Monday 31 October 2011

Canon PowerShot S100 review: TechRadar labs data

Canon PowerShot S100 review: TechRadar labs data: Canon PowerShot S100 review: TechRadar labs data

Our test of the Canon PowerShot S100 is on the way, but in the meantime we would like to share the resolution chart images and the noise and dynamic range results.

The Canon PowerShot S100 was announced back in September and is the direct update to the Canon PowerShot S95. The major updates have been the inclusion of the new Digic 5 processor and GPS.

Initial results from the labs data show that the Canon PowerShot S100 handles noise exceptionally well for a compact camera, with results better than the Nikon Coolpix P7100, Canon PowerShot G12 and Olympus XZ-1. Dynamic range performance is also good and while marginally behind the Nikon Coolpix P7100, Canon PowerShot G12 and Olympus XZ-1 the results are still good for this size of camera.

The Canon PowerShot S100 will be available in November, with an RRP of £439

Resolution charts

As part of our image quality testing for the Canon PowerShot S100, we've shot our resolution chart.

If you view our crops of the resolution chart's central section at 100% (or Actual Pixels) you will see that, for example, at ISO 100 the Canon PowerShot S100 is capable of resolving up to around 22 (line widths per picture height x100) in its highest quality JPEG files.

Examining images of the chart taken at each sensitivity setting reveals the following resolution scores in line widths per picture height x100:

Canon powershot s100 resolution iso 100

Canon powershot s100 resolution iso 80

ISO 80, score: 22 (see full image)

Canon powershot s100 resolution iso 100

ISO 100, score: 22 (see full image)

Canon powershot s100 resolution iso 200

ISO 200, score: 22 (see full image)

Canon powershot s100 resolution iso 400

ISO 400, score: 22 (see full image)

Canon powershot s100 resolution iso 800

ISO 800, score: 22 (see full image)

Canon powershot s100 resolution iso 1600

ISO 1600, score: 20 (see full image)

Canon powershot s100 resolution iso 3200

ISO 3200, score: 18 (see full image)

Canon powershot s100 resolution iso 6400

ISO 6400, score: 16 (see full image)

Noise and dynamic range

These graphs were produced using data generated by DXO Analyzer.

We shoot a specially designed chart in carefully controlled conditions and the resulting images are analysed using the DXO software.

Signal to noise ratio

A high signal to noise ratio (SNR) indicates a cleaner and better quality image.

Canon powershot s100 signal to noise ratio

JPEG images from the Canon PowerShot S100 show good results for signal to noise ratio, beating those produced by the Nikon Coolpix P7100, Olympus XZ-1 and the Canon PowerShot G12. This graph shows that even at the top end of the sensitivity range noise is kept under control.

For a full explanation of what our resolution charts mean, and how to read them please click here to read the full article.

Dynamic range

Canon powershot s100 dynamic range

This chart indicates that the Canon PowerShot S100's JPEGs compare well against the Nikon Coolpix P7100, Olympus XZ-1 and Canon PowerShot G12. The graph illustrates a similar jump in dynamic range as the Canon PowerShot G12 which shares the same sensor.

For more more details on how to interpret our test data, check out our full explanation of our noise and dynamic range tests.


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