The OM System began by introducing the idea of functionality, for greater photographic mastery in every sense of the term. It went on, with the OM-2, to ensure total, real time exposure accuracy in every conceivable situation.

The OM-3 and OM-4 tackle the most outstanding problem keeping a barrier between the photographer's vision and the camera's vision. Instead of making exposure determination fully automatic and thus limiting the photographer's creativity. Multi Spot Metering assures that exposure judgments are creative - but with all the precision and convenience of electronics automation.

The OM System concept of functionality and ergonomic efficiency are further refined in the OM-3 and OM-4. They incorporate the experience of millions of OM System users. The result is the most versatile, durable and reliable OM cameras ever.