Maximum 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.Stylus 1 test data on DxO Mark FZ300 test data on DxO Mark
High-quality constant aperture 10.7x zoom lens with excellent performance; Very affordable for what it delivers; Ergonomically sound with a solid, professional feel; Highly customizable; Fast overall performance; Built-in EVF and tilting touchscreen LCD; Automatic lens cap.
Smaller sensor size than 1-inch and Micro Four Thirds models mean far lower image quality as ISO tops 800; 28mm eq. is not as wide as some competitors and not overly suited for landscape photography.
Good image quality for its class; Improved ergonomics; Impressive new EVF and rear display; Versatile 24-600mm equivalent f/2.8 lens; Faster autofocus performance; 4K video and 4K Photo features.
Bulky camera body; Excessive default noise reduction applied at lower ISOs; Continuous autofocus performance is inconsistent.