Canon PowerShot A540 comparison

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Product name
Canon PowerShot A540
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Canon PowerShot A540

Canon PowerShot SD850 IS
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Canon PowerShot SD850 IS

Canon PowerShot A720 IS
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Canon PowerShot A720 IS

Price $350.56 $141.85 to $196.39 $299.99 to $388.62 $166.95 to $399.99 $304.42
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Average user rating
Release date March 07, 2006
The Bottom Line Solid image quality plus manual and automated exposure controls make the Canon PowerShot A540 a nice low-cost option for snapshooters and photo enthusiasts. The Canon PowerShot A590 IS's manual exposure controls and surprisingly sharp pictures make it a great choice for almost anyone looking for a sub-$200 shooter. The Canon PowerShot SD 850 IS has just about everything you'd want in a point-and-shoot. Unless you plan to shoot primarily in low light, the Canon PowerShot A720 IS makes a solid, affordable camera that produces great-looking pictures. Despite excessive noise at higher ISOs, Canon's A570 IS offers an excellent value and an impressive feature set in its category.
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Features
Lens aperture F/2.6-5.5
F/2.6-5.5
F/2.8-5.5
F/2.8-4.8
F/2.6-5.5
Equivalent 35mm focal length 35 - 140 mm
35 - 140 mm
35 - 140 mm
35 - 210 mm
35 - 140 mm
Optical zoom 4 x
4 x
4 x
6 x
4 x
Light sensitivity ISO 200
ISO 800
ISO auto
ISO 400
ISO 80
ISO 100
ISO 200
ISO 800
ISO auto
ISO 400
ISO 80
ISO 1600
ISO 100
ISO 200
ISO 800
ISO auto
ISO 400
ISO 80
ISO 1600
ISO 100
ISO 200
ISO 800
ISO auto
ISO 400
ISO 80
ISO 1600
ISO 100
ISO 200
ISO 800
ISO auto
ISO 400
ISO 80
ISO 1600
ISO 100
Display (projector) technology TFT active matrix
TFT active matrix
TFT active matrix
TFT active matrix
TFT active matrix
Memory storage capacity 16 MB
32 MB
32 MB
16 MB
16 MB
Video input type Digital camera
Digital camera
Digital camera
Digital camera
Digital camera
Flash memory form factor MultiMediaCard
MultiMediaCardplus
SD Memory Card
Info unavailable SD Memory Card
Digital zoom 4 x
4 x
4 x
4 x
4 x
Battery technology Info unavailable Alkaline
Lithium ion
Info unavailable Alkaline
Weight 6.3 oz
6.2 oz
5.8 oz
7.1 oz
6.2 oz
Effective sensor resolution 6,000,000 pixels
8,000,000 pixels
8,000,000 pixels
8,000,000 pixels
7,100,000 pixels
Still image format JPEG
JPEG
JPEG
JPEG
JPEG
Display (projector) diagonal size 2.5 in
2.5 in
2.5 in
2.5 in
2.5 in
Manual focus Automatic
Manual
Automatic
Manual