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PowerShot A20

PowerShot A Series


Image Capture Device


1/2.7 in. charge-coupled device (CCD)

Total Pixels

Approx. 2.11 million

Effective Pixels

Approx. 2.02 million


Focal Length


Digital Zoom

Maximum 2.5x (Maximum 7.5x with optical zoom)

Focusing Range

Normal: 76cm (2.5 ft.) - infinity
Macro: 16 - 76cm (6.3 in. - 2.5 ft.)(Wide angle); 26 - 76cm (10.2 in. - 2.5 ft.)(Telephoto)

Autofocus System

TTL 3 point AiAF


Optical Viewfinder

Real-image optical zoom viewfinder

LCD Monitor

1.5-inch low-temperature polycrystalline silicon TFT color LCD

LCD Pixels

117,600 effective pixels

LCD Coverage

Approx. 80%

Aperture and Shutter

Maximum Aperture

f/2.8 - 4.8; 5.4mm (Wide angle) - 16.2mm (Telephoto) (35mm film equivalent: 35 - 105mm)

Shutter Speed

1 - 1/1500 sec.* 1 sec. in manual mode with the flash off or in slow synchro mode.* Noise reduction processing on speeds slower than 1/6 sec.

Exposure Control


ISO 100 equivalent (automatically raised to ISO 150 in low light)

Light Metering Method

Evaluative metering (linked to focusing point)

Exposure Control Method

Program AE; Exposure is locked once focusing is complete.

Exposure Compensation

+/-2 stops in 1/3-stop increments. (Manual mode only.)

White Balance

White Balance Control

TTL Auto/Pre-set (daylight, cloudy, tungsten, fluorescent)/Black & White


Built-in Flash

Red-eye reduction Auto/Auto/On/Off

Flash Range

Normal Mode: 76cm - 4.2m (2.5 - 13.8 ft.) (Wide angle), 76cm - 2.5m (2.5 - 8.2 ft.) (Telephoto)
Macro Mode: 26 - 76cm (10.2 in. - 2.5 ft.) (Wide angle/Telephoto)

Shooting Specifications

Shooting Modes

Auto/Manual/Stitch Assist/Playback

Self Timer

Shoots after approx. 10 sec.

Continuous Shooting

Approx. 2.5 images/sec (Large/ Fine mode, LCD monitor off)

Image Storage

Storage Media

CompactFlash Card (Type I)

File Format

JPEG (Design rule for Camera File system, DPOF compliant)

JPEG Compression Mode


Number of Recording Pixels

Large: 1,600 x 1,200 pixels; Medium: 1,024 x 768 pixels; Small: 640 x 480 pixels

Number of Recordable Images

Image data

Playback Specifications

Playback Modes File

Single image replay/Index replay (9 thumbnails)/Zoomed view (LCD monitor zooms images up to 2.5x)/Auto play/Printing with Card Photo Printer CP-10 (print image directly)


Computer Interface

USB (mini-B)

Video Out

Video output terminal (NTSC or PAL, selectable)

Power Supply

Four AA alkaline batteries or four AA rechargeable NiMH batteries
Compact Power Adapter CA-PS500

Power Source

Four AA alkaline batteries or four AA rechargeable NiMH batteries
Compact Power Adapter CA-PS500

Physical Specifications

Operating Temperature

0 - 40°C (32 - 104°F)

Operating Humidity

10 - 90 %

Dimensions (W x H x D)

110.3 x 71.0 x 37.6mm (4.3 x 2.8 x 1.5 in.) (excluding protrusions)


Approx. 250g (8.8 oz.) (excluding batteries and CF card)

Computer System Requirements

Mac Requirements

Hardware: Power Macintosh, PowerBook, iMac or iBook
OS: Mac OS 8.6 through 9.1, Quicktime 3.0 or higher
CPU: Power PC
Interface: USB - Cable connection via camera's USB port is limited to genuine Apple Computer brand models with a built-in USB interface (Power Macintosh NEW G3/G4, PowerBook G3/G4, iMac, iBook)
RAM: 20MB or more of application memory

PC Requirements

Hardware: IBM PC/AT compatible.
OS Windows 98 (including the Second Edition)/ Windows 2000/Windows ME.
CPU: Pentium 133 MHz or better.
Interface: USB - Cable connection via camera's USB port is limited to pre-installed Windows 98, Windows 2000 and pre-installed or upgraded Windows ME systems.
RAM: 32MB or more (Windows 98); 64MB or more (Windows 2000/Windows ME).

Compatible Supplies & Accessories

Canon offers a wide range of compatible supplies and accessories that can enhance your user experience with you PowerShot A20 that you can purchase direct. Scroll down to easily select items to add to your shopping cart for a faster, easier checkout. Visit the Canon Online Store



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† Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.

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