The range of Olympus Compact System Cameras is based around a micro 4/3rds sensor.
All models employ high-speed autofocus, fast frame rates and there is a great range of compact zoom and prime lenses produced by Olympus and Panasonic as well as third party manufacturers.
The Olympus range splits in to two areas - the OM-D models all have a built in high-quality electronic viewfinder as well as a large LCD or OLDE rear screen. The PEN series models have just a rear screen with some having the option of an add-on viewfinder.
Olympus image quality is outstanding and the range of 'Art Filters' available allows you to create great image effects straight out of camera.