Canon Powershot A640 Review

Date: November 27th 2006
Author: Gavin Stoker

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Page 1
Introduction / Features
Page 2
Ease of Use
Page 3
Image Quality
Page 4
Sample Images
Page 5
Design
Page 6
Specifications
Page 7
Conclusion

Specifications

IMAGE SENSOR

Type 1/1.8” CCD
Effective Pixels Approx.10.0M
Colour Filter Type Primary Colour

IMAGE PROCESSOR

Type DIGIC II with iSAPS technology

LENS

Focal Length 7.3 – 29.2 mm (35mm equivalent 35-140 mm)
Zoom Optical 4x. Digital approx. 4x (with Digital Tele-converter approx. 1.4x or 2.3x and Safety Zoom ) . Combined approx. 16x
Maximum f/number f/2.8-f/4.1
Construction 8 elements in 7 groups (2 aspherical elements)

FOCUSING

Type TTL
AF System / Points 9-point AiAF, 1-point AF (Any position is available or fixed centre)
AF Point Selection Manual selection using FlexiZone AF/AE
AF Lock On/Off Selectable
AF Assist Beam Yes
Manual Focus Yes
Closest Focusing Distance 1cm

EXPOSURE CONTROL

Metering Modes Evaluative, Centre-weighted average, Spot (centre or linked to focusing frame)
AE Lock Locked when shutter button is pressed half way
Exposure Compensation +/- 2 EV in 1/3 stop increments
ISO Speed Equivalent AUTO, High ISO Auto, 80, 100, 200, 400, 800

SHUTTER

Speed 15 – 1/2,500 sec
(Available shutter speeds vary depending on the shooting mode)

WHITE BALANCE

Type TTL
Settings Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Underwater, Custom

VIEWFINDER

Viewfinder Real-image zoom, optical viewfinder

LCD MONITOR

Monitor Vari-angle 2.5” P-Si TFT, approx. 115,000 pixels
Coverage 100%

FLASH

Modes Auto, Manual Flash On / Off
Slow Sync Speed Yes
Red-eye Reduction Yes
Flash Exposure Compensation +/- 2 EV in 1/3 stop increments
Flash Exposure Bracketing Yes
Flash Exposure Lock Yes
Built-in Flash Range 45cm - 4.2m (W) / 3m (T) (at ISO AUTO equivalent)
External Flash Canon's High Power Flash HF-DC1

SHOOTING

Modes Auto, Program AE, Shutter priority AE, Aperture priority AE, Manual, Custom, Portrait, Landscape, Night Scene, Stitch Assist, Movie, Special Scene (Night Snapshot, Kids & Pets, Indoor, Foliage, Snow, Beach, Fireworks, Underwater, Color Accent, Color Swap)
Photo Effects My Colors (My Colors Off, Vivid, Neutral, Sepia, Black & White, Lighter Skin Tone, Darker Skin Tone, Positive Film, Custom Color)
Drive Modes Single, Continuous, Self-Timer
Continuous Shooting Approx.1.5 fps (until memory card becomes full)

RECORDING PIXELS / COMPRESSION

Image Size (L) 3648 x 2736, (M1) 2816 x 2112, (M2) 2272 x 1704, (M3) 1600 x 1200, (S) 640 x 480, (W) 3648 x 2048 (Postcard Date Imprint) 1600 x 1200
Compression Superfine, Fine, Normal
Movies (L)640 x 480, 30/15fps
(M)320 x 240, 30/15fps (S)160 x 120, 15fps
Movie Length Up to 1GB or 1 hour (L and M). Up to 3 min (S)

FILE TYPES

Still Image Type JPEG compression, (Exif 2.2 [Exif Print] compliant) / Design rule for Camera File system, Digital Print Order Format [DPOF] Version 1.1 compliant
Movies AVI [Motion JPEG compression + WAVE (monaural)]
Sound Files WAVE (monaural)

DIRECT PRINT

Canon Printers Canon SELPHY Compact Photo Printers and PIXMA Printers supporting PictBridge (ID Photo Print, Fixed Size Print and Movie Print supported on SELPHY CP & ES printers only)
PictBridge Yes

OTHER FEATURES

My Camera Start-up image and camera sounds customisation
Sound Memo Up to 60 sec per image
Intelligent Orientation Sensor Yes
Histogram Yes
Playback Zoom Approx. 2x - 10x
Self Timer Approx. 2 or 10 sec. or Custom
Menu Languages English, German, French, Dutch, Danish, Finnish, Italian, Norwegian, Swedish, Spanish, Simplified Chinese, Chinese (traditional), Japanese, Russian, Portuguese, Korean, Greek, Polish, Czech, Hungarian, Turkish, Thai, Arabic, Ukrainian, Romanian

INTERFACE

Computer USB 2.0 Hi-Speed (Mini-B, PTP)
Other A/V output (PAL/NTSC)

MEMORY CARD

Type Secure Digital (SD) Card or Secure Digital High-Capacity (SDHC) Card or MultiMediaCard (MMC),
32MB Memory card supplied

SUPPORTED OPERATING SYSTEM

PC Windows 98SE / Me / 2000 SP4 / XP / XP SP1-2
Macintosh OS X v10.2 - 10.4

SOFTWARE

Browsing & Printing ZoomBrowser EX / ImageBrowser
Other PhotoStitch, RemoteCapture
Drivers TWAIN (Windows 98 / 2000), WIA (Windows Me)

POWER SOURCE

Batteries 4x Size-AA Alkaline or NiMH Batteries(NB4-200) (Alkalines supplied)
Battery Life Approx. 280 shots (with supplied batteries)
Approx. 500 shots (with optional Canon NB-2AH batteries)
Approx. 20 hours. playback (with supplied batteries)
Approx. 20 hours. playback (with Canon NB-2AH batteries)
AC Power Supply Optional, AC Adapter CA-PS500

ACCESSORIES

Case Soft Case DCC-300
Waterproof / Weatherproof Case Waterproof Case (40m) WP-DC8 , Waterproof Case Weight WW-DC1
Lenses Conversion Lens Adapter, LA-DC58F
Tele-Converter 1.75x TC-DC58N,
Wide converter 0.7x WC-DC58N
Flash High Power Flash HF-DC1
Power Supply & Battery Chargers Battery Charger Kit CBK4-300, Ni-MH Batteries NB4-300, AC Adapter Kit ACK600

PHYSICAL SPECIFICATIONS

Operating Environment 0 - 40 C, 10 - 90% humidity
Dimensions 109.4 x 66.0 x 49.1mm (excluding protrusions)
Weight (body only) Approx. 245g
 
Zoom
Depending on the image size selected
Digital zoom available for still image and standard movie modes only. Optical zoom may not be available during movie recording.
Continuous Shooting
Large/Fine with LCD monitor off
Depending on memory card speed / capacity
Movie Length
Depending on memory card speed / capacity
Battery Life
Based on the CIPA Standard and using the batteries and memory card format supplied with the camera, except where indicated
 
Page 1
Introduction / Features
Page 2
Ease of Use
Page 3
Image Quality
Page 4
Sample Images
Page 5
Design
Page 6
Specifications
Page 7
Conclusion

DIWAPhotographyBLOG is a member of the DIWA organisation. Our test results for the Canon Powershot A640 have been submitted to DIWA for comparison with test results for different samples of the same camera model supplied by other DIWA member sites.

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