Question: are all olympus lenses interchangeable?
Answer: Answer: Yes! The new E-System lenses and flashes are compatible with all E-System cameras. All Olympus Zuiko Digital™ Four Thirds lenses are interchangeable; so, whether you have an E-300, an E-3, or any other Olympus digital SLR, you can use any of the lenses in the Zuiko Digital™ lens family with your camera.