Start-up is respectable. The autofocus is quick even when finding faces, and rarely needs to hunt around, even in low light. The automatic white balance is also capable, although occasional confusion over indoor light sources may make it worth setting up a shortcut to the manual white balance option to your buttons.
There are three continuous modes. The normal mode shoots full-resolution 10-megapixel images and manages 1 shot every two seconds. The high speed mode manages a much more creditable 4 frames per second, but only at 2 megapixels. A compromise between speed and resolution might have been preferable, but that's a minor quibble. The continuous flash mode is misleadingly named, as it's actually just one flash with three pictures taken.
Images look crisp and sharp. There's a warmth to colours, especially portraits, and we were happy with the exposure metering. Some of the common compact camera problems appear, like a tendency to blow out highlights in high contrast shots. But purple fringing is barely noticeable, and noise is present but not too intrusive even up to ISO 400. In low light things and at higher ISO speeds, noise is a problem, but this is to be expected.
The Exilim EX-Z100 is another success for Casio. Its understated style complements accessible controls and a large screen, while an above-average lens and useful features take care of the business end. Those looking for more manual control might prefer the Samsung L830, while those seeking better low-light performance could go for the Fujifilm FinePix F50fd. But really, we just can't fault Casio these days.
Edited by Jason Jenkins
Additional editing by Shannon Doubleday