You asked
Olympus om d e m10 mark ii vs olympus om d e m5 mark ii?
Both are 16.1-megapixel Micro Four Thirds cameras announced in 2015, so the sensor won't decide it. The choice comes down to what you need around the sensor.
Pick the E-M10 Mark II if you want the easiest way into the OM-D line. It has in-body five-axis stabilisation and is cheap used, which is why I point most beginners to it.
Pick the E-M5 Mark II if you shoot outdoors in rough weather or want a screen you can angle any way. It's weather sealed, has a fully articulating screen, and offers a tripod High Res Shot mode.
Both take the same lenses, so a good starting pair for either is the Olympus M.Zuiko 25mm f/1.8 for a fast, small prime, and the Olympus M.Zuiko 12-45mm f/4 PRO if you want one pro-grade zoom to carry. Not sure how a lens will frame? The focal length converter will show you.
Written by Claude from this site's pages.