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.SX50 test data on DxO Mark FZ300 test data on DxO Mark
Cameras with longer battery life can take more photos before exhausting their batteries.
50x optical zoom with whopping 24-1200mm-equivalent reach; Excellent image quality for its class; 2.8-inch vari-angle LCD; Ergonomic design and controls; Improved image stabilization and Zoom Framing Assist; Shoots RAW; Full 1080p HD video.
Poor low-light AF performance; Image quality deteriorates at ISO 800 and above; Sluggish cycle times; Below average battery life.
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.