III. FEATURE DISCUSSION 19Design and Construction4. Select image and transfer-- Select images and transfer them to the PC.5. Wallpaper for computer-- Select an image to use as the background (wallpaper) forthe computer screen and transfer it to the PC. A JPEG file is automatically convertedinto a BMP file to be transferred and appears as the background (wallpaper) for thecomputer screen. RAW images cannot be transferred for this purpose.The Digital Rebel XTi is a compact, stylish and attractive DSLR that continues the designconcept of its predecessor, the Digital Rebel XT. The exterior surface is now coated with aleathery paint finish to make fingernail scratches less noticeable. The Canon logo is a bitbigger to make it stand out better in retail situations (2 mm wider and 0.4 mm higher).To improve holding ease, a convenient new rubber slip guard for the thumb (back, topright) and a new grip shape in the back have been incorporated. The grip is also thickerby 1 mm. The texture of the mode dial has been changed. The Print/Share button is nowon the upper left on the back of the camera where the digital control buttons are concen-trated. Clearly separating the digital control buttons and camera control buttons makesthe camera easier to operate. The new screen and the elimination of the bifurcated dis-play give the back of the camera a cleaner and more integrated appearance.The camera body construction of theDigital Rebel XTi is very similar to that ofthe Digital Rebel XT, a camera of provenruggedness and reliability. The stainlesssteel chassis and mirror box made ofhigh-strength engineering plastic (polycar-bonate with glass fiber) make the body asstrong as the XT’s. As with the XT, thecamera's top, front, and rear covers aremade of special engineering plastic (ABS resin, polycarbonate resin, and polycarbonateresin with special conductive fibers) for light weight, high strength, and electromagneticshielding. The XTi will come in two color versions, silver and black.The basic internal components and configuration are thesame as those of the Digital Rebel XT. The following unitshave been added or modified: Self Cleaning Sensor Unit(added), Display-off sensor unit (added), LCD screen (sizeincreased from 1.8 in. to 2.5 in.), LCD panel (eliminated).Note that in every parts category (except lead wires, whichremain unchanged at 12), the parts count on the DigitalRebel XTi has increased relative to its predecessor. Thetotal is now 1508, compared to 1319 previously. This is agood, if somewhat generalized, indication that the DigitalRebel XTi is a more sophisticated, and more expensive toproduce, camera than the Digital Rebel XT, and that itoffers exceptional value in the sub-$1000 category.• The shutter unit is counted as 1 part.• The E-ring is counted as a washer.• The official total excludes the screws and washers.Item XTi XTOptics 21 18Mechanicalparts 245 220Electricalparts 1046 915Circuitboards 21 19Lead wires 12 12Total(Official) 1345 1184Screws andwashers 163 135Total 1508 1319