Страница 4: ...Chapter 1 S D OFF SB 26 Introducing the SB 26 Autofocus Speedlight Page 6 ...
Страница 10: ...Chapter 2 Before Flash Shooting Page 18 ...