Canon EOS 20D Digital User manual

e

EOS 20D
SERVICE
MANUAL
Copyright © 2004 Canon Inc.

PREFACE
This manual contains information for servicing the product, and has the following
sections:
General Information
Provides the basic information needed to understand the product.
(Operating instructions are not included. Refer to the products instruction book if
necessary.)
Technical Information
Provides technical information about the mechanism and electronics of the
product.
Repair Information
Provides information about ths tools and expendables required for disassembly,
reassembly, adjustment and measurement of the product, and their locations and
method of use.
Adjustments
No electrical adjustments for this product.
Parts Catalog
Circuit Diagrams
Software Information
Appendix
I

General
Information
Trademarks
The product names and company names described in this CD-ROM are the registered trademarks of
the individual companies.
Copyright
Canon Inc. retains the copyright to all data contained on this CD-ROM.
Reproduction, publication (including on the World Wide Web) alteration, translation into another
language, or other use of the data in whole or part, contained on this CD-ROM without the written
consent of Canon Inc., is prohibited.
Copyright © 2004 Canon Inc.

CONTENTS
Page
General Information
1. FEATURES .............................................................................................1
1.1 High precision and high image quality ............................................1
1.2 High performance, high speed, and easy shooting.........................1
1.3 High-precision and high-speed 9-point AF......................................1
1.4 Optimum image creation.................................................................1
1.5 Compatible with all EF-S and EF lenses.........................................2
1.6 Metallic exterior for high-grade design............................................2
1.7 EOS 10D user suggestions incorporated
for enhanced performance ..............................................................2
1.8 EOS 10D's superior basic features and operation ease retained ...3
1.9 Camera Direct Printing and DPOF..................................................3
2. OVERVIEW.............................................................................................4
2.1 EOS 20D body ................................................................................4
2.2 Accessories.....................................................................................14
2.3 Software for EOS 20D.....................................................................15
3. SPECIFICATIONS ..................................................................................16
4. NOMENCLATURE AND DIMENSIONS..................................................45
4.1 Nomenclature..................................................................................45
4.2 Dimensions .....................................................................................46
5. VISUAL INDICATORS ............................................................................47
5.1 Viewfinder Information ....................................................................47
5.2 LCD Panel Information and Model Dial...........................................48
5.3 Functional display screens..............................................................50
5.4 LCD Monitor Menus ........................................................................51
6. CUSTOM FUNCTION .............................................................................54
6.1 Custom Function List ......................................................................54
7. PROGRAM DIAGRAMS..........................................................................55
7.1 Program Diagrams..........................................................................55
7.2 E-TTL Program Diagrams...............................................................55
8. SYSTEM ACCESSORIES COMPATIBILITY TABLES ...........................56
8.1 System Accessories........................................................................56
8.2 System Accessory Compatibility.....................................................57
9. AGREED ITEMS .....................................................................................58
9.1 Agreed Answers for User Support ..................................................58
9.2 Built-in Flash and EF Lens Compatibility ........................................63
General Information
I

1. FEATURES
1.1 High precision and high image quality
Newly-developed, large, single-plate CMOS sensor 22.5 ×15.0 mm
Effective angle of view: Equivalent to 1.60 normal EF lens focal length
Effective pixels: Approx. 8.20 megapixels for high precision and high image
quality
DIGIC II imaging engine for high-precision and natural color reproduction at
high speed
Accurate auto white balance
Noise reduction for long exposures
1.2 High performance, high speed, and easy shooting
5 shots/sec. max. continuous shooting speed
Max. burst of approx. 23 shots*for Large/Fine and 6 shots for RAW
*When Canon 512MB CF card is used
High-speed shutter and X-sync with 1/8000 sec. shutter speed and 1/250 sec.
X-sync
Shutter durability improved over the EOS 10D
Startup time approx. 0.2 sec.
When Power Switch is set from Off to On, and startup is completed as SW-1 is
On (ready to shoot).
USB 2.0 Hi-Speed
1.3 High-precision and high-speed 9-point AF
Wide-area, 9-point AF with center AF point sensitive to f/2.8 lenses
AF points positioned near golden section points, and nine AF points for better
subject coverage.
Metering range EV -0.5 to 18
High-speed AF, faster than the EOS 10D's
1.4 Optimum image creation
Six JPEG recording quality modes, RAW, and RAW+JPEG
White balance correction for fine tuning WB
(1) Blue/amber bias and magenta/green bias correction (±9 levels) enabled
(2) Obtains the same filter effects as with LB and CC filters
Improved white balance bracketing
Besides blue/amber bias bracketing, magenta/green bias bracketing also
possible
Parameter 1 for vivid and crisp images set automatically in Basic Zone modes
In Creative Zone modes, Parameter 1 or 2 (standard setting for EOS 10D) can be
set.
Choice of three processing parameters
General Information
1

New monochrome mode added to processing parameters
Besides contrast and sharpness, filter effects and toning newly added.
Complies to DCF 2.0 and Exif 2.21 which supports Adobe RGB
Color space (sRGB/Adobe RGB) added to menu.
1.5 Compatible with all EF-S and EF lenses
Optimum lens is the EF-S 17-85mm f/4-5.6 IS USM (equivalent to 27-136mm)
Compatible with all EF lenses with no restrictions
1.6 Metallic exterior for high-grade design
Exterior design conveys an aura of luxury, strong presence, and reliability
(1) Canon logo in relief with white coloring
(2) Optimum body size and holding comfort for advanced amateurs
1.7 EOS 10D user suggestions incorporated for enhanced performance
Shooting features
(1) E-TTL II autoflash algorithm for high-precision and stable flash exposures
• Both the built-in flash and external, EOS-dedicated Speedlite are controlled
by E-TTL II autoflash
• C.Fn-14-1 enables E-TTL II's averaged flash exposures
(2) Built-in flash covers 17mm lens focal length and flash head at higher
position
(3) Precision Matte focusing screen for easier focusing
(4) ISO auto in Basic Zone modes improved
(5) Viewfinder magnification of 0.90
Recording quality
(1) Faster writing to CF card
(2) Power-saving design enables more shots to be taken
(3) RAW+JPEG enables the RAW and JPEG images to be saved as separate files
(4) Original image verification data can be appended
Operation ease and body
(1) Multi-controller enables quick AF point selection
(2) Smaller and lighter than the EOS 10D
• The width, height, and depth are respectively 5.7 mm, 2 mm, and 3.5 mm
shorter than the EOS 10D. And the weight is 105 g lighter.
(3) Power switch now integrated with Quick Control Dial ON switch
Menu and playback features
Improved menu display and playback screen
• Current menu category (Shooting, Playback, Setup) indicated by color-
coded icon
• During playback, a single image without information can be displayed
Accessories
Battery grip for size-AA batteries attachable
General Information
2

1.8 EOS 10D's superior basic features and operation ease retained
Excellent basic shooting and playback features
(1) Compatible with CF card Type I/II with 2GB or larger capacity
(2) Twelve shooting modes (seven Basic Zone modes and five Creative Zone
modes)
(3) Three AF modes (One-Shot AF, AI SERVO AF, AI Focus AF)
(4) 35-zone metering sensor and three metering modes (evaluative, partial,
centerweighted averaged)
(5) Three drive modes (Single, continuous, self-timer)
(6) ISO 100, 200, 400, 800, 1600, H: 3200, ISO auto
(7) Nine white balance modes (Auto, six preset modes, manual, color
temperature)
(8) AE lock, exposure compensation, AEB, and flash exposure compensation
provided. Also compatible with all features of EX-series Speedlites.
(9) Dioptric adjustment from -3 dpt to +1 dpt, depth-of-field preview, and LCD
panel illumination provided
(10) Single image display, 9-image index display, magnified view, and auto play
possible
(11) Jump display, image rotation, auto rotation of vertical images, and image
protect/erase provided
(12) LCD monitor brightness adjustable to 5 levels (gray chart displayed during
adjustment)
(13) Compatible with NTSC/PAL video OUT
Superb basic operation ease and shooting priority retained
(1) Easy operation with Mode Dial, Main Dial, and Quick Control Dial
(2) Camera instantly becomes ready to shoot when you press the shutter button
halfway even during menu display or image playback
(3) Shooting-related controls (LCD panel, buttons) are concentrated on the
camera top and upper right on the camera back
(4) Menu display and playback-related controls are concentrated on the left of
the camera back
(5) Icons for playback-related buttons are printed in blue
Eighteen Custom Functions with 50 settings
1.9 Camera Direct Printing and DPOF
Compatible with PictBridge, CP Direct, and Bubble Jet Direct
(1) PTP connection with a personal computer easily enables image viewing,
downloading, and deletion
(2) Faster printing enabled with Canon BJ printers using PictBridge direct print
function
Compatible with DPOF printing specification
General Information
3

2. OVERVIEW
2.1 EOS 20D body
While retaining the best features of the EOS 10D, the EOS 20D is a high-end,
digital AF SLR for advanced users. New technologies have boosted the basic
performance and user suggestions have also been incorporated.
Table 1 compares the EOS 20D and EOS 10D. (Shaded EOS 20D specifications
are superior to EOS 10D's.)
The EOS 20D's improvements over the EOS 10D are outlined below.
General Information
4
EOS 10D
CMOS
1.6
Compact Flash
1. Large/Fine, 2. Large/Normal, 3. Middle/Fine, 4. Middle/Normal,
5. Small/Fine, 6. Small/Normal
7. RAW+L/F, 8. RAW+L/N, 9. RAW+M/F, 10. RAW+M/N,
11. RAW+S/F, 12. RAW+S/N, 13. RAW ("RAW only" not available with 10D)
CF TypeI, II/1
Primary colors
Image sensor
2800 - 10000 K/100 K
1. Auto, 2. Daylight, 3. Shade, 4. Cloudy, 5. Tungsten light,
6. White Fluorescent light, 7. Flash, 8. Custom, 9. Color temperature
EOS 20D
22.7 × 15.1
635
22.5 × 15.0
7.4
JPEG embedded in RAW file
C.Fn
6.30
6.4
95% vertical, 95% horizontal
DIGICDIGIC II
Blue/amber bias
Magenta/green bias
Main Dial + Quick Control DialMulti-controller
Yes (LED)Yes (LED+LTC reflector)
79
Yes
6.30
2.80
1.60
820
Separate RAW & JPEG files
Menu
8.20
4.30
YesYes (Exif2.21)
Standard, Set 1 to 3Parameter 1, 2; Set 1 to 3, monochrome
Contrast, sharpness, color saturation,
color tone
Color: Contrast, sharpness,
color saturation, color tone
Monochrome: Contrast, sharpness, filter
effect, toning
–
Blue/amber bias: ±9 levels
Magenta/green bias: ±9 levels
20mm
-
3 to +1 dpt.
Yes
0.880.9
New Laser MattePrecision Matte
2.0
8.20
Specification
Recording Media
2 GB and higherCompatible Card Capacity
Imaging processor
Recording
System
Recording Quality
Save Format
JPEG
RAW
Selection Method
Large
Middle
Small
RAW
RAW+JPEG
Settings
WB Correction (Levels)
50 kph predictive AF
(EF 300mm f/2.8L IS USM, approx. m) 8
sRGB
±3 levels in 1-level incrementsAmount
3 images with one shotShutter Release
Adobe RGB
Setting
Items
Color Space
Method
Effective Range (m)
AF-assist Type
Direction Blue/amber bias
Processing
Parameters
Recorded pixels
(Approx.
megapixels)
WB Bracketing
Slot Type/Qty
System
Color Temp. Spec. (Range/Increments)
Coverage (Approx.)
Magnification
Eyepoint
Dioptric Adjustment
Focusing Screen
Depth-of-field Preview
Viewfinder
Autofocus
AF Mode
Superimposed Display
One-Shot/AI SERVO/AI FOCUS
Stroboscopic flash
Center: 4, Periphery: 3.5
AF Points
AF Point Selection
EV 0.5 - 18EV
-
0.5 - 18Brightness
Image sensor
Effective Pixels (Approx. megapixels)
Size (mm)
Focal Length Conversion Factor
Pixel unit (µm square)
Color Filter Type
Image sensor
White
Balance
Table 001 Specifications Comparison of EOS 20D and EOS 10D (1/2)

General Information
5
Table 001 Specifications Comparison of EOS 20D and EOS 10D (2/2)
EOS 10D
35
EV 1 - 20
Evaluative, partial at center, centerweighted averaged
Auto
100 - 1600 (whole-stop increments), H: 3200
Yes
Yes
13
3
Lamp
1. Full Auto, 2. Portrait, 3. Landscape, 4. Close-up, 5. Sports, 6. Night Portrait,
7. No Flash, 8. Program AE, 9. Shutter speed-priority AE,
10. Aperture-priority AE, 11. Manual, 12. Depth-of-field AE
EOS 20D
±2 in 1/2- or 1/3-stop inc.±2 in 1/3- or 1/2-stop inc.
±2 in 1/2- or 1/3-stop inc.
1/4000 sec. - 30 sec., bulb
1/200
Yes
±2 in 1/3- or 1/2-stop inc.
Yes
±2 in 1/2- or 1/3-stop inc.±2 in 1/3- or 1/2-stop inc.
1.1
Yes
Yes (N3-type)
Yes
2.22.21
BP-511A/BP-511/BP-512
Yes
500 (BP-511)700 (BP-511A)
BG-ED3
–
CR2025CR2016
20.2
149.7 × 107.5 × 75.0mm144 × 105.5 × 71.5mm
790 g685 g
BG-E2 (size-AA batteries compatible)
Black
Magnesium
Stainless steel
0 - 40
85% R.H. or less
Yes
Yes
1.02.0
–Yes
17/6118/50
1.12.0 Hi-Speed
6
3
3
9
9
–Yes (C.Fn14-1)
1/8000 sec. - 30 sec., bulb
1/250
5
5 (full-charged battery, USM lens)
E-TTLE-TTL II
1817
Yes
Yes (up to 3 slave groups)
1.8
11.8
Single, Single image with Info, 9-image index
Yes
Yes
1.5 - 10
15
90°, 270°
Single
NTSC/PAL
E-TTLE-TTL II
55 (gray chart display)
23* (Large/Fine)
Yes
Specification
Sensor Zones
Exposure
Control Basic Zone
ISO Speed Creative Zone
Evaluative metering
E-TTL II Autoflash Averaged metering
One-ShotContinuous
shooting (fps) AI SERVO
JPEG
Max. Burst RAW
Mag. (Approx.)Magnified Zoom
Display
Direct Printing
Steps
Metering range (EV)
Metering Modes
Exposure Compensation
AEB (increments and range)
AE Lock
Single/Continuous/Self-timerDrive Modes
Flash Exposure Control
Guide No. (ISO 100, m)
Coverage
Recycling Time
Red-eye Reduction
Flash Exposure Compensation
FE Lock
Speeds
X-sync
Durability
Shooting Modes
Shutter
Auto flash system
FP flash, flash exposure compensation,
Wireless, multi-Speedlite Control
External
Flash
Screen Size
Pixels (Approx.)
Brightness (Levels)
Display Modes
Histogram
Highlight alert
Image Rotation
Image Protection
Video OUT
PictBridge (PTP) Compatiblity
CP/BJ Direct Compatibility
12
Yes
Yes
Menu Interface Language
Custom Functions (Qty/settings)
Data Verification Data
Chassis Material
Startup Time (Approx. sec.)
Dimensions (W×H×D)
Weight
Operating Temperature (°C)
Operating Humidity
LCD Monitor
DCF (Ver.)
Exif (Ver.)
DPOF
Printing
USB (Ver.)
Video OUT
Remote Control Terminal
PC Terminal
External
Interface
Material
Exterior Color
LCD Panel Illumination
EF-S Lens Compatibility
Exterior
Possible Shots (20°, FA50%)
Batteries
AC Power
Date/time backup battery
Battery Grip
Power Source
Playback
Drive
Built-in Flash

1) Image recording
(1) Large, single-plate CMOS sensor with approx. 8.20
megapixels
The newly-developed CMOS sensor has approx.
8.20 effective megapixels and an picture size of 22.5
mm ×15.0 mm. (The focal length conversion factor
is 1.6×.)
(2) DIGIC II imaging engine
DIGIC II imaging engine for high-precision and
high-speed natural color reproduction.
(3) Better RAW+JPEG file handling
With the EOS 10D, dedicated software was
required to extract the JPEG file embedded in the
RAW file. But with the EOS 20D, the RAW and JPEG
images are saved as separate files in the CF card as
with the EOS-1D.
Also, as shown in Fig. 002, you can use the
menu's [Recording quality] to select the RAW+JPEG
option directly.
As with the EOS-1D Mark II, RAW files use a new
format indicated by the CR2 file extension.
(4) Complies to DCF 2.0 and Exif 2.21 supporting Adobe
RGB
The camera complies to DCF 2.0 and Exif 2.21, updated to support Adobe
RGB. When you use software compatible with Exif 2.21, images captured
with the EOS 20D will open automatically in the Adobe RGB color space.
Also, when you use a printer which complies to Exif 2.21, the printer will
suitably adjust the color saturation of the print.
(5) Faster writing to CF card
With DIGIC II and an improved CF card writing process, data writing is
about 3.5 times faster*than with the EOS 10D.
*With a Canon 512 MB (Super High-speed) CF card
2) Image Processing
(1) White balance feature
• White balance correction
This is a digital color filter that works like an LB
(light balancing) filter or cc (color compensating)
filter.
Both 1. Blue/amber bias and 2. Magenta/green
bias can be set up to ±9 levels.
General Information
6
Fig. 001 CMOS sensor (actual size)
Fig. 002 Recording quality
selection screen
Table 002 Recording Quality and Pixels
Fig. 003 WB correction/BKT screen
8.20 megapixels
2.0 megapixels
4.3 megapixels
8.20 megapixels
Recorded Pixels
(Approx.)
RAW
Small
Medium
Large
Recording Quality

• White balance bracketing (WB-BKT)
In addition to the EOS 10D's blue/amber bias correction, the EOS 20D
provides the magenta/green bias adjustment that works like a cc (color
compensating) filter. As with the EOS 10D, three images are generated with
one shot. WB-BKT can also be used in combination with white balance
correction.
• Auto/Preset white balance
With DIGIC II, AWB is more stable at high ISO speeds and the color
temperature information is sent when the built-in flash or SL580EX is fired.
As a result, the flash white balance and AWB performance with flash in
dark environments are improved.
(2) Processing parameters
• Parameter 1 for vivid and sharp images
In addition to the EOS DIGITAL REBEL/EOS
300D DIGITAL's Parameter 1, the EOS 20D also
has the Parameter 2 which is the EOS 10D's
standard setting. Parameter 1 is set
automatically in Basic Zone modes. In Creative
Zone modes, Parameter 1 or 2 can be selected.
• Monochrome mode
In addition to Parameter 1 and 2 and Set 1, 2,
and 3, there is a new Monochrome mode. You
can set the contrast and sharpness up to 5
levels, filter effects (none, yellow, orange, red,
green), and toning (none, sepia, blue, purple,
green).
<Filter effects>
This obtains almost the same result
as filters for conventional black-and-
white photos. The colors in the image
that are the same or similar to the
filter's color will look brighter. And
secondary colors in the hue circle will
look darker.
<Toning>
This is like toning conventional
black-and-white prints with chemicals
to apply a certain color tinge. This is
done digitally to obtain a similar effect.
General Information
7
Fig. 004 Parameter 1 settings
Table 003 Sample Filter Effects
Filter Effect
Ye: Yellow The blue sky looks more natural,
white clouds look more real.
Or: Orange The blue sky looks darker, and
the sunset looks more brilliant.
R: Red The sky looks quite dark, and fall
leaves look crisp.
G: Green Skin tones and lips will look more
subdued. Tree leaves look crisp.
No filter effects and no toning Filter effect: Red Toning: Sepia
Fig. 005 Filter effects and toning sample

Note that one positive (+) level of the Sharpness setting is equal to twice the
sharpness level of the EOS 10D. This produces more crisp and clear
images.
(3) ISO Speed
• ISO speed setting range
Like the EOS 10D, the EOS 20D's ISO speed range is ISO 100, 200, 400,
800, 1600, and H: 3200. Note that the ISO speed extension is now set with
a Custom Function (C.Fn-08) instead of with the menu.
• ISO auto
The basic ISO auto setting has been changed to ISO 400. This obtains
good image quality and avoids camera shake. The background scene behind
the subject in a flash photo will also look brighter.
(4) Noise reduction
The EOS 20D already obtains better image quality than with the EOS 10D.
To improve image quality of long exposures even more, a Custom Function
for long exposure noise reduction is provided. When C.Fn-02-1 is set, noise
reduction processing will be executed for exposures 1 sec. or longer. Note that
the noise reduction processing will take the same time as the exposure time.
3) Shooting Functions
(1) Autofocus
• AF sensor
The camera has a newly-developed, 9-point AF
sensor (CMOS). The center AF point is a high-
precision, cross-type sensor sensitive to f/2.8 lenses
(vertical line-sensitive at f/2.8, vertical line-sensitive at
f/5.6, and horizontal line-sensitive at f/2.8). The eight
other AF points are sensitive to f/5.6.
Since each AF point is optimized for the imaging
element size, the AF point layout is more inward than
the EOS 10D's. However, the nine AF points
make the subject coverage larger. Also, as shown
in Fig. 007, there are four AF points which are
near a golden section point.*They help to
improve the composing of the shot.
*Golden section: Picture composition deemed to have the
most aesthetic and stable aspect ratio (1:1.1618). When the
picture is divided into nine sections, the four intersections
all have a vertical : horizontal aspect ratio of 1:1.5. If you
use one of the four AF points close to a golden section point
to cover the subject, the composition will look more balanced.
Thanks to the new AF sensor, focusing in low light has improved by 1
stop compared to the EOS 10D. The brightness range required for focusing
is now EV -0.5 to 18.
The AF speed is faster than the EOS 10D's. The predictive AF
General Information
8
Fig. 006 AF sensor

 



 

Fig. 007 point positions

performance is about the same as the EOS 10D's. With an EF 300mm
f/2.8L IS USM lens, it can focus track a subject approaching at a speed of
up to 50 kph up to about 8 meters away.
• AF point selection
The AF point is manually selected with the Multi-
controller on the back of the camera as shown in Fig. 008.
The Multi-controller can be pushed in eight directions as
well as down at the center. First press the AF point
selector, then operate the Multi-controller as shown in Fig.
009. If you push the Multi-controller in the direction of the
current AF point, it will switch to automatic AF point
selection. You can also use the Main Dial/Quick
Control Dial to select the AF point (the looping sequence
is different from previous EOS D-SLRs).
Also, C.Fn-13-1/2 enables you to select the AF point directly with the
Multi-controller or dial without having to first press the AF point selector.
Since the Multi-controller enables a quick and direct way to select the AF
point, the Assist button has been eliminated.
(2) Drive
• Continuous shooting speed
Thanks to the CMOS sensor's faster reading of
signals, a high-speed mirror driving system, and
DIGIC II, the maximum continuous shooting
speed is 5 shots/sec. despite having more
megapixels than the EOS 10D.
• Max. burst
Recording quality Large/Fine: Approx. 23 shots*, RAW: 6 shots
*When Canon 512MB CF card (Super High-speed) is used
Note: Due to the shooting condition, development condition and the CF card type, the number
of JPEG image max. burst may vary.
General Information
9
Fig. 008 Multi-controller
Multi-controller Main Dial/Quick Control Dial
Automatic
selection
Fig. 009 AF point selection method
Table 004 Continuous Shooting Speed
(Max. shots/sec.)
3.5
5.0
5.0
AI SERVO Non-USM
USM
ONE SHOT / MF

(3) Shutter
The camera has a newly-developed, APS-C-dedicated,
compact, high-speed shutter. With shorter shutter blade
edges, the shutter curtain speed is faster. This enables a
top shutter speed of 1/8000 sec. and X-sync at 1/250
sec. The shutter durability also surpasses that of the
EOS 10D (about 20).
(4) Exposure control
The shooting modes, basic features, and metering
sensor are the same as the EOS 10D's. The default increment for the
exposure setting has been changed to 1/3 stop. (This can be changed to 1/2
stop with C.Fn-06-1.)
(5) Viewfinder
Improved eyepiece optics enable a viewfinder magnification of 0.9x. The
focusing screen is a Precision Matte screen developed to make manual
focusing easier. The differences between the Precision Matte screen, the New
Laser Matte screen found in the EOS 10D, and the Laser Matte screen found
in the EOS-1D are shown below.
[Focusing ease]: New Laser Matte < EOS 20D < Laser Matte
[Viewfinder brightness]: New Laser Matte > EOS 20D > Laser Matte
The white balance correction indicator has been added to the viewfinder
information display.
(6) Built-in flash
When the built-in flash or an EX-series
Speedlite is used, E-TTL II autoflash takes
effect for high-precision and stable flash
exposures.
Thanks to an improved fresnel lens, the
flash coverage matches the 17mm focal length
even when the Guide No. (GNo. 13, ISO
100 in meters) remains the same as before.
Also, the built-in flash now uses a pop-up arm. The distance between the
optical axis and the center of the built-in flash is 18.6 mm longer than with
the EOS 10D. This reduces the incidence of red eye and reduces the chances
of the lens obstructing the flash coverage.
General Information
10
Fig. 011 Mode Dial Fig. 012 Metering sensor Fig. 013 Metering zones
Fig. 014 Built-in flash
Fig. 010 Shutter unit

(7) Compatibility with EF-S lenses
Since the camera has the same mechanism as the EOS DIGITAL
REBEL/EOS 300D DIGITAL, it is compatible with EF-S lenses.
4) Image playback
•Single image
While a single image is displayed, pressing the
Info button will now display the image without
the information as shown in Fig. 015.
5) Design
(1) Awesome-looking for an aura of high performance
Even though the EOS 20D boasts better
image quality and more high-end features
than the EOS 10D, it is smaller and lighter.
The width, height, and depth are
respectively 5.7 mm, 2 mm, and 3.5 mm
shorter than the EOS 10D. And the weight
is 105g lighter. If you look at the front of the
camera, the built-in flash looks more
compact. Also, the front cover surrounding
the lens mount has gentle curves to give a
compact and high-performance image as
well as a strong, high-end look.
Despite the smaller size, the grip surface
is still ample to provide excellent grip and
holding comfort. The camera also retains
the EOS 10D's "finger cut" shape around
the shutter button to make pressing the
shutter button comfortable.
(2) Refined interface--Multi-controller provided
The operation ease of EOS is retained. The Multi-controller is a new camera
control that can be pushed in 8 directions and at the center. It is for selecting
the AF point, magnifying the image during playback, and moving the
trimming outline for direct printing. It is a great improvement for operation
ease.
(3) Highly rigid magnesium-alloy body
Being well-received on the EOS 10D, the magnesium-alloy body has been
retained. The refined look and feel, high image quality, and many features
convey a high level of assurance to the user. The Canon logo relief with a
white filling adds to the camera's fine detail, making it very apt for a high-end
digital AF SLR. It spreads and promotes the high quality of the Canon brand.
General Information
11
Fig. 016 Size comparison
Fig. 015 Single image playback
(no image information)

6) Startup time
Thanks to the DIGIC II, an improved CMOS sensor, a revamped startup
sequence, etc., the startup time has been shortened to approx. 0.2 sec. (EOS
10D's startup time: Approx. 2.2 sec.)
When Power Switch is set from Off to On, and startup is completed as SW-1 is
On (ready to shoot).
7) Operation ease
The camera retains the basic operation ease of the EOS
10D and the priority on shooting. The major differences in
the operation ease are as follows:
(1) Multi-controller provided
Note: Used for selecting the AF point, setting the WB correction/BKT, and
moving the outline box for image trimming during direct printing.
(2) Power switch integrated with Quick Control Dial ON
switch
Note: Three positions: 1. Power OFF, 2. Power ON and Quick Control Dial OFF, 3. Power ON and
Quick Control Dial ON.
(3) Assist button eliminated.
(4) Scroll orientation switch button eliminated
8) Menu functions
The basic operation method (Quick Control Dial and
Main Dial) is the same as the EOS 10D's scrolling
system.
The EOS 20D has the tab (icon + color) of the current
menu displayed on the upper left of the screen. Also,
the upper right indicates what happens when you press
the JUMP button. This is newly added.
The function that prevents shutter release when there
is no CF card installed is now a menu setting instead of
a Custom Function
setting. This will prevent
you from forgetting to
install a CF card even
when you use a Basic
Zone mode.
After continuous
shooting, you can still use
the menu even while the
data is being written to the
CF card.
General Information
12
Fig. 017 Power switch
Fig. 018 Menu screen (Shooting)
Quality Protect Auto power off
Red-eye on/off Rotate Auto rotate
Beep Print Order LCD Brightness
Shoot w/o card Auto Order Date/Time
AEB Review time File numbering
WB SHI FT/BKT Language
Custom WB Video system
Color temp. Communication
Color space Format
Parameters Custom Functions(C.Fn)
Clear settings
Sensor clean.
Firmware Ver.*
Shooting Playback Setup
Table 005 Menu Functions

9) Customization
Table 006 shows the EOS 20D's new Custom Functions added to the EOS
10D's. Note that page 54 lists all the Custom Functions.
10) Camera direct printing
As with the EOS 10D, the EOS 20D is compatible with PictBridge, CP Direct,
and Bubble Jet Direct. It also enables DPOF direct printing. The basic
specifications of direct printing are the same as the EOS-1D Mark II's. And with
the EOS 20D, improved data transmission architecture enabled faster printing
with Canon BJ printers using PictBridge direct print function.
11) Interface
Since DIGIC II has been incorporated, the camera has USB 2.0 Hi-Speed to
enable high-speed image transfers from the camera to a personal computer.
12) Power source and shooting capacity
The camera can be powered by Battery Pack BP-511A/514/511/512. The EOS
20D's battery grip can use BP-511A/514/511/512 or size-AA batteries.
With a fully-charged BP-511A, the EOS 20D can take approx. 1,000 shots at
20ºC or 750 shots at 0ºC with no flash.
The date/clock backup battery has been switched to CR2016. The backup
battery is placed in the battery chamber like with the EOS DIGITAL REBEL/EOS
300D DIGITAL.
13) Dimensions and weight
Dimensions: 144 (W) ×105.5 (H) ×71.5 (D) mm
Weight: 685 g
General Information
13
Table 006 New Custom Functions
C.Fn-02 Noise reduction of long exposures Works with shutter speeds 1 sec. or longer. Noise reduction
requires the same time as the exposure time.
C.Fn-08 ISO speed extension Moved from EOS 10D's menu setting.
C.Fn-13 AF point selection method Enables the AF point to be selected directly with the Multi-
controller or Quick Control Dial/Main Dial.
C.Fn-14 E-TTL II autoflash system When set to 1: Averaged flash exposure, the entire image will
be averaged for autoflash.
C.Fn-18 Append original image verification
data
When set to 1: Yes, the original image verification data will be
appended automatically.

2.2 Accessories
1) Battery Pack BP-511A
Battery pack with a 1390mAh capacity (approx. 26% larger
than the BP-511). The exterior color has been changed from
brown to gray. And as shown in Fig. 020, the battery cover
has a little hole whose orientation can be used to remind you
whether the battery has been recharged or not.
2) BATTERY GRIP BG-E2
EOS 20D-dedicated, L-shaped battery grip with vertical
camera controls. It can accommodate two BP-511A (BP-
511/512) battery packs or six size-AA batteries fitted in the
battery magazine. Besides alkaline batteries, Ni-MH
batteries can also be used.
3) EF-S 17-85mm f/4-5.6 IS USM
To be marketed at the same time as the EOS 20D, this
newly-developed lens best suits the EOS 20D. Featuring
an Image Stabilizer and a short back focal distance, it
can also be attached to the EOS DIGITAL REBEL/EOS
300D DIGITAL. Its focal length is equivalent to 27-
136mm in 135 format. Only the USM type will be
available.
General Information
14
Fig. 019 BP-511A
Fig. 021 BATTERY GRIP
BG-E2
Fig. 020 Battery cover
Fig. 022 EF-S 17-85mm

4) SL580EX
Successor to Speedlite 550EX. It features a high
output with Guide No. 58 (at ISO 100 in meters). It is
greatly improved with color temperature information
transmission, zooming to match the imaging element
size, faster recycling time, flash coverage for 14mm,
improved firing control, AF-assist beam compatible with
all AF systems, easier operation, and a new external
power source.
5) Semi-Hard Case EH17-L
Can accommodate the camera even when an EF-S 17-
85mm f/4-5.6 IS USM or EF 24-85mm f/3.5-4.5 USM is
attached. Semi-hard case enabling quick shooting.
Page 63 lists the lenses that can also fit in the case.
6) Wide Strap EW-100DGR
Wide neck strap that
comes with the EOS 20D
(eyepiece cover included).
2.3 Software for EOS 20D
The same software bundled with the EOS-1D Mark II will be provided.
General Information
15
Fig. 023 SL580EX
Fig. 024 Semi-Hard Case
Fig. 025 Wide Strap