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.
GX7 test data on DxO Mark P7700 test data on DxO MarkMuch improved, sleeker camera design doesn't mimic the competition; Sharp 3-inch vari-angle LCD screen swivels to the side, letting you compose shots from difficult angles; Brighter lens performs better in low light; Fast burst mode; Full HD movies.
Some photographers will miss having an optical viewfinder; Slower autofocus and single-shot cycle times when capturing RAW images; Shallow buffer; No one-touch video button.
Sharp retro design and solid build; High resolution, tiltable electronic viewfinder and LCD touchscreen monitor; Competitive still image quality; Very good video quality, recording Full HD at frame rates up to 60p; Fast autofocusing and all-around performance; Robust Wi-Fi and NFC capabilities, including remote shooting when paired with a smart device
Weak built-in flash; No external mic or headphone jack for video recording; Some poor results when shooting in Creative Panorama mode
