Sony Alpha 100 Брошюра и технические характеристики - Страница 4
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Beautiful, sharp photos with no blurring
Super SteadyShot inside camera body reduces effects of camera shake
Super SteadyShot inside camera body prevents blur by compensating for camera shake
Image stabilisation system operates with all
system lenses
Compensation equivalent to 2-3.5 steps in shutter speed
Operating Tip
Turn on Super
SteadyShot using the
switch on the back of
the camera body.
Super SteadyShot
detects camera
shake and shifts the
position of the CCD
sensor to
compensate for
movement of the
camera body, thus
reducing image blur.
Indicator and warning icon in the
viewfinder provides immediate
indication of camera shake status.
Amount of camera shake is measured on a
scale of 1 to 5 indicator bars. Warning icon
also illuminates whenever the danger of
camera shake is high.
High danger
of camera
shake
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Photo data / 50mm
F1.4 / Handheld at
1/8sec. F2,
ISO 100 White
balance: Sunlight,
Anti-Shake: ON
The seated subject is
depicted clearly with
no blur. The 1/8 sec.
slow shutter speed
captures the movement
of the waves.
Anti-Shake switch
on back of camera.
Without Anti-Shake
the whole screen is
blurred due to
camera shake and
the photo is ruined.
Combats camera shake for sharper
handheld shots every time
Camera shake is one of the most common reasons for spoiled pictures
– and it's particularly noticeable with large prints. To reduce the number
of unnecessarily spoiled photos, the
100 features Super SteadyShot
– a sophisticated image stabilisation system that's built into the camera
body itself. Instead of depending on an anti-shake mechanism within
each lens, Super SteadyShot operates by compensating for small
movements of the CCD image sensor itself. This means that it works
with all compatible Sony
system lenses – and without the need for
expensive specialist optics that include built-in image stabilisation.
The actual compensation effect depends on the selected lens and
shooting conditions, but typically it's equivalent to between 2 and 3.5
steps in shutter speed. As well as reducing the blur caused by camera
shake, Super SteadyShot also permits handheld shooting in situations
Small
that would normally require a tripod or flash. An indicator in the bottom
camera
right hand corner of the viewfinder also provides real time indication of
shake
the amount of camera shake.
SIZE: 210mm x 297mm
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Effective with all
system lenses
Since it's built into the camera body
itself, Super SteadyShot compensates
for camera shake with all
interchangeable
system lenses.
The result? Shoot with greater
confidence using all compatible optics
including zooms, telephotos, macros and
wide-angles.
75-300mm F4.5-5.6
Anti-dust system for flawless photos
Banish spotting, speckling and
imperfections that can ruin even the best
shots when dust enters the camera body
as you're changing lenses. The
100
features an advanced anti-dust system
to minimise the effects of dust particles
entering the camera body when lenses
are exchanged. The CCD sensor's anti-
static coating acts as a barrier to dust,
while a CCD vibration function briefly
shakes the sensor every time the
100
is powered off to dislodge dust particles.
There's also a selectable menu function
that vibrates the sensor more strongly.
TECHNICAL POINT
Super SteadyShot allows shutter speeds 2–3.5 steps slower than normal
The fraction 'one over focal length' offers a useful
calculation of the minimum shutter speed (in
seconds) at which sharp images can be obtained
by handheld shooting. Unlike 35mm cameras, the
actual shooting angle of the
100 is equivalent to
the shooting angle of 1.5 times of the focal length
indicated on the lens. For example, a lens with a
focal length of 50mm would have an equivalent
focal length of 75mm, meaning that a minimum
shutter speed of approx. 1/80 sec. would be
required for sharp images. Since Super
SteadyShot provides compensation equivalent to 2
– 3.5 steps in shutter speed, compensation of 2
steps from 1/80 sec. would allow sharp images to
be taken at 1/20 sec., while 3 steps would allow a
minimum speed of only 1/10 sec.
Rough estimate for lowest speed possible without camera shake at 50mm focal length (75mm equivalent with
ON
Anti-Shake
1/100
1/80
OFF
PANTONE 1655
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Enjoy sharp, blur-free photos... even
Super SteadyShot allows handheld
with a telephoto or zoom lens at high
macro shooting with a reduced risk
magnification.
of camera shake.
50mm
F2.8 Macro
The dark faint blur is dirt
accumulated on the CCD
The
100 combats the effects of
dust entering the camera body when
lenses are exchanged.
OFF
Anti-Shake
1/80
sec.
1/20
sec.
1/10
sec.
Shooting with a 50mm F2.8 macro lens
(35mm equivalent of 75mm)
100) is around 1/80 sec.
Compensation can be expected
1
2
1/60
1/50
1/40
1/30
1/25
1/20
Risk of blurring becomes larger
SIZE: 210mm x 297mm
image sensor.
ON
1/80
sec.
1/20
sec.
1/10
sec.
3
1/15
1/13
1/10
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PANTONE 1655