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Canon PowerShot A640 comparison

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Product name	Canon PowerShot A640	Canon PowerShot A650 IS	Canon PowerShot A630	Panasonic Lumix DMC-ZS3 (silver)	Canon PowerShot SX120 IS
Price	$899.99	$766.44	$399.00	$278.95 to $349.97	$199.00 to $268.99
CNET editors' rating	3.5 stars Overall score: 7.6 (3.5 stars)	3.5 stars Overall score: 7.6 (3.5 stars)	3.5 stars Overall score: 7.6 (3.5 stars)	3.5 stars Overall score: 7.5 (3.5 stars)	3.5 stars Overall score: 7.0 (3.5 stars)
Average user rating	3.5 stars	4.0 stars	3.5 stars	3.5 stars	3.5 stars
Release date	September 15, 2006		September 15, 2006	April 20, 2009	August 19, 2009
The Bottom Line	It's not great in low light, but the A640 has plenty of features photographers will love.	Performance issues aside, the Canon PowerShot A650 IS combines large, good-looking photos and a generous feature set into a fine midrange shooter.	Though it's not a great choice for low-light shooting, the Canon PowerShot A630 is a solid, feature-rich digital camera.	As long as you don't want much in the way of manual features, the Panasonic Lumix DMC-ZS3 is a very nice camera that can handle a variety of shooting situations.	Canon's SX120 IS pocket megazoom falls behind the competition in every aspect except photo quality.
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Lens aperture	F/2.8-4.1	F/2.8-4.8	F/2.8-4.1	F/3.3-4.9	F/2.8-4.3
Equivalent 35mm focal length	35 - 140 mm	35 - 210 mm	35 - 140 mm	25 - 300 mm	36 - 360 mm
Optical zoom	4 x	6 x	4 x	12 x	10 x
Light sensitivity	ISO 80 ISO 100 ISO 200 ISO 400 ISO 800 ISO auto	ISO 80 ISO 100 ISO 200 ISO 400 ISO 800 ISO 1600 ISO 3200	ISO 80 ISO 100 ISO 200 ISO 400 ISO 800 ISO auto	ISO 80 ISO 100 ISO 200 ISO 400 ISO 800 ISO 1600 ISO 3200 ISO auto ISO auto (1600-6400)	ISO 80 ISO 100 ISO 200 ISO 400 ISO 800 ISO 1600 ISO auto ISO 3200 (2Mpix)
Display (projector) technology	TFT active matrix	Low Temperature Poly-Silicon (LTPS)	TFT active matrix	TFT active matrix	TFT active matrix
Memory storage capacity	32 MB	32 MB	16 MB	Info unavailable	128 KB
Video input type	Digital camera	Digital camera	Digital camera	Digital camera	Digital camera
Flash memory form factor	MultiMediaCard	SD Memory Card	SD Memory Card	Info unavailable	SD Memory Card
Digital zoom	4 x	4 x	4 x	4 x	4 x
Weight	8.6 oz	10.6 oz	8.6 oz	7.2 oz	8.6 oz
Effective sensor resolution	10,000,000 pixels	12,100,000 pixels	8,000,000 pixels	10,100,000 pixels	10,000,000 pixels
Still image format	JPEG	JPEG	JPEG	JPEG	JPEG
Display (projector) diagonal size	2.5 in	2.5 in	2.5 in	3 in	3 in
Manual focus	Manual Automatic	Manual Automatic	Manual Automatic	Automatic	Manual Automatic
Full specifications	Full specifications	Full specifications	Full specifications	Full specifications	Full specifications
Buying choices	Amazon.com Marketplace $899.99 In stock: Yes Price from 1 CNET Certified store	Amazon.com Marketplace $766.44 In stock: Yes Price from 1 CNET Certified store	Amazon.com Marketplace $399.00 In stock: Yes Price from 1 CNET Certified store	Amazon.com $349.95 In stock: Yes Beach Camera $279.90 In stock: Yes B&H Photo-Video $349.95 In stock: Yes Prices from 10 CNET Certified stores	Beach Camera $199.00 In stock: Yes Newegg.com $199.00 In stock: Yes Buydig.com $199.00 In stock: Yes Prices from 16 CNET Certified stores
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