That's the case with the Canon PowerShot SD40. Canon took its supersmall PowerShot SD30, dropped in a 7-megapixel sensor and new image processor, threw in a few handy accessories, and called it a day.
The camera is small and stylish, using the same body as its predecessor, the SD30. Its candy bar-size form is all metal and comes in a variety of oddly named colors, such as Olive Grey and Precious Rose. At less than an inch thick and weighing only 4.3 ounces, the SD40 fits easily into almost any pocket.
Alas, small size means small features in the SD40's case. The viewfinderless camera has only a 1.8-inch LCD, and it uses a relatively narrow angle of view for the 38mm-to-90mm-equivalent lens, the same as the SD30. Beyond the higher resolution, the SD40's most notable improvement over the SD30 is its new Digic III image processor. Canon claims the Digic III processor increases image quality, performance, and battery life, but we didn't notice any significant improvement over the SD30. If anything, performance was a bit sluggish, though that might be simply because of the camera's higher resolution. The SD40's sensor can also bump up its sensitivity to ISO 1,600, a fair improvement over the SD30's ISO 400 ceiling. Finally, the camera features SDHD support, allowing the use of 4GB and larger SD memory cards.
Though it doesn't have many new features, the SD40 includes some extra accessories the SD30 lacked. The camera now comes with a small cradle to rest it on while charging, plus an infrared remote control. The cradle's a nice home for the camera, but the remote has more limited uses than we typically see; it works on the camera only while it's on the cradle and only for reviewing, uploading, or printing images. The remote can't be used for shooting.
We recorded some lackluster performance in the tiny shooter. After taking 1.3 seconds to wake up, we could snap a shot once every 2.3 seconds. With the onboard flash enabled, that wait more than doubled to 5.2 seconds. Shutter speed was acceptable but not breathtaking; the shutter lagged 0.5 second in bright light and 1.4 seconds in dim light. Burst mode was very slow, sustaining only 1.2 frames per second.
Image noise is the SD40's biggest problem. Speckles and grain became visible at ISO 100 and rendered photos almost unusable at ISO 800 and above. The camera's sensor may be able to hit ISO 1,600, but at that setting, photos look like they're covered by a thin layer of sand. Colors were faithfully captured, though the automatic white balance tended to give indoor lighting a marked yellow pallor.
The Canon PowerShot SD40 proves that sometimes beauty is only skin-deep. Its small and stylish body is pleasing to look at, but its sluggish performance and heavy image noise make it a poor choice for a regular shooter. If you really want a small and stylish digital camera, you might want to check out Sony's Cyber Shot DSC-T10, or Casio's Exilim EX-Z850 instead. Both are slender, similarly priced cameras without the performance and image issues of the SD40.
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Typical shot-to-shot time | |
Time to first shot | |
Shutter lag (typical) |
Product Specifications:
Product Description:
Canon PowerShot SD40 Digital ELPH - Digital camera
Product Type:
Digital camera - Compact
Dimensions (WxDxH):
3.8 in x 0.9 in x 1.8 in
Color:
Noble blue
Flash Memory:
16 MB
Supported Flash Memory:
MultiMediaCard
,
SD Memory Card
Sensor Resolution:
7.1 megapixels
Shooting Modes:
Frame movie mode
Focus Adjustment:
Automatic
Min Focus Range:
11.8 in
Focal Length:
6.3 mm - 14.9 mm
Red Eye Reduction:
Yes
Microphone:
Microphone - Built-in - Mono
Viewfinder:
None
Display:
LCD display - TFT active matrix - 1.8 in - Color
Supported Battery:
1 x Li-ion rechargeable battery - 760 mAh ( Included )
Product Basic Spec:
Video input type:
Digital camera
Digital Zoom:
4 x
Sensor resolution:
7.1 megapixels
Optical sensor size:
1/2.5 in
Optical sensor type:
CCD
Light sensitivity:
ISO 80
,
ISO 100
,
ISO 200
,
ISO 400
,
ISO 800
,
ISO 1600
,
ISO auto
Gross sensor resolution:
7,400,000 pixels
Still image format:
JPEG
Lens Aperture:
F/3.2-5.4
Optical Zoom:
2.4 x
Camera Flash:
Built-in flash
Exposure metering:
Spot
,
Evaluative
,
Spot AF area
,
Center-weighted
Exposure compensation:
±2 EV range, in 1/3 EV steps
Flash memory:
16 MB
Display type:
1.8 in LCD display
Battery type:
- Lithium ion
Weight:
3.7 oz