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.E-PL7 test data on DxO Mark J2 test data on DxO Mark
Cameras with more dynamic range allow you to take photos with dramatic differences in highlight and shadow areas while retaining detail in both.
Think of a brilliant sunset on a rocky beach: Bright sunset in the background, with dark rocks in the foreground. High dynamic range means more of the extremes will be faithfully reproduced.
Dynamic range test data courtesy of DxO Mark.E-PL7 test data on DxO Mark J2 test data on DxO Mark
Excellent image quality for its class including very good ISO performance; Improved performance and ergonomics over the E-PL5; LCD tilts 180 degree downward for easier selfies; Upgraded 3-axis IS system.
No built-in flash (but a small add-on flash is included); No built-in EVF; Default colors somewhat muted; Somewhat quirky menu system.