Color depth refers to the number of unique colors that a sensor can faithfully capture. Cameras with better color depth will demonstrate smoother transitions from one color to the next, and avoid "banding" in areas with subtle shading. (Blue skies are an example of where you might see color banding.)
More color depth is generally better, but you'll struggle to notice a difference between two cameras with less than 1 bit of difference. Color depth above 22 bits is considered excellent.
Want to learn more? Head over to our full glossary entry on color depth
Color depth test data courtesy of DxO Mark.
K-7 test data on DxO Mark XZ-2 test data on DxO MarkMaximum effective ISO is an estimate of the highest sensitivity at which a camera can capture excellent quality photos.
Cameras with higher effective ISO will be better choices for indoor photography, night shooting, and indoor sports photography, especially if you intend to make large prints.
You can learn more at our glossary entry.
Maximum effective ISO test data courtesy of DxO Mark.
K-7 test data on DxO Mark XZ-2 test data on DxO MarkCameras with longer battery life can take more photos before exhausting their batteries.
Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable
Good image quality for its class; Fast, bright f/1.8-2.5 i.ZUIKO 4x zoom lens; Dual-purpose front Control Ring lets you select aperture or focus manually; three-inch articulating LCD touch-screen monitor.
Pricier than many enthusiast compacts; Image detail starts dropping off at ISO 800 and noise becomes problematic at ISO 3200; Lens cover pops off as zoom lens extends, when you turn the camera on.
