|Upon the arrival of a Canon PowerShot SX200IS test sample, it is tested in our DIWA Lab. The technical data from the rigorous tests are processed and translated into understandable data. Inside the lab, testing takes place in standardized circumstances. An environment in which cameras, both compact and system concepts can be compared without a problem. Besides that, the Canon SX200IS compact camera is extensively used in practice and evaluated as for operation and shooting in practice. This combination of lab tests and the testing in practice, results in a final conclusion that is carefully reviewed.|
|Color reproduction & White balance settings
The Canon PowerShot SX200IS has a fairly consistent and accurate color reproduction. The low ISO range up to 400 ISO shows a slightly deviating color reproduction, whereas the high ISO values excel with an accurate and very natural color reproduction. The measured values have been compared to the calibrated colors of the Gretag Macbeth Color Checker. The Canon SX200IS provides vivid colors without exaggerated saturation. The white balance is accurate too. Manual white balance is more than capable of filtering incandescent light effectively. If you want to benefit fully when it comes to the white balance of the Canon SX200IS, you may want to use the manual one. The auto white balance is slightly less effective in incandescent light; nevertheless, the manual setting will solve this problem.
Canon PowerShot SX200IS ISO sensitivity
The acclaimed specifications of the ISO values are similar to the actual sensitivity of the image sensor over nearly the entire ISO range. The measurements in the DIWA lab are used among other things, to determine the actual ISO sensitivities. Deviations of 20-25% are common, but in the case of the Canon PowerShot SX200IS we find an outstanding result. With an average of approximately 3.8% deviation, this Canon camera is clearly more accurate than the average camera. The entire ISO range shows an actual 4% higher sensitivity.
Canon SX200 IS signal/noise ratio
12 Megapixels on a compact camera virtually guarantees a one-way ticket into the danger zone when it comes to the signal/noise ratio. And this also goes for the Canon SX200IS Megazoom. Compared to its rival, the Canon PowerShot SX200IS performs the same up to and including ISO 400. With the higher ISO values, however, Canon show that they have a more effective grip on noise, despite the 12 Megapixels resolution. 800 and 1600 ISO do clearly suffer from noise, yet still provide a good result. It remains ever so important to expose accurately. When it comes to the dynamic range, Canon is in control, also at high ISO values. Canon is able to obtain a fine to excellent result over the entire ISO range, retaining details in the dark and light areas in a picture, an excellent achievement!
Canon PowerShot lens
The Canon PowerShot SX200IS is Canon's weapon to enter the battle with the successful TZ series cameras of Panasonic. The Panasonic TZ7 also features a 12x optical zoom, however; emphasis goes to more wide angle; 25mm compared to 28mm on the SX200 IS. DIWA tests revealed the TZ7's lens is of outstanding quality.
|We compared the results of the Canon PowerShot SX200 IS tests to those of the TZ7. And it turns out that Canon cannot surpass the TZ7 when it comes to sharpness. When working with the lens of the SX200IS camera, blur towards the edges is clearly more visible than when working with that of the TZ7, and in particular telephoto mode shows large differences. With the considerable blur towards the edges in telephoto, Canon truly drops a stitch. As for center sharpness, Canon is in control over the entire focal length.
Distortion & Vignetting
As expected, wide angle shows some distortion, however, this is hardly to not at all visible for the remaining focal lengths. The same goes for vignetting, which remains nicely under control, although visible every now and then in wide angle, though hardly to not at all in the remaining focal lengths. Compared to the Panasonic LUMIX TZ7, there are hardly any differences in this respect.
A problem that crops up frequently is chromatic aberration. An issue that shows through visible purple edges around subjects in a picture. In fact, chromatic aberration is an optical flaw of lenses and lens systems that is caused when light of different wavelengths is not refracted with the same intensity on lens surfaces. Most optimal would be that the light going through the lens comes together from one point into one point in the picture. In practice, it frequently happens that beams with different wavelengths end up in the picture in various spots. And it's on the edges of a picture where this effect is most noticeable.
Canon PowerShot test results
The effect of chromatic aberration is usually mainly solved by adjusting the lens optimally and working with lenses that consist of more than one lens with opposite chromatic features. However, this is quite an expensive solution. Another solution would be to correct chromatic aberration via the software inside the camera. Whether or not one of these two solutions have been used in the Canon PowerShot SX200 IS camera, remains unknown. We rely on the pictures taken in practice and the technical measurements of the DIWA Lab. And from all these tests, it turns out that the lens of the Canon SX200IS suffers rather strongly from chromatic aberration. In particular the center and, slightly less, the edges of wide angle suffer from this phenomenon. The remaining focal lengths also show signs of chromatic aberration. This certainly is a downer, especially since we know it doesn't have to be like that, considering the Panasonic DMC-TZ7 hardly, to not at all suffer from any chromatic aberration.