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K20D
Advanced photography involves a serious passion for developing your own ideas and
experimenting with approach, subjects and technique. The PENTAX K20D builds on
the technology of the award winning K10D and oers the highest resolution camera in
the advanced photo enthusiast category with a number of customizable features that
are ideal for the more experienced shooter.
The Next Generation
In designing the K20D Digital SLR, PENTAX made the signicant
transition to a higher resolution 14.6 megapixel sensor,
rivaling the detail previously only found in images
captured with 35mm lm. This considerable gain oers
50 percent more resolution than 10 megapixel sensors,
and 20 percent more resolution than 12 megapixel
sensors used by our competition. Noise is minimized
and maximum sensitivity is achieved by using
peripheral circuitry merely 0.13 micro meters
thin. This allows the photo diodes in each
pixel of the sensor to be maximized at
over 40 percent of the total pixel area
(typically only 30-35 percent in similar
sensors from other manufacturers).
It also allows a more direct light path
to assure every detail is captured.
14.6 CMOS Sensor
CMOS, or complementary metal-oxide-semiconductors, are
a major class of integrated circuits, and CMOS technology
is used in a number of electronics including image sensors.
Two important characteristics of CMOS devices are high
noise immunity and low power consumption.