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EOS DIGITAL TECHNOLOGY

≥

IMAGING PROCESSOR

The backbone of a good digital camera is the

signal processing technology that renders and

writes your images to the memory card. Developed

to maximize performance between the capture

and recording aspects of digital photography,

Canon's DIGIC (Digital Imaging Integrated Circuit)

chip applies proprietary signal processing

algorithms to yield dramatic improvements in

image quality and camera responsiveness. This

ultra-high-performance imaging engine speeds

up the processing, compression, and display

and write times for each captured image, all

with low power consumption, saving valuable

battery power. The latest-generation ≥II

processor works in concert with Canon's

newest CMOS sensor to achieve even higher

levels of performance. New signal processing

algorithms work with the multichannel signal

from the sensor and the high-speed DDR

SDRAM (Double Data Rate Synchronous

Dynamic Random Access Memory) buffer to

deliver dramatically improved camera response.

Power consumption has been further

reduced for even longer battery

life. Color reproduction, too, is

significantly better, with more

natural rendition of bright,

high-saturation subjects

and more precise auto

white balance. Color

accuracy and noise

performance in

low light have

also been much

improved.

CMOS SENSORS

Canon has developed its own CMOS

(Complementary Metal-oxide Semiconductor)

sensor to record digital images, taking advantage

of the proprietary know-how gained during the

development and manufacturing of its renowned

autofocus sensors and semiconductor

manufacturing equipment. Compared to CCD

sensors which amplify signals only after they

have been transferred to an image processor,

CMOS sensors convert and amplify signals before

they are transferred. Using this method together

with additional proprietary technology, Canon's

CMOS sensors produce a cleaner signal from

the beginning. At the same time, power

consumption is reduced by up to 90% compared

to CCDs, and data transfer speeds can be

significantly increased via multi-channel readouts.

In addition, Canon's CMOS sensors incorporate

a unique on-chip noise reduction technology to

deal with both fixed

pattern and random

noise, resulting in

silky-smooth, film-like

images, with limited

power consumption,

at breathtaking speed.

CANON EF LENSES

All EOS Digital Cameras are compatible with the

full line of EF lenses and EOS system accessories.

With advanced technologies like high-speed

Ultrasonic focusing and Image Stabilization, as

well as a host of different zoom ranges, EF lenses

are the perfect complement to a Digital EOS.

Canon's Speedlite flash units with Canon's E-TTL

flash exposure system, and numerous other

accessories make EOS one of the most comprehensive

photographic systems available today.

POWERSHOT TECHNOLOGY

IMAGING PROCESSOR

≥

While much technical discussion of digital cameras

centers around the optics and the CCD sensor,

the complex task of image rendering is the job

of the image processor–the "brains" of a digital

camera. Canon's latest,

exclusive DIGIC Imaging

Processor significantly

enhances digital camera

performance in numerous

areas. DIGIC's high-speed

signal processing is combined with high-capacity

buffering to give Canon digital cameras fast

response and continuous shooting capability

unmatched by other digital cameras. DIGIC delivers

longer battery life and beautiful, rich color rendition

with far fewer white saturation problems. And

DIGIC's unequaled precision delivers clear,

noise-free images that are demonstrably superior.

iSAPS TECHNOLOGY

Canon iSAPS (Intelligent Scene Analysis based

on Photographic Space) technology dramatically

improves the performance of AF (Autofocus), AE

(Auto Exposure), and AWB (Auto White Balance).

By analyzing a huge volume of photography data,

accumulated over 60 years and the manufacture

of over 150 million cameras, Canon engineers

arrived at statistical relationships among focal

length, focus distance, scene brightness, and

other factors. Equipped with this "fore knowledge"

Canon PowerShot cameras can optimize AF/AE/

AWB settings for any given scene more rapidly

and more effectively.

High

Frequency

High

Frequency

Bright

Low

Frequency

Near

Luminance

Distance

Dark

Far

MULTI-POINT AiAF

Canon's wide-area AiAF intelligently and

automatically selects one or more focusing

points based on factors, such as subject position

and motion. AiAF works in conjunction with iSAPS

Technology to more quickly and accurately achieve

autofocus under a wide variety of shooting conditions.

You get fast, accurate AF whether you hold the

camera horizontally or

vertically, with stationary

or moving subjects, with

off-center subjects, and

even in low-light/low-

contrast lighting.

IMAGE STABILIZER*

The Canon Image Stabilizer uses gyroscopic

sensors to detect motion and generate a corrective

signal to reduce blur caused by camera movement.

An image-stabilizing lens group along the optical

axis is shifted in response to the detected

motion, providing effective cancellation of

unwanted lens movement and vibration. Result –

in still photography, long lenses can be hand

held at slower shutter speeds without blurred

images, and handheld video footage is smoother.

OFF

VGA FINE MOVIE*

PowerShot raises the bar further still, giving

the user the ability to capture smooth full-

motion (30 frame-per-second) video at full VGA

resolution (640 x 480 pixels). The user can

even choose VGA-Fine recording at this frame

rate, which yields even better picture quality

by lowering the compression rate. This

advanced movie mode also offers improved

sound quality, recording at 16-bit quantization

and a 22kHz sampling rate (compared to 8-

bit/11kHz for previous models).

*Available only in the PowerShot S1 IS.