C WHITE PAPER THE CANON EOS 40D CAMERA: THE SPIRIT OF PHOTOGRAPHY
Table of Contents I. OVERVIEW II. SUMMARY OF NEW AND IMPROVED FEATURES 3 4 III. PERFORMANCE New 10.
I. OVERVIEW The new Canon EOS 40D welcomes users to the next generation of Digital SLR photography by continuing the Canon traditions of exceptional performance, quality and value. The EOS 40D has a newly-enhanced 10.1 megapixel CMOS sensor that takes advantage of Canon-developed manufacturing techniques to achieve fine detail, high image quality, and low noise. The output from the sensor is converted to 14 bits, rather than 12, for finer color gradation.
II. SUMMARY OF NEW AND IMPROVED FEATURES • 10.1-megapixel CMOS sensor (APS-C size) with improved microlenses for superior image quality • DIGIC III with 4-channel reading for fine image detail, natural colors and faster processing and writing • 14 bit A/D conversion yields finer gradation, more colors • Approx. 6.
The CMOS sensor in the EOS 40D has been designed and developed by Canon, and is made by Canon using semiconductor manufacturing equipment that was also designed and manufactured by Canon. The performance and value benefits that result from this integration are enormous. The EOS 40D boasts the highest performance in its class: approximately 10.1 megapixels, ISOs from 28.0mm New 10.1 Megapixel Sensor 14.8mm III. PERFORMANCE 22.2mm 42.
DIGIC III and 14-bit A/D Conversion Following its appearance on the EOS-1D Mark III (in tandem form), the EOS 40D also uses Canon’s latest image processor, the DIGIC III. It retains the DIGIC II's widely admired image detail, natural colors and high speed, while providing 1.7 times faster signal processing speed. The analog output signal from the imaging element is converted into a digital signal with 14 bits (16,384 colors) per channel instead of the previous 12 bits (4,096 colors).
The Picture Style function has the same specifications as Picture Style Screen those of the EOS 30D, but the EOS 40D is also compatible with Canon’s new Picture Style Editor software, which allows even more control over image quality (see page 26 for details). The EOS 40D has a separate Picture Style selection button to the left of the power switch to make selection easier. Next to the Picture Style button is the INFO. button which accesses the parameter setting screen.
[Auto] ISO Speed Settings ISO Speed Settings Shooting mode P/Av/ A-DEP Set within ISO 400-800 so that the respective shutter speed will not cause camera shake under the current lighting conditions. If overexposure will result at ISO 400, a lower ISO speed, as low as ISO 100, is set. Tv If overexposure or underexposure will result at ISO 400, the ISO speed is shifted within 100-800. (=EOS-1D Mark III's. C.Fn I -8-2) M Fixed at ISO 400.
White Balance Auto Brightness and Contrast Correction The white balance settings are basically the same as those of the EOS 30D. Only the color temperature (P) as a preset WB is new. The lowest manually selectable color temperature has been lowered from 2800K to 2500K in order to cover tungsten light more effectively. One can now register one setting of personal white balance under with the provided software. WB correction and WB bracketing settings can now be canceled with the INFO. button.
The [Sensor cleaning] menu is basically the same as the one in the EOS-1D Mark III. However, there are slight differences such as the shutter operation sequence for [Clean now]. For the EOS-1D Mark III, it is: Cleaning operation -> Shutter cocking -> Cleaning operation -> Shutter cocking -> Cleaning operation. In the EOS 40D, it is: Cleaning operation -> Shutter release -> Cleaning operation. Unit Construction Diagram Fig. 41 Unit construction diagram Fig.
Fig. 42 AFPosition point position and spacing AF Point and Spacing Specifications Comparison of AF Sensors Extreme-defocus compatibility 30D 1 (Center) Vertical-line cross-type sensor sensitive at center at center Yes -0.5 - 18 EV range [EV] Sensor pitch [µm] – 3.2 high-precision f/2.8 compatibility 40D 9 (All cross-type) 1.7 Cross-type sensor 14.4 16 3.7 5.9 The positioning of the AF points is almost the same as with the EOS 30D's AF sensor.
The algorithm for automatic AF point selection in the EOS 40D is the same as the EOS 30D's. However, because all the AF points are now cross-type sensors, subject detection is improved, making the AI SERVO AF subject-tracking performance better. Also, in the One-Shot AF mode, the probability of capturing the subject as intended is increased.
With DIGIC III Image Processor, DDR SDRAM and a circuit design to take advantage of their maximum performance, the maximum burst at approximately 6.5 fps is approximately 75 shots in JPEG Large/Fine and approximately 17 shots in RAW. By comparison, the maximum bursts for the EOS 30D were 30 Large/Fine JPEGs and 11 RAW. (These figures are based on Canon's testing standards with a 1GB CF card.
The EOS 40D's 22mm eyepoint is the distance at which the viewfinder image area can be viewed without any vignetting of the viewfinder on all 4 edges. Normally, most manufacturers define the eyepoint as the distance at which both the viewfinder image area and information display are visible. The 22mm specification for Viewfinder OpticsFig.
operation. It synchronizes with the mechanical 2nd-curtain shutter to obtain a slit exposure. (Note that with CMOS, it is difficult to have an electronic 2nd-curtain shutter. Therefore, only the 1st-curtain shutter is electronic.) As a result of the electronic 1st-curtain shutter, the [Silent shoot] Modes 1 and 2 make the shutter-release time lag shorter and reduce shutter-cocking noise. Mode 1 enables continuous shooting at approximately 6 fps and is quieter than ordinary, non-Live View shooting.
Similarly, with an Extension Tube and a shutter speed of 1/2000 sec. or higher, the exposure will be uneven at the top and bottom of the image. When using an EX-series Speedlite, the shooting sequence will be the same as the EOS-1D Mark III's Live View Function in either silent shooting Mode TS-E LensPhoto + 1/8000 sec.Lens + 1/8000 sec. 12 TS-E 1 or 2.
Although this series of white papers generally confines itself to new and improved features, the following summary of Live View Function may be useful: • Shoot while watching the camera LCD monitor instead of the finder • Excellent for precise macro focus • No need to stoop or stretch to look in the finder • 100% field of view helps control composition • Short lag time captures near-instantaneous movements • Type: electronic viewfinder with imaging sensor • Coverage: approx.
Exposure Control The EOS 40D uses the same 35-zone metering sensor as in the EOS 30D. The metering modes are evaluative, partial (approximately 9% of viewfinder area), spot (approximately 3.8% of viewfinder area), and center-weighted average metering. Metering Sensor Previously, during automatic AF point selection and AF point-centered evaluative metering, there was a tendency for slightly excessive compensation. The compensation is now looser so that exposure is more consistent.
[Built-in flash func. setting] is a group with [Flash exp. comp], [Shutter sync], and [E-TTL II] (Evaluative/Averaged metering). The latter 2 were previously Custom Functions. [External flash func. setting] now includes [Wireless set.] from the EOS-1D Mark III's [Flash function settings]. This is to enable wireless, multi-Speedlite control. Also, C.
The major circuit boards are as follows: • Main board (digital control circuit and camera control circuit) • Bottom board (flash circuit and actuator drive circuit) • Power circuit board These boards efficiently integrate various control circuits. There are also 23 flexible boards outfitted with the sensor, switches, and so forth. The main board is a highly integrated, 10-layer unit containing the digital control circuit and the camera control circuit.
The power circuit board has the circuit that generates and supplies the voltage required by the camera's circuits. The RoHS directive restricts the use of 6 toxic substances: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl, and polybrominated diphenyl ether. It applies to products sold in the EU (effective from July 1, 2006). All of the EOS 40D's parts conform to this directive. 62 Cross section at center Center Cross Section at Fig.
IV. CONVENIENCE Basic Operation Concepts While it is grounded in the EOS 30D's basic operation concepts, the EOS 40D has improvements that make it easier to use. The shooting buttons above the LCD panel have been reassigned; an AF Start button (AF-ON) is provided (as with the EOS-1D Mark III), and the Picture Style selection button is new. As much as possible, though, the operation method, screen design, and specifications were kept the same as those of the EOS-1D Mark III.
Setting Screens With the LCD panel display that appears after pressing the INFO. Button twice, pressing one of the top buttons, such as ISO speed/flash exposure compensation, will display the respective setting screen, as in the manner of the EOS Digital Rebel XTi. Because the EOS 40D does not have a display-off sensor, press the INFO. button to turn on/off the INFO display. If auto power off is [Off] and the camera is left idle, the LCD monitor will turn off automatically after 30 min.
With the [Erase images] menu, select [Select and erase images] and checkmark the images to be erased. Then all the checkmarked images can be erased at one time. My Menu Camera User Settings Erase Images Screen The My Menu feature keeps track of frequently modified menu items for quick and easy setting. One can register up to 6 of the most frequently-set menu options and Custom Functions under My Menu.
Camera Direct Printing Two useful additions have been made to printing direct from the camera. First, a preview display shows effects such as B/W, Vivid, Brightness correction, Hue, and Adjust levels before printing. The feature is not enabled for face brightener or red-eye correction. Then, tilt angle correction adjusts the angle of images shot with a tilt to print horizontally. With the trimming screen, turn the Quick Control Dial to tilt the image up to ±10 degrees in 0.5° increments.
V. SOFTWARE Consistent with Canon’s practice of providing a complete software package at no additional expense to purchasers of its Digital SLR cameras, the EOS Digital Solution Disk Ver.15 is included with the EOS 40D camera. It includes Picture Style Editor Ver.1.0 a new program discussed here. The other software on the disk has been upgraded for EOS 40D compatibility, including RAW files. EOS Utility Ver.2.
The settings in a. were previously available either on the camera or in EOS Utility, so that the results of any adjustments had PSE Main Window and Tool Palette to be checked later after the picture had actually been taken. With Picture Style Editor, the results of adjustment can be checked in real time. The adjustments in b. are available for the first time (with real time checking) with Picture Style Editor. Up to 100 color points can be selected in the color specifications provided in b.
The Navigator window supplements the operations performed in the main window and tool palette and offers the following functions: a. Enlargement display position shows the position displayed when the sample image in the main window is enlarged. One can also use this window to drag the enlargement display position around. The sample Navigator Window Enlargement display position image in the main window changes in response. b.
One can specify up to 100 color adjustment points, and the adjusted colors will be displayed on the adjustment color list. The adjustment color list displays and their functions are as follows: • Colors before and after adjustment • Apply/Do not apply checkbox • Range of effect overlap indicator The range of effect overlap indicator is displayed if the range of effect of an adjusted color overlaps the range of effect of another adjusted color.
One can save all the adjustments one has made with the tool palette as an original Picture Style file (with the .PF2 extension). (Because adjustments made in Picture Style Editor are saved in Picture Style files, they are not saved in the sample image used for the adjustment process.) Adjustments are saved in the save window, which appears when you click the save window display button in the tool palette.
VI. ACCESSORIES AND LENS Battery Grip BG-E2N The BG-E2N is a high-capacity battery grip dedicated to the EOS 40D. It was developed to enable high-volume shooting and easier vertical shooting. It can accommodate the BP-511A as well as AA-size batteries. In terms of function, the BG-E2N is the same as Battery Grip BG-E2 for EOS 30D, 20D, and 20Da. However, the battery compartment cover now has sealing material to make it more resistant to dust and water than the BG-E2.
Wireless File Transmitter WFT-E3A The WFT-E3A is a dedicated EOS 40D accessory similar to the WFT-E2A (the wireless file transmitter unit for the EOS-1D Mark III) offering wireless or wired network functions (via FTP, PTP, or HTTP) and support for USB peripherals (specifically, external storage devices and GPS units). There are 2 main differences from WFT-E2A: inclusion WFT-E3A of controls for vertical shooting and inclusion of the unit’s own power supply.
• Offers FTP, PTP, and HTTP communication modes: ° FTP: Image transfer over wireless or wired networks to an FTP server ° PTP: Communication between EOS Utility and the camera over wireless or wired networks ° HTTP: Remote capture over wireless or wired networks using a web browser • Better user support in configuring wireless or wired network settings: ° Wizard-based configuration of transfer settings through the camera GUI ° Includes features for network detection and automatic setup (access point detecti
New IS Lens The Canon EF-S 18-55mm f/3.5-5.6 IS is a standard zoom lens specifically for cameras that take EF-S lenses. It was developed in response to market demand for a zoom lens equipped with Image Stabilizer technology at a reasonable price. The advantages of IS in the lens are, first, that each IS system can be designed and optimized for its specific application, yielding a level of performance unattainable by the in-body, shifting sensor technique.
• Compensation optics lens barrel suspended by 3 springs that hold it in place in the center, making it possible to eliminate the compensation optics retaining mechanism in this IS unit • Orientation of the compensation optics lens barrel along the optical axis maintained using the force exerted by angle-mounted springs and ceramic ball bearings (The rotation of these ceramic ball bearings ensures that the corrective optics are driven smoothly) • Silicone resin damper fitted between the compensation optics
• Flare and ghosting minimized by optimized lens configuration and coating • Optical system constructed using only lead-free glass • Improved feel and handling from new exterior design with L-series type paint finish, finer zoom ring grip pattern and re-shaped switch panel • 5 types of EOS-dedicated information signal transmission: lens status, lens type, metering information, focal length, AF drive info • Rubber ring on rearmost lens surface to prevent damage to lens or camera • Back of lens mechanically
VII. SPECIFICATIONS Type of Camera Image Sensor Type: Digital AF/AE SLR Recording Media: CF Card Type I and II and external media (USB v.2.0 hard drive, via optional Wireless File Transmitter WFT-E3A) Image Sensor Size: 0.87 x 0.58 in./22.2 x 14.8mm (APS-C size sensor) Compatible Lenses: Canon EF, EF-S, TS-E, and MP-E lenses Lens Mount: Lens Mount: Canon EF mount Lens FocaL Length Conversion Factor: 1.6x Type: High-sensitivity, high-resolution, single-plate, CMOS sensor Effective Pixels: Approx. 10.
Viewfinder Type: Eye-level SLR with fixed pentaprism Coverage: Approx. 95% horizontally and vertically Magnification: 0.95x (-1 dpt with 50mm lens at infinity) Eyepoint: Approx. 22mm Dioptric Adjustment Correction: -3.0 to +1.
Built-in Flash Type: Auto pop-up, retractable, built-in flash in the pentaprism Guide Number: 43 (feet)/13 (meters), at ISO 100 Recycling Time: Approx. 3 sec. Flash-ready Indicator: Flash-ready indicator lights in viewfinder Flash Coverage: 17mm lens focal length (equivalent to 27mm in 35mm format) Flash Metering System: E-TTL II autoflash Flash Exposure Compensation: +/-2 stops in 1/3- and 1/2-stop increments Drive System Drive Modes: Single, silent, high-speed continuous (approx. 6.
Power Source Battery: One dedicated Battery Pack BP-511A, AC power can be supplied via the optional AC Adapter Kit ACK-E2 Number of Possible Shots: Normal shooting: approx. 1,100 shots (approx. 800 shots with 50% flash use) at 73°F/23°C, Approx. 950 shots (approx. 700 shots with 50% flash use) at 32°F/0°C. Tests comply with CIPA test standards Battery Check: Automatic Power Saving: Provided. Power turns off after 1, 2, 4, 8, 15, 30 min. Back-up Battery: One CR2016 lithium battery. Battery life approx.
VIII. FEATURE COMPARISON CHART EOS 40D vs. EOS 30D Comparison Chart Item Image Sensor EOS 40D EOS 30D Effective pixels [Approx. pixels]/Image sensor 10.1 million/CMOS 8.2 million/CMOS Effective sensor size [mm] 22.2mm x 14.8mm 22.5mm x 15.0mm Lens crop factor 1.
EOS 40D vs. EOS 30D Comparison Chart (cont.) Item EOS 40D 35 Sensor zones Metering mode Evaluative Yes Partial Yes Spot Yes Yes Center-weighted average Exposure Control 1–20 Metering range [EV] Simple shooting zone Auto Applied shooting zone ISO sensitivity 1/3-step Setting increment H:3200 Manual/AEB System 1/2, 1/3 • ±2 Increments and range 1/8000–30, Bulb Speed [sec] 1/250 Max sync.
EOS 40D vs. EOS 30D Comparison Chart (cont.) Item EOS 40D EOS 30D 2.0 Hi-Speed USB Ver.
IX. CONCLUSION No product can be perfect for everyone, but the EOS 40D comes pretty close. It has immense appeal to advanced amateurs because of its exceptional image quality combined with an unintimidating and convenient operating system. Its reasonable size and weight will travel well (a plus for professionals, too) and fit smaller hands comfortably. All prospective EOS 40D owners will see a 10.
