With a wealth of physical controls, the Canon PowerShot G5 X is aimed squarely at the enthusiast photographer. Callum McInerney-Riley tests it out
ISO sensitivity and Noise
At low ISO settings, the Canon PowerShot G5 X gives excellent images with plenty of detail and little noise. Increase the sensitivity to ISO 400 and a some noise starts to appear in the darker tones of the image, but you’re unlikely to see it appearing in prints. Indeed, files are still very usable at ISO 800, particularly if you’re prepared to shoot and process raw files. In comparison, Canon’s standard JPEG processing tends to blur away fine details, while struggling to suppress low-frequency green and purple colour blotching in the shadows. Stick with raw, though, and it’s only at ISO 1,600 that noise starts to have a significant impact on fine detail. At ISO 3,200 there’s a stronger drop in image quality, with shadow detail noticeably deteriorating, but it’s still fine for non-critical uses. However, the two highest settings give high noise levels and should be used only when there’s no other choice.
ISO sensitivity and noise – JPEG
The 100% crops below show the Canon PowerShot G5 X’s JPEG output at each ISO sensitivity setting
ISO sensitivity and noise – raw
The 100% crops below show the Canon PowerShot G5 X’s output using raw and Adobe Camera Raw at each ISO sensitivity setting