Canon EOS White Paper

Also see for EOS Digital Rebel: Instruction manual Instruction manual Instruction manual Instruction manual Instruction manual

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Canon EOS White Paper Manual pdf 20 page image

III. FEATURE DISCUSSION 20InterfaceDrive and Power SourceThe XTi’s weight is still very modest although it has increased by 25 grams to 510g/18oz., excluding battery pack, CF card and body cap, but including the backup battery andthe 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-signalprocessing circuit, and DC/DC converter circuit. In addition, there are five hardboards, and sixteen flexible boards.The USB 2.0 Hi-Speed, mini B port enables high-speed image transfers from the camerato 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 andtransmissions 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 ControllersRC-1 and RC-5 (optional). The wireless remote control receiver is built inside the cameragrip. The system is compatible with all shooting modes and works within approx. 5m/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.The maximum continuous shooting speed of the Digital Rebel XTi is approx. 3 fps (inboth the One-Shot AF and AI SERVO AF modes), the same as the Digital Rebel XT in spiteof the larger files the XTi generates. This is achieved by a number of features: the reflexmirror drive and shutter drive are controlled independently; the advanced, Canon-designed and -manufactured CMOS sensor enables high-speed signal reading, and theDIGIC II image processor performs high-speed image processing.To limit the increase in power consumption required by high-speed reading, the outputamp's power consumption has been minimized. Further, during long exposures, powerFlash Circuit BoardSelf Sensor Cleaning UnitCircuit BoardMotor Drive BoardExternal InterfaceConnectionCircuit BoardSDR SDRAMDIGIC II Image ProcessorMain board (top) Main board (bottom)