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.NEX-3N test data on DxO Mark T3i test data on DxO Mark
Excellent image quality; Good grip; Full HD video recording; Swiveling LCD; Very fast autofocus; HDMI output.
Slow frame rate for sports shooting; Tendency to overexpose in bright sunlight; Live View AF is slow; No microfocus adjustment.
Excellent image quality for an entry-level mirrorless; User interface ideal for consumers stepping up from point-and-shoots; Speedy and accurate autofocusing; Zoom lever on body; Tremendous value.
Lack of hot shoe or accessory port limits more advanced shooting; No electronic viewfinder; Performance lags behind previous model, especially on burst shooting speed.