The Pentax Optio Z10’s image quality is below average. The camera’s main drawback is noisy images, with the relatively slow speed of ISO 200 showing some noise and blurring of detail. The noise gets progressively worse as you go from ISO 400 to ISO 800 and finally to the completely unusable 1600 and 3200 settings.
The Pentax Optio Z10 handled chromatic aberrations quite well with limited purple fringing effects appearing only in high contrast situations.