Sony SLT-A57K - Manual (Page 5)

5
Class-leading release time lag
When you press the shutter button,
the 57 responds in 0.05 second — a
blazing speed that rivals professional
cameras. Made possible by an
innovative electronic front curtain
shutter, this accelerated response lets
you capture decisive moments with
utmost confidence. The electronic
front curtain shutter also produces less
shutter noise and vibration than
a mechanical front curtain shutter
(which can be activated if desired
through the MENU).
High sensitivity (ISO 100-16000)
The large Exmor ® APS HD CMOS sensor
provides an extremely wide sensitivity
range of 7 1/3 steps. You can use AUTO
ISO (100-3200) for outstanding results
in most lighting conditions or manually
raise sensitivity up to ISO 16000 when
lighting is low. Even at high sensitivity
settings, the 57 captures every
detail with natural tonal gradations
and extremely low noise. This makes the
57 perfect for shooting indoor athletes
at high shutter speeds without a tripod
or reproducing the mood of candlelit
rooms without supplemental lighting.
Even in dimly lit environments, you can capture
moving subjects clearly by using a high-sensitivity
setting and fast shutter speed.
Full-time Continuous AF
Even at maximum continuous shooting speed and
during live-view movie shooting, accelerated full-time
continuous phase-detection auto-focusing keeps your
subject in sharp focus without the slightest delay.
This remarkable AF performance, made possible by
Translucent Mirror Technology, lets you effortlessly
capture dramatic moments and expressions in all
types of situations with professional-looking results.
Enhanced Object Tracking
Newly improved Object Tracking utilizes powerful predictive focusing algorithms,
15 AF points in a wide focus area, blazing-fast BIONZ
® image processing and Sony’s
original subject recognition technologies to track subjects with speed and precision.
When your subject is a person, it automatically switches between face detection
tracking and object tracking, depending on whether your subject is facing the camera.