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.

JPEG images from the Canon Powershot SX30 IS have a lower signal to noise ratio than comparable cameras across the sensitivity range.

Dynamic range

Canon powershot sx30 is dynamic range

Canon Powershot SX30 IS dynamic range

This chart indicates that the Canon Powershot SX30 IS's dynamic range is higher than all but the Sony HX100V up to a sensitivity of ISO 400, where it falls offsteeply.

ABOUT THE AUTHOR

Head of Testing, Cameras

Angela (Twitter, Google+, website) is head of testing for Future's photography portfolio, writing and overseeing reviews of photographic equipment for Digital Camera, Photography Week, PhotoPlus, NPhoto and Practical Photoshop as well as TechRadar's cameras channel. Angela has a degree in photography and multimedia and prior to joining Future in October 2010 was Amateur Photographer magazine's technical editor.