The new OM System 50-200mm F2.8 telephoto zoom is the brand's second pro 'white' lens, with full-frame-beating features and performance.

source https://www.techradar.com/cameras/camera-lenses/forget-full-frame-om-systems-latest-telephoto-zoom-proves-that-micro-four-thirds-is-a-top-choice-for-macro-and-wildlife-photography