Sony DXC-D55 Series Brochure & Specs page 3

FEATURES
Excellent Picture Quality
Three-chip 2/3-inch Type Power HAD
EX CCDs
The DXC-D55 Series is equipped with the
field-proven three-chip 2/3-inch type
Power HAD EX CCDs, offering high hori-
zontal resolutions of 920* TV lines. These
high-performance CCDs also provide
excellent sensitivity of F11 (at 2000 lux,
3200K), a remarkable signal-to-noise ratio
of 63 dB and extremely low smear level
of -145 dB (typical).
* On DXC-D55P model
14-bit A/D Conversion
The Sony DXC-D55/D55WS incorporates
a high-quality14-bit A/D conversion circuit
that allows images captured by the Power
HAD EX CCDs to be processed with four
times the precision than 12-bit A/D con-
verters. In particular, this higher resolution
reproduces the contrast more faithfully
in mid-to-dark-tone areas of the picture.
In addition, the 14-bit accuracy helps
to eliminate pre-knee signal compression
at highlight areas, and allows the camera
to clearly reproduce a high-luminance
subject.
Advanced Digital Signal Processing
(ADSP)
A key indicator of quality in a digital
camera is how many bits are used in its
nonlinear processes, such as gamma
correction. The DXC-D55 Series has more
than 30 bits, thus minimising rounding
errors and maintaining the high-quality
images captured by the Power HAD EX
CCDs. This advanced digital signal pro-
cessing (ADSP) also enables highly
sophisticated image controls, such as
knee saturation, adaptive highlight control
and skin-tone detail controls.
Power HAD EX CCDs
High-integrity 14-bit A/D Conversion
12-bit
High-performance Digital Signal Processing
Pre Knee
Power HAD EX
CCD Imager
14-bit
DSP
To a Camera
Adaptor
A/D
14-bit A to D
Converter
Advanced Digital
Signal Processor