Olympus Zuiko Digital 90-250mm f/2.8 ED AF Lens for Four Thirds System (requires mount adapter for use on MFT){105}

This powerful super-telephoto zoom lens with large-aperture (fixed F stop type) is equivalent to 180-500mm on a 35mm camera. Only fixed focal super-telephoto lens could have provided wide-open F2.8 shots in the past, however, this lens provides F2.8 shots in entire zoom area. Therefore, it can give the best framing at once even if you are in the restrained shooting spot. The best choice for the nature and sports photographer. Luxurious three ED lenses are used to give the highest image quality with optimal resolution and contrast.

Directly compatible with E-System cameras. Compatible with Micro Four Thirds digital cameras (PEN\OM-D) through use of the MMF-2 or MMF-3 (Four Thirds Lens Adapter to Micro Four Thirds Lens Adapter). The MMF-3 is dust and splash proof for use with that type of lens on a dust and splash proof body. Note, AF performance may diminish as compared to being on an E-System body.