现在这个页面已经404了，估计是迫于佳能的压力;-)
价格方面，加28-135 IS头，1499.99
注意，现在amazon上面30D+28-135 IS的价格是1287
也就是说40D比30D要贵212美金，约等于1600人民币
现在30D，6500+1600=8100，和我预测的基本一致;-)
Technical Details
Resolution: Approximately 10.1 million effective pixels (totalpixels: approximately 10.5 million)
Recording pixels: 3888 x 2592
Sensor type: CMOS sensor, with primary R-G-B filtration
Sensor size: 22.2 x 14.8 millimeters
Pixel size: 5.7 microns square
Lens focal length factor: 1.6x
Sensor dust removal: EOS Integrated Cleaning System; activeremoval of dust by vibrating front low-pass filter; automaticremoval of dust spots, in Canon Digital Photo Professional software(v. 3.1 or higher)
Maximum frames per second: 6.5 frames per second (fps) at fullresolution
Maximum number of frames / burst: JPEG: 75; RAW: 17
Shutter speeds: 30 seconds to 1/8000, plus Bulb (1/3 or 1/2-stepincrements)
Flash sync speed: Up to 1/250, with EX-series Speedlites
Anticipated shutter durability: 100,000 exposures, based onCanon test methods
Computer interface: USB 2.0 (Hi-speed)
Image recording storage media: CompactFlash (CF) cards (type Ior II, including Microdrives)
Card compatibility: “FAT32” compatible–OK for cards over2GB
Image format options: JPEG (choice of “Fine” or “Normal”compression); RAW (Canon .CR2 RAW file format); RAW + JPEG (anyJPEG file size available; JPEG file written as separate file)
Analog to digital conversion: 14 bits per channel (16,382separate tones from brightest to darkest, for each channel)
Resolution options: “Large”–3888 x 2592 (approximately 10.1million pixels); “Medium”–2816 x 1880 (approximately 5.3 millionpixels); “Small”–1936 x 1288 (approximately 2.5 millionpixels)
File numbering: sRGB color space: IMG_0001.JPG or IMG_0001.CR2;Adobe 1998 RGB color space: first character is always underscore(_)
Folders: Automatically created for image storage; new folder canbe user-created with “Manual Reset” function; folders cannot befreely selected on memory card by the photographer
Highlight tone priority: Expands tonal range of brighthighlights by about one stop; ISO range limited to 200 to 1600;activated by C.Fn II-3-1
Data verification: “Original Image Data” can be appended to eachimage via Custom Function IV-6-1; requires optional Canon OriginalData Security Kit OSK-E3 to check authenticity
Live View viewing options: Cameras LCD monitor; computermonitor, via USB; computer monitor, via wireless transmitterWFT-E3A
Manual focus: Viewed on LCD monitor, with option to magnifyfocus area 5x or 10x
Autofocus: Possible–C.Fn III-6-1 active, press AF On button;mirror drops down temporarily while AF On button is pressed,allowing AF to function
Silent mode Live View shoot: Mode 1: First shutter curtainremains open; shooting up to 6.5 fps possible; Mode 2: Quieteroption; 2nd shutter curtain doesnt close until users finger istaken off shutter button
Accessory wireless transmitter: Canon WFT-E3A (optional,dedicated wireless transmitter)
Attachment to camera: Attaches to base of camera; totallyintegrated with EOS 40Ds design
Wireless transfer methods: 802.11b or 802.11g; link speed:approximately 11 megabits/second (802.11b) or 54 megabits/second(802.11g)
Connection method: Infrastructure or Ad Hoc (802.11g functionsin Ad Hoc mode)
Maximum wireless distance: Approximately 490 feet (150 meters),if “receiver” has its own antenna (depends on environment)
Wireless channels: 11 (in North American market)
Ethernet (wired) transfer: Yes; Ethernet 100Base-TX (maximumdistance approximately 1,000 feet); link speed: approximately 100megabits/second
Transfer options: 1. FTP mode (images sent to folder on hostcomputer); 2. PTP mode (remote control of camera possible fromcomputer); 3. HTTP mode (view cameras files using web browser;remote firing of camera possible)
Security options: Encryption: WEP or TKIP/AES; authentication:open system, WPA-PSK, or WPA2-PSK
USB “host” capability: Plug compatible USB devices into WFT-E2A,for use with the EOS 40D; GPS devices (write GPS time, coordinates,and altitude info into each files EXIF info); external hard drive(connect compact external USB hard drive, and write files directlyfrom camera to the hard drive as if its an additional memorycard)
LCD monitor: 3.0-inch (diagonal) TFT color; approximately 100%coverage; approximately 230,000 pixels on monitor; approximately140 degrees viewing angle
LCD monitor brightness: Adjustable in 7 levels (via Menu)
Video-out: Yes (to standard TV monitor); NTSC or PAL, selectableon Menu
Number of AF points: Nine, all cross-type AF points
Center AF point: Unique hybrid cross-type AF point; worldsfirst high-precision AF point with both horizontal and verticalhigh-precision; additional standard precision, cross-type sensorsfor lenses from f2.8 to f5.6
AF point selection: 1. Manual AF point selection via 9-waymulti-controller on back of camera; 2. automatic AF pointselection
AF activation: Shutter button, or new AF On button at back ofcamera
AF modes: One-Shot AF (for stationary subjects); AI Servo AF(for tracking moving subjects); AI Focus AF (auto selection ofOne-Shot or AI Servo AF)
AF sensor: Entirely new Canon CMOS AF sensor
AF sensitivity range: EV -0.5 to 18 (at 73 degrees F / 23degrees C, ISO 100)
Shutter speeds: 30 seconds to 1/8000 second, plus Bulb (1/3 or1/2-step increments); x-sync at 1/250
ISO range: 100 to 1600, in 1/3-step or full-stop increments; ISOcan be expanded to 3200 via C.Fn I-3-1
Auto ISO: Can be set in any exposure mode, including P, Tv, Av,and M; ISO usually based at 400; typical auto range is 100to 800,depending on conditions; manual exposure mode: auto ISO fixed at400
Exposure modes: Manual, Aperture-priority (Av), Shutter-priority(Tv), Program AE
Full-auto modes: Green Zone, Portrait, Landscape, Close-up,Action, Night Portrait, Flash Off
Metering: 35-zone metering sensor; Evaluative metering (linkedto all AF points); Center-weighted metering; Partial metering; Spotmetering at center of picture (approximately 3.5% of picturearea)
Metering range: EV 0 to 20 (all patterns, at normaltemperatures)
Exposure compensation: Possible in P, Tv, Av, and A-DEP exposuremodes; +/- up to two stops, in 1/2 or 1/3-stop increments (viaQuick Control Dial)
Autoexposure bracketing: Possible in P, Tv, Av, M, and A-DEPexposure modes; +/- up to two stops, in 1/2 or 1/3-stopincrements
Compatible flashes: All Canon EX-series Speedlites, includingnew Speedlite 580EX II
Camera menu sets flash: Yes (580EX II only, as of August2007)
E-TTL II flash metering: Flash metering not linked to active AFpoint; distance from compatible EF lenses now used; entire meteringarea can be averaged using Custom Function 14-1
Modeling flash: 1-second burst of flash possible at 70Hz whendepth-of-field preview button is pressed (580EX/EX II, 550EX,420EX, MR-14EX, MT-24EX, and Speedlite transmitter only)
Wireless E-TTL: Fully compatible, including ratio setting oversix-stop range
Flash exposure compensation: Up to +/- 2 stops can be set oncamera body (can also be set on compatible Speedlites)
Built-in flash: Covers lenses as wide as 17mm (27mm equivalent);Guide Number 43 (feet)/13 (meters), ISO 100
Viewfinder focus screen: New interchangeable “Ef” seriesfocusing screens; standard screen: Ef-A–precision matte screenvery similar to EOS 30D; optional Ef-D screen–precision matte withgrid lines; optional Ef-S screen–Super precision matte (superiormanual focusing with fast lenses, f1.8 to f2.8)
Viewfinder display: Similar to EOS 30D; new: ISO is alwaysdisplayed; new: B/W shooting mode icon; new: maximum burstavailable now two digits
Dioptric adjustme
nt: User-set from -3.0 to +1.0 (range can beextended using optional Canon dioptric Lens E, plus rubber frameEb)
Mirror lock-up: Possible via Custom Function III-6-1
Eyepiece shutter: None (cover is provided on included strap)
Color space: Standard sRGB or Adobe 1998 RGB (separate settingon Menu)
White Balance: Auto; Pre-set (Daylight, Shade, Cloudy, Tungsten,Fluorescent, Flash); color temperature (set by user from 2500K to10,000K in 100K increments); custom (shoot white object or 18% graycard, base WB on that neutral object)
White Balance correction: Fine-tuning of overall color, in anywhite balance mode; amber?blue correction, in 9 steps;magenta?green correction, in 9 steps; set on graph on LCD monitor,using 9-way controller; both types of correction can becombined
White Balance bracketing: Three separate files written with asingle click of the shutter; can be varied in the amber?bluedirection, or the magenta?green direction; can be adjusted up to+/- 15 mireds (equivalent to 3 steps on the 9-step adjust scale);can be combined with standard auto exposure bracketing (9 fileswritten to CF card)
