Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you’re buying the best. Find out more about how we test.
The signal to noise ratio is a scientific measure of the amount of random noise in a digital image. The higher the number the better because this means the level of noise is relatively low. We measure signal to noise in laboratory conditions using DxO Analyzer.
JPEG signal to noise ratio analysis: Noise is well controlled in JPEGs, with results on a par with or just ahead of those from rivals at lower sensitivities and a generally good performance with increased sensitivity, but a sharp drop after ISO 6400.
Raw (converted to TIFF) signal to noise ratio analysis: The raw files tell a very different story. Here, the A68's signal-to-noise ratio is consistently lower throughout the ISO range than the results from competing cameras.
Current page: Lab tests: Signal to noise ratioPrev Page Lab tests: Dynamic range Next Page Verdict
Apple releases emergency fix for three serious iOS and macOS bugs — update your Mac and iPhone now
Final Fantasy 7 Rebirth's creative director and producer are in disagreement over the use of the term "JRPG"
The new iOS 17 alarm tones are so good, you’ll look forward to waking up