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C
WHITE PAPER
THE CANON EOS DIGITAL
REBEL XTi CAMERA:
MORE REGAL THAN REBEL:
THE FINEST PERFORMANCE
AND THE BEST VALUE IN THE
UNDER $1000 CATEGORY
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Table of Contents I OVERVIEW 3 II NEW AND IMPROVED FEATURES 5 III FEATURE DISCUSSION 6 Newly Developed 10.1 MP Sensor 6 Comprehensive Dust Reduction System 7 New 9-point AF System 10 New 2.5-in. TFT LCD Screen 13 Display-off Sensor 13 New User Interface 14 Basic Operation Concept 14 New Info Display Items 15 Viewfinder 15 SET Button, Cross-Keys, DISP. 15 Improvements to Playback 16 Menus 16 Picture Style 17 Custom Functions 17 Camera Direct Printing 17 Direct Image Transfer 18 Design and Constru
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I. OVERVIEW The Canon EOS Digital Rebel XTi is the best entry-level digital single lens reflex (DSLR) camera on the market today. Compared with its competitors at the sub-$1000 price point, lens included, the XTi produces the finest images with the purest colors and the lowest noise, and has the most comprehensive solution to the problem of dust on the sensor. It also has the clearest and most elegant user interface, the fastest and most precise autofocus, and the most powerful and useful soft
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• Canon designs, develops and manufactures its own EF lenses, its own CMOS image sensors, and its own DIGIC image processors, with proprietary technologies that it doesn’t sell to anyone else. • Canon’s original EOS Integrated Cleaning System gives the Digital Rebel XTi a compre- hensive dust cleaning and management system offered by no other camera at any price. • The Digital Rebel XTi has a 9-point, high-precision autofocus unit that it shares with the EOS 30D. The central sensor of the AF
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II. NEW AND IMPROVED FEATURES • New class-leading 10.1 megapixel Canon CMOS image sensor with improved microlens array • Comprehensive EOS Integrated Cleaning System including Self Cleaning Sensor Unit and Dust Delete Data detection • Large and bright 2.5 inch, 230,000 pixel LCD screen with wide viewing angle • New, easy-to-use interface for camera settings with enhanced display information • Expanded Info screen including RGB histogram and CF card remaining capacity • Continuous shooting at 3
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III. FEATURE DISCUSSION Newly Developed, High- The all-new Canon CMOS sensor in the EOS Digital Rebel Resolution 10.1 Megapixel XTi gives this camera the highest overall performance in CMOS Sensor its class. Like all other Canon CMOS sensors, this unit is designed and manufactured by Canon using semiconduc- tor manufacturing equipment which was also designed and manufactured by Canon. This fully-integrated design 10.1 Megapixel CMOS Sensor and manufacturing system makes Canon unique in the pho
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images horizontally. The phase plate, or phaser layer, converts the images separated by LPF #1 from linear polarization to circular polarization and prepares these polarized components to be correctly separated into four square images by low-pass filter #2. The hybrid infrared-absorption glass reflects and absorbs infrared light, effectively suppress- ing red ghosting and color casts caused by reflections on the sensor surface. The sub- ject image divided into two images horizontally by the l
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The removed dust then sticks to an absorbent material ringing the low-pass filter. The sensor unit also has an internal O-ring around the perimeter to keep out dust. The area between LPF #1 and the CMOS sensor is thus sealed; dust cannot enter from the side. Low-pass filter 1 Piezoelectric element Instead of a dust-removal system which uses a vibrating O-ring glass, the Digital Rebel XTi uses its low-pass filter to vibrate directly, shaking off dust. Therefore, the optical performance is not
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operation. Also, if the self-cleaning unit is operated 5 consecutive times within 10 sec., it will not work for 10 sec. afterward. Turning the power off does not reset this. The restriction does reset if the cleaning function is not activated for at least 60 sec- onds. While the self-cleaning unit is disabled, if you select [Sensor cleaning: Auto] from the menu, the [Clean now] option will be grayed out and cannot be selected. Two kinds of dust are less likely to be moved by the accelerations
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If you use the Dust Delete Data feature and do not want to change the data of the dust coordinates, you can disable the default self-cleaning operation so it does not operate when the power is turned on or off. If you want to stop the Dust Delete Data from being appended to the images, the Dust Delete Data must be erased with the [Clear all camera settings] menu item. DPP Ver. 2.1 had the copy stamp tool for manually selecting and erasing round dust spots. This feature has been improved with t
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EV 18. Finally, the wider focusing area with nine AF points and the diagonal configura- tion of AF points in and around the center afford improved subject focus tracking. Focusing speed is on a par with that of the EOS 30D because the Digital Rebel XTi shares its high-speed 32-bit RISC microcomputer. The algorithm for AI SERVO AF contin- uous shooting has been fine-tuned and optimized for 3 frames per second. In the Creative Zone modes, the following AF modes can be selected with the AF mode s
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meters at the other 8 AF points. When an external EOS Speedlite is used, the AF-assist beam of the external unit is used. Manual Selection Speedlite AutomaticSelection Center Top/Bottom Left/Right Mid-left/Mid-right 580EX Yes Yes Yes Yes Yes 550EX Yes Yes — Yes Yes 430EX Yes Yes Yes Yes Yes 420EX Yes Yes Yes Yes Yes 380EX Yes* Yes — — — 220EX Yes* Yes — — — ST-E2 Yes Yes — Yes Yes * Focus can be achieved only with the center AF point. Some of Canon’s competitors have chosen to use in-body ima
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in lenses such as the EF 400mm f/2.8L IS USM or the EF 600mm f/4L IS USM. All over the world, photographers depend on Canon IS to help them achieve the highest possi- ble image quality. At some point, in-body stabilization may improve to the point at which such technology may be appropriate for certain segments of Canon’s DSLR range. It would be senseless to rule out such a possibility. Even now, differences in unit cost are not enough to be significant factors in such a decision. The bottom
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disabled by setting the [LCD auto off] menu item to [Disable]. The camera setting dis- play can also be turned off and on manually with the button (formerly INFO) . If the camera setting display is disabled, it might be difficult to discern whether the cam- era is turned on or not. A power lamp on the top of the camera is therefore provided to indicate that it is on. Other than a face, any object that comes near the dis- Light-receiving sensor play-off sensor will turn off the camera s
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New info display items The large LCD screen has enabled 8 new items to be added to the info display compared with the Digital Rebel XT: ISO speed, Dimmer offset, AF frame display, White balance adjustment, White balance bracketing, Beep, Camera side in effect External flash side in effect Red-eye reduction mode, and Shooting display mode. The least obvious of these, and perhaps the most clever, is Dimmer offset. One line down from the top on the far right hand side of the display, either of tw
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cross keys are assigned with functions to set the ISO speed, AF mode, white balance, and metering mode. The procedures to set the ISO speed, AF mode, white bal- ance, and metering mode are the same as with the Canon EOS 30D. Settings take effect from the moment they are selected. You no longer need to press the SET button to register the setting. Although the default setting for the SET button gives direct access to Picture Style, C.Fn.01 can task the button with control of Quality (JPEG qu
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Picture Style Picture Style, which Canon is implementing across its full EOS Digital range, is new to the sub-$1000 category. It can be selected directly with the SET button, or through Shooting menu 2. For the first 5 choices, Standard, Portrait, Landscape, Neutral and Faithful, the variables are sharpness, contrast, saturation and color tone. Each Style has preset values for these image characteristics that can be changed by the user in the menu. The process of selecting or refining a Pict
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• Red-eye reduction function • Face brightening correction function • Addition of supported paper sizes (4" x 8", 10" x 12", 8" x 10", 14" x 17") • Improved printing effects (Natural, without Red-eye reduction with Red-eye reduction Natural M, B/W, Cool Tone, Warm Tone added) • Adjustment of printing parameters • Addition of supported paper (Fine Art Photo Rag, Super Photo paper) without face brightner with face brightner Many of these items appeared on the EOS 30D. Beginners and advanced pho
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4. 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) for the computer screen and transfer it to the PC. A JPEG file is automatically converted into a BMP file to be transferred and appears as the background (wallpaper) for the computer screen. RAW images cannot be transferred for this purpose. Design and Construction The Digital Rebel XTi is a compact, stylish and attractive DSLR that contin
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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
