In creating a digital SLR whose image quality is second-to-none, we made sure that nothing would impede your photographic success, not even the smallest of particles. With Olympus ' exclusive Supersonic Wave Filter, the dust and micro particles that may settle on the imager of the E-1 and block light are blocked and can be quickly and easily disposed of so you never have to give them a second thought.

Automatic operation upon powering up the camera and during pixel mapping, the Supersonic Wave Filter causes an ultra-discrete high-speed vibration that literally makes the dust and/or other particles fall off so they can't block the imager.