Canon PowerShot SX20 IS Review

Image Quality
All of the sample images in this Review were taken using the 12 megapixel JPEG setting, which gives an average image size of around 3.5Mb.
The Canon PowerShot SX20 IS produced images of above average quality during the review period. The Canon PowerShot SX20 IS's main drawback in terms of image quality is noise, with ISO 400 showing some noise, blurring of detail and slight colour desaturation. The noise and loss of detail get progressively worse as you go from ISO 800 to the fastest 1600 setting.
The Canon PowerShot SX20 IS handled chromatic aberrations quite well with some purple fringing effects appearing in high contrast situations. The 12 megapixel images were just a little soft straight out of the camera at the default sharpen setting and either require some further sharpening in an application like Adobe Photoshop, or you should increase the in-camera sharpening level.
The night photograph was excellent, with the maximum shutter speed of 15 seconds allowing you to capture enough light for most situations. Macro performance is a stand-out highlight, allowing you to focus as close as 0cms away from the subject, although there is a lot of lens distortion and shadowing at such a close distance. The built-in flash worked well indoors, with no red-eye and good overall exposure. Anti-shake is a feature that sets this camera apart from its competitors and one that works very well when hand-holding the camera in low-light conditions or when using the telephoto end of the zoom range.
Noise
There are 6 ISO settings available on the Canon PowerShot SX20 IS. Here are some 100% crops which show the noise levels for each ISO setting.
ISO 80 (100% Crop) |
ISO 100 (100% Crop) |
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ISO 200 (100% Crop) |
ISO 400 (100% Crop) |
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ISO 800 (100% Crop) |
ISO 1600 (100% Crop) |
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Focal Range
The Canon PowerShot SX20 IS's 20x zoom lens has a massive focal range, as illustrated by these examples:
28mm |
560mm |
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Sharpening
Here are two 100% crops which have been Saved as Web - Quality 50 in Photoshop. The right-hand image has had some sharpening applied in Photoshop. The out-of-the camera images are just a little soft at the default sharpening setting. You can change the in-camera sharpening level if you don't like the default look.
Original (100% Crop) |
Sharpened (100% Crop) |
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Chromatic Aberrations
The Canon PowerShot SX20 IS handled chromatic aberrations quite well during the review, with some purple fringing present around the edges of objects in high-contrast situations, as shown in the examples below.
Example 1 (100% Crop) |
Example 2 (100% Crop) |
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Macro
The Canon PowerShot SX20 IS allows you to focus on a subject that is just 0cms away from the camera. The first image shows how close you can get to the subject (in this case a compact flash card). The second image is a 100% crop.
Macro Shot |
100% Crop |
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Flash
The flash settings on the Canon Powershot SX20 IS are Auto, Manual Flash On / Off, Slow Sync Speed and Red-eye Reduction. These shots of a white coloured wall were taken at a distance of 1.5m.
Flash Off - Wide Angle (28mm) |
Flash On - Wide Angle (28mm) |
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Flash Off - Telephoto (560mm) |
Flash On - Telephoto (560mm) |
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And here are some portrait shots. As you can see, neither the Flash On or the Red-eye-Reduction settings caused any red-eye.
Flash On |
Flash On (100% Crop) |
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Red-eye Reduction |
Red-eye Reduction (100% Crop) |
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Night
The Canon Powershot SX20 IS's maximum shutter speed is 15 seconds, which is great news if you're seriously interested in night photography. The shot below was taken using a shutter speed of 15 seconds at ISO 80. I've included a 100% crop of the image to show what the quality is like.
Night Shot |
Night Shot (100% Crop) |
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Anti Shake
The Canon Powershot SX20 IS has an anti-shake mechanism, which allows you to take sharp photos at slower shutter speeds than other digital cameras. To test this, I took 2 handheld shots of the same subject with the same settings. The first shot was taken with anti shake turned off, the second with it turned on. Here are some 100% crops of the images to show the results. As you can see, with anti shake turned on, the images are much sharper than with anti shake turned off. This feature really does seem to make a difference and could mean capturing a successful, sharp shot or missing the opportunity altogether.
Shutter Speed / Focal Length | Anti-Shake Off (100% Crop) | Anti-Shake On (100% Crop) |
1/4th sec / 70mm | ![]() |
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1/4th sec / 70mm | ![]() |
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iContrast
DRO is Canon's solution to improve shadow detail in photos taken in contrasty light. The selectable settings are Off and On. The examples show the effect of the different settings.
Off |
On |
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My Colors
The Canon Powershot SX20 IS offers 10 My Color preset effects that you can use to change the look of your images, and you can also create your own Custom Color.
Off |
Vivid |
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Neutral |
Sepia |
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BW |
Positive Film |
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Lighter Skin Tone |
Darker Skin Tone |
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Vivid Blue |
Vivid Red |
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Vivid Green |
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Sample Images
This is a selection of sample images from the Canon PowerShot SX20 IS camera, which were all taken using the 12 megapixel JPEG setting. The thumbnails below link to the full-sized versions, which have not been altered in any way.
Sample Movie & Video
This is a sample movie at the quality setting of 1280 x 720 pixels at 30 frames per second. Please note that this 17 second movie is 52.3Mb in size.
As of February 2025, we are no longer providing full size sample images or videos for download.
Please contact us if you have any feedback on our new policy.
Product Images
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Front of the Camera |
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Front of the Camera / Lens Extended |
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Front of the Camera / Pop-up Flash |
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Isometric View |
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Isometric View |
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Rear of the Camera |
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Rear of the Camera / Image Displayed |
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Rear of the Camera / Turned On |
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Rear of the Camera / Main Menu |
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Rear of the Camera / Function Menu |
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Rear of the Camera / Flip-out Screen |
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Rear of the Camera / Flip-out Screen |
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Rear of the Camera / Flip-out Screen Closed |
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Top of the Camera |
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Bottom of the Camera |
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Side of the Camera |
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Side of the Camera |
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Front of the Camera |
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Front of the Camera |
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Memory Card Slot |
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Battery Compartment |
Conclusion
A year on from the SX10 IS, the new SX20 model adds a couple of key improvements to an already appealing design, but doesn't quite offer enough to take the super-zoom crown.
The SX20 IS is virtually identical to its predecessor, with the only major additions being the new HD movie recording and an "upgrade" to 12 megapixels. The former is successful, the latter less so. Being able to shoot high-definition video with stereo sound and the ability to make full use of the 20x zoom is a real attraction and something that not many other cameras currently offer. Unfortunately the story isn't so rosy with regards to still images, with noise and loss of fine detail first appearing at ISO 400 rather than ISO 800 as on the SX10. It seems that the move to more megapixels has compromised the overall image quality at higher ISO speeds, limiting this camera's ability in low-light environments.
Other key features have been sensibly retained - the tilt-and-swivel LCD, dedicated record button for instant video clips, clear electronic viewfinder and external hotshoe all makes this an appealing digicam for the keen hobbyist, especially with a full range of manual shooting modes on offer. The only fly in the ointment is the continued absence of a RAW file format, pushing would-be buyers to the G11, currently the only Canon compact that offers RAW shooting. Several rival super-zoom cameras also support RAW, most notably the Panasonic FZ38 and Olympus SP-570 UZ, so there are other alternatives in the same category if this is a must-have feature.
Despite the less than stellar still images, lack of RAW, slight price increase and few real upgrades over the previous model, the Canon PowerShot SX20 IS remains a likeable and easy-to-use camera. It's still a solid and reliable option for both the uninitiated moving up to a bridge model for the first time, and those stepping down momentarily from a DSLR who are looking for a model as a back up, or perhaps to supplement their existing lens range, but in a more portable and user-friendly format.
Ratings (out of 5) | |
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Design | 4 |
Features | 4.5 |
Ease-of-use | 4 |
Image quality | 3.5 |
Value for money | 3.5 |
Specifications
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Zoom |
¹ Depending on the image size selected. |
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AF Modes |
¹ Some settings limit availability |
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Manual Power Adjustment |
¹ Not all functions of the flash are supported. |
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External Flash |
¹ Not all functions of the flash are supported. |
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Modes |
¹ Recording pixels fixed at 1600 x 1200 (ISO 3200 Mode) and 1824 x 1368 (Low Light Mode). |
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Continuous Shooting |
¹ Under conditions where the flash does not fire. |
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Movie Length |
¹ The following Speed Class memory cards are required for maximum record time: 1280 x 720, 30fps Speed Class 4 or above. 1920 x 1080, 30fps Speed Class 6 |
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Battery life |
¹ Using the batteries and memory card format supplied with the camera (where included), except where indicated. |
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Flash |
¹ Not all functions of the flash are supported. |
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Operating Environment |
¹ 0 – 35 °C when NB-3AH is used |
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* Standard Output Sensitivity / Recommended Exposure Index. |
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According to ISO 12232:2006 (20th April 2006) which specifies the method for assigning and reporting ISO speed ratings for digital still cameras. |
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All data is based on Canon standard testing methods (according to CIPA Standards) except where indicated. |
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Subject to change without notice. |
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