Bosch PPP6 1 Series Especificações Página 6

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i-TTL balanced fill-flash
Just the right amount of light for well-balanced foreground
and background exposure
Incredibly useful in varied or unpredictable lighting, the
innovative i-TTL system delivers consistently accurate flash
exposures automatically. Whenever your Nikon digital SLR is
set to either 3D color matrix metering II
/
III or center-weighted
metering, your Speedlight automatically readies
i-TTL to deliver balanced fill-flash. In this mode, a
monitor pre-flash fires microseconds before the
actual flash, accurately informing the Speedlight
on the latest scene information. Even for difficult
scenes such as backlit subjects, the flash comes
through with well-balanced exposures across the
frame and avoids overexposing the subject.
10
11
Many features, unl imited possibilities
Auto FP high-speed sync
Shallow depth-of-field for portraits in bright conditions
When shooting a portrait under harsh lighting such as the
noonday sun, the lighting conditions may force you to use f/11
or an even smaller aperture, which may not render the portrait
you’re looking for. Auto FP high-speed sync lets you move past
your camera’s normal sync speed of around 1/200 or 1/250 second
to shoot at much faster shutter speeds — as high
as your camera is capable of — enabling the use
of larger apertures such as f/2.8 for a beautifully
shallow focal plane, which looks great in portraits.
High-speed sync also works when stopping action
at high noon.
Flash Value (FV) lock
Maintain flash exposure in constantly changing lighting
conditions
The FV lock helps you maintain the same flash value for correct
exposures during a sequence of photographs. This allows you
to zoom in on your subject, change the composition or adjust
the aperture, all without altering your intended exposure. The
pictures here were taken using FV lock. Notice
how the flash output value remains the same,
even when a highly reflective surface (of the train)
enters the frame. This way you can concentrate
on capturing your subject without worrying about
adjusting your subjects lighting.
Auto FP high-speed sync for shallow depth-of-field
© Kathy Wolfe
Flash output remains the same with FV lock activated
© Joe McNally
i-TTL balanced fill flash
© Joe McNally
Normal sync for deep depth-of-field
Rear-curtain sync
Create a sense of motion with intended blur
When using rear-curtain sync mode, a flash fires at the very
end of an exposure instead of at the beginning. When you are
shooting at 1/30 second or slower, the image sensor soaks up
the available light. Then right before the shutter closes, the flash
fires to illuminate the main subject. As the name Speedlight
implies, the flash fires very quickly, freezing the action of your
main subject. Apply this to a moving subject, and the effect is
eye-catching, giving the viewer a sense of movement through
the combination of sharp features and intended blur.
Rear-curtain sync to fire flash at the end of the exposure
© Joe McNally
Slow sync
Capture the ambient light with a slow shutter speed
When shooting a dimly lit scene with available light, a fast nor-
mal sync speed such as 1/250 second will expose your main
subject but cannot properly expose the surroundings. If you use
a shutter speed of 1/30 second or slower in any of the camera’s
exposure modes, the ambient illumination will be more naturally
balanced.
Slow sync
© Joe McNally
Normal sync
The same scene taken without flash
Speedlight and high ISO combination
Add a touch of quality light to your quantity of light
While many shooters praise the incredible power of Nikon’s high
ISO performance, it is worth noting the important difference
between quality of light and quantity of light. While a high ISO can
increase your shooting power in situations with a low quantity of
light, high ISO alone cannot improve the quality of light. This is a job
for Nikon Speedlights. A simple flash can open
up the shadows across a model’s skin and draw
our attention to her face as the photographer
intended. A Speedlight working together with
high ISO also allows you to illuminate faraway
subjects with straight or bounce flash.
Flash fill-in and high ISO (1600) used together
© Joe McNally
High ISO without using flash
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