The XTi’s weight is still very modest although it has increased by 25 grams to 510g/18 oz., excluding battery pack, CF card and body cap, but including the backup battery and the eyecup.

While based on the Digital Rebel XT’s electrical components, the XTi’s electrical com- ponents are compatible with several significant new features, such as the 10.10- megapixel CMOS sensor, Self Cleaning Sensor Unit, Display-off sensor, and the 2.5- in. LCD screen. As with the XT, the XTi's main circuit board is a highly-integrated 8- layer board fitted with the digital control circuit, camera control circuit, image-signal processing circuit, and DC/DC converter circuit. In addition, there are five hard boards, and sixteen flexible boards.

 

SDR SDRAM

 

 

 

 

 

Self Sensor Cleaning Unit

 

 

Flash Circuit Board

Circuit Board

 

DIGIC II Image Processor

 

 

Main board (top)

Main board (bottom)

External Interface

 

 

 

 

 

 

Connection

 

 

 

Circuit Board

Motor Drive Board

 

 

 

Interface The USB 2.0 Hi-Speed, mini B port enables high-speed image transfers from the camera to a personal computer (see Direct Image Transfer) using Interface Cable IFC-400PCU (included). Also, the PTP protocol is now used for both Camera Direct printing and transmissions to a personal computer, making it unnecessary to switch the communica- tions setting.

An NTSC/PAL video output terminal is provided; it uses Video Cable VC-100 (included).

The remote control terminal is compatible with Remote Switch RS-60E3 (2.5 mm dia. mini jack, optional***). Wireless remote control is compatible with Remote Controllers RC-1 and RC-5 (optional). The wireless remote control receiver is built inside the camera grip. The system is compatible with all shooting modes and works within approx. 5 m/16.4 ft. (at front and center). When the Drive mode button is pressed, the self- timer/wireless remote control timer icon is displayed on the LCD screen.

Drive and Power Source The maximum continuous shooting speed of the Digital Rebel XTi is approx. 3 fps (in both the One-Shot AF and AI SERVO AF modes), the same as the Digital Rebel XT in spite of the larger files the XTi generates. This is achieved by a number of features: the reflex mirror drive and shutter drive are controlled independently; the advanced, Canon- designed and -manufactured CMOS sensor enables high-speed signal reading, and the DIGIC II image processor performs high-speed image processing.

To limit the increase in power consumption required by high-speed reading, the output amp's power consumption has been minimized. Further, during long exposures, power

III. FEATURE DISCUSSION

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Canon EOS manual SDR Sdram