Review Canon EOS 400D / Digital Rebel XTi
posted on 21 Jan 2008 11:56 by chungim in Camera| Phil: Canon did not provide us with any press materials until after the embargo (which occurred at 4 AM GMT), this designed intended to avoid those embarassing leaks which occur before almost every significant Canon announcement. As usual in this instance the 'accidental leak' still occured. I had a meeting at 9.30 AM and have been away from my desk since then. As a site which is proud of its track record of never breaking embargo it is frankly ridiculous to punish us for the failings of their own systems. We did not receive a briefing on this camera (officially we knew nothing about the EOS 400D until 4 AM GMT this morning) however Canon did brief, at some length it appears, other sites. So my apologies to our readers for having no in-depth editorial insight and no preview. We did have a positive meeting with Canon today and do hope this type of situation will not be repeated. UPDATE: 4/September/2006, we have just posted our detailed hands-on preview. Click here for our detailed hands-on preview of the Jump to:
Worldwide naming
Major new features / changes
What's missing? |
The EOS 400D is the first camera to incorporate the EOS Integrated Cleaning System. Based on significant research into the causes of dust in D-SLR cameras, the system combats dust in three important ways: Reduce, Repel and Remove.
- Reduce - Internal camera mechanisms are designed to minimise dust generation. The body cap is redesigned to prevent dust generation through wear on the cap itself.
- Repel - Anti-static technologies are applied to the low-pass filter covering the front of the sensor so as not to attract dust.
- Remove - A Self-Cleaning Sensor Unit uses hi-frequency vibrations to shake dust from the low pass filter for a period of approximately one second after each start up. For instant shooting after power up, this feature is disabled immediately the shutter release is depressed.
Canon has also developed an internal Dust Delete Data system, which can map the position of any visible dust on the sensor. This can then be deleted automatically after the shoot with the latest Digital Photo Professional software.
The EOS advantage
The EOS 400D inherits a number of advanced features proven in higher-end EOS models, such as the EOS 30D and 5D. These include its 9-point AF system, Picture Style (see Appendix: Technologies Explained), 9,999 image capacity folders and expanded Pictbridge functionality.
The EOS 400D also incorporates the same DIGIC II processor found across the EOS range right through to EOS‑1 professional models (see Appendix ‘Technologies Explained’). As well as providing superior image quality through advanced rendering algorithms and almost instant 0.2 second start up time, DIGIC II’s accelerated processing prioritises the photographer’s ability to keep shooting by clearing the buffer quickly between frame bursts.
Upgrading
The upgrade path to the EOS 400D from earlier EOS models is made easy by maintaining the same intuitive user interface and basic layout of key features and functions. Photographers are also able to use the same battery and Battery Grip BG-E3 as used on the EOS 350D, as well as continued support for all EF and EF-S lenses, EX Speedlites and EOS accessories.
Software
Consistent with the entire EOS Digital range, the EOS 400D is supplied with a comprehensive software suite to help the photographer’s workflow. This includes Digital Photo Professional (DPP), a powerful RAW converter that provides complete RAW image processing control. DPP also integrates with camera features such as the Dust Delete Data and Picture Style. The camera also comes with EOS Capture, Image/Zoom Browser and Photostitch, plus 100MB of personal online space on CANON iMAGE GATEWAY, Canon’s online photo sharing service.
Canon EOS 400D / Digital Rebel XTi specifications
| List price (US) * | • Body only: $799 |
|---|---|
| International naming | • US: Canon Rebel Digital XTi • Japan: Canon EOS Kiss Digital X • Elsewhere: Canon EOS 400D |
| Body material | Plastic (Stainless Steel chassis) |
| Sensor * | • 10.1 million effective pixels • 10.5 million total pixels • 22.2 x 14.8 mm CMOS sensor • RGB Color Filter Array • Built-in low-pass filter • 3:2 aspect ratio |
| Dust reduction * | • Low-pass filter vibration at power-on (can be interrupted) • Anti-static coating on sensor surfaces • Software based dust-removal (camera maps dust, removed later) |
| Image sizes * | • 3888 x 2592 (L) • 2816 x 1880 (M) • 1936 x 1288 (S) |
| Output formats | • RAW (.CR2) • RAW (.CR2) + JPEG Large/Fine • JPEG (EXIF 2.21) - Fine, Normal |
| Image processor | DIGIC II |
| Lenses | • Canon EF / EF-S lens mount • 1.6x field of view crop |
| Focus modes | • Auto Focus • Manual Focus (switch on lens) |
| Auto Focus | • 9-point CMOS sensor * • AF working range: -0.5 to 18 EV (at 23°C, ISO 100) * |
| AF modes | • AI Focus • One shot • AI Servo |
| AF point selection | • Auto • Manual |
| AF assist | Flash strobe |
| Shooting modes | • Auto • Program AE (P) • Shutter priority AE (Tv) • Aperture priority AE (Av) • Manual (M) • Auto depth-of-field • Portrait • Landscape • Close-up • Sports • Night portrait • Flash off |
| Metering | • TTL 35-zone SPC • Metering range: EV 1.0 - 20 EV (at 23°C, ISO 100, 50 mm F1.4) |
| Metering modes | • Evaluative 35-zone • Partial 9% at center • Center-weighted average |
| AE Lock | AE lock button |
| AE Bracketing | • +/- 2.0 EV • 0.5 or 0.3 EV increments |
| Exposure compen. | • +/- 2.0 EV |
| Sensitivity | • Auto (100 - 400) |
| Shutter | • Focal-plane shutter • 30 - 1/4000 sec (0.5 or 0.3 EV steps) • Flash X-Sync: 1/200 sec • Bulb |
| Aperture values | • F1.0 - F91 (0.3 EV steps) • Actual aperture range depends on lens used |
| White balance | • Auto • Daylight • Shade • Cloudy • Tungsten • Fluorescent • Flash • Custom |
| WB Bracketing | • +/-3 levels • 3 images • Selectable Blue/Amber or Magenta/Green bias * |
| WB fine-tuning | • Blue (-9) To Amber (+9) • Magenta (-9) to Green (+9) |
| Color space | • sRGB • Adobe RGB |
| Picture style * | • Standard • Portrait • Landscape • Neutral • Faithful • Monochrome • User 1 • User 2 • User 3 |
| Custom image parameters * | • Sharpness: 0 to 7 • Contrast: -4 to +4 • Saturation: -4 to +4 • Color tone: -4 to +4 • B&W filter: N, Ye, Or, R, G • B&W tone: N, S, B, P, G |
| Drive modes | • Single • Continuous: 3.0 fps up to 27 JPEG / 10 RAW frames * • Self-timer 10 secs (3 sec with mirror lock-up) |
| Mirror lockup | Yes (custom function) |
| Viewfinder | • Pentamirror • 95% frame coverage • Magnification: 0.8x (-1 diopter with 50 mm lens at infinity) • Eyepoint: 21 mm • Dioptric adjustment: -3.0 to +1.0 diopter • Fixed laser matte screen • Proximity sensor disables LCD shooting mode information * |
| Viewfinder info | • AF points • AF/FE lock • AEB • Shutter Speed • Aperture • Exposure Level / Compensation • Max. burst • AF/MF focus confirmation • CF warning |
| DOF preview | Yes, button |
| LCD monitor * | • 2.5" TFT LCD • 230,000 pixels • Wide viewing angle • 7 brightness levels • Up to 10x zoom playback |
| LCD shooting mode information | • Shutter speed • Aperture • Sensitivity (ISO) • Exposure mode • Meter / Exposure compenation • Bracketing • Flash compensation • White balance & fine tuning • Metering mode • Custom function set • Auto focus mode • Drive mode • Auto focus areas • Black & white mode • Beep • Red-eye reduction • Image size / quality • Battery status • Frames remaining |
| Record review | • Uses last play mode * • Magnification possible * • 2 / 4 / 8 sec / Hold |
| Flash | • Auto pop-up E-TTL II auto flash • Guide number approx 13 • Modes: Auto, Manual Flash On/ Off, Red-Eye Reduction • X-Sync: 1/200 sec • Flash exposure compensation: +/-2.0 EV (0.3 or 0.5 EV steps) • Coverage up to 17 mm focal length (27 mm FOV equiv.) |
| External flash | • E-TTL II auto flash with EX-series Speedlites • Hot-shoe |
| Other features | • Orientation sensor • Automatically writes FAT16/FAT32 depending on capacity |
| Auto rotation | • On (playback uses orientation data in file header) • Off |
| Playback mode | • Single image • Single image with info (histogram brightness / RGB *) • Magnified view (1.5 - 10x in 15 steps, browsable) • 9 image index • Auto play • Image rotation • Jump (by 10, 100 or date) |
| Custom functions | 11 custom functions with 29 settings * |
| Menu languages | • English |
| Firmware | User upgradable |
| Connectivity | • USB 2.0 (Hi-Speed) |
| Storage | • Compact Flash Type I or II • Microdrive supported • FAT 12/16 and FAT 32 support • No CF card supplied • Up to 9999 images per folder * |
| Power | • Lithium-Ion NB-2LH rechargeable battery (supplied & charger) • CR2016 Lithium battery (date/time backup) • Optional ACK-700 AC adapter |
| Direct printing | • Canon Selphy Printers • Canon Bubble Jet Printers with direct print function • Canon PIXMA Printers supporting PictBridge • PictBridge |
| Dimensions * | 127 x 94 x 65 mm (5.0 x 3.7 x 2.5 in) |
| Weight * | • Body (no battery): 514 g (1.1 lb) • Body (inc battery): 556 g (1.2 lb) |
| Software * | • Zoom Browser EX / ImageBrowser |
Additional images
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Technologies Explained
Picture Style
Picture Style pre-sets simplify in-camera control over image qualities. Picture Style pre-sets can be likened to different film types – each one offering a different colour response. Within each selectable pre-set, photographers have control over sharpness, contrast, colour tone and saturation. The camera’s factory default configuration is set to deliver immediately-usable JPEG images without need for additional menu settings. Picture Style presets applied to a RAW image do not degrade the image in any way and can be revised with Canon’s Digital Photo Professional software.
The six pre-sets include: Standard – for crisp, vivid images that don’t require post-processing; Portrait – optimises colour tone and saturation and weakens sharpening to achieve attractive skin tones; Landscape – for punchier greens and blues with stronger sharpening to give a crisp edge to mountain, tree and building outlines; Neutral – ideal for post-processing; Faithful – adjusts colour to match the subject colour when shot under a colour temperature of 5200K; Monochrome – for black and white shooting with a range of filter effects (yellow, orange, red and green) and toning effects (sepia, blue, purple and green). The User Defined Picture Style can be used to store up to three customised pre-sets, or any of the pre-sets available for download from Canon’s web site.
DIGIC II
Now found across the EOS range, DIGIC II is a purpose built, dedicated image processor responsible for the high speed calculations necessary in order to providing exceptionally accurate colour reproduction in real time. Canon’s second generation imaging engine, DIGIC II performs the duties of a number of separate processing units to speed processing, save space, and optimise battery life.
Canon’s processor overcomes the trade-off faced by other manufacturers between camera responsiveness and image quality. With its massive capacity, DIGIC II treats every image with the full complex processing algorithms required in order to deliver superb EOS picture quality, while enabling extended continuous shooting bursts.
CMOS
Canon’s CMOS technology is one of the company’s key competitive advantages, with noise reduction circuitry at each pixel site delivering virtually noise-free images. In comparison with CCD technology, the lower power consumption characteristics of Canon’s CMOS sensors also help optimise battery usage.
CCD sensors use a bucket relay system to transfer each pixel’s accumulated electrical charge to a corresponding gutter. The operation is time consuming and draws considerable power.
By contrast, signal conversion in Canon’s CMOS sensors is handled by the individual amplifiers at each pixel site. Unnecessary charge transfer operations are avoided, vastly speeding up the process of getting signal to the image processor. Noise generation is reduced, power consumption is limited and faster frame rate potential is increased.
Digital Photo Professional Software
Digital Photo Professional software provides high-speed processing of lossless RAW images. Processing with Digital Photo Professional allows real-time display and immediate application of image adjustments, giving control over RAW image variables such as white balance, dynamic range, exposure compensation and colour tone. Images can be recorded in sRGB or Adobe RGB colour space, and the Digital Photo Professional application supports sRGB, Adobe RGB and Wide Gamut RGB colour spaces. An ICC (International Colour Consortium) profile attaches automatically to RAW images converted to TIFF or JPEG images. This allows faithful reproduction of colours in software applications that support ICC profiles, such as Adobe Photoshop. For improved efficiency, a set of image adjustments can be saved as a recipe and applied.
edit @ 21 Jan 2008 12:15:07 by i Am Chun
edit @ 21 Jan 2008 16:48:36 by i Am Chun








