OM SYSTEM M.Zuiko Digital ED 100-400mm f/5-6.3 IS II Lens (Micro Four Thirds) Review

The OM System M.Zuiko Digital ED 100-400mm f/5-6.3 IS II is a second-generation super telephoto zoom for Micro Four Thirds cameras, delivering 200-800mm equivalent reach in a compact, weather-sealed package. Priced at $1,500, it sits as the flagship tele option for OM System and Panasonic shooters who need serious reach without the bulk and cost of full-frame equivalents. The lens features optical image stabilization, a removable rotating tripod collar, and a robust optical formula with Super HR and ED elements plus ZERO coating and fluorine protection on the front element. Its dual-purpose AF system is designed to handle both stills and video work.

For wildlife, sports, and bird photographers working in the Micro Four Thirds ecosystem, this lens represents the practical top end of native reach. The weather sealing and fluorine coating make it viable for field use, while the optical stabilization complements in-body systems for maximum shake reduction at extreme focal lengths. At this price point, it competes mainly with full-frame 150-600mm lenses that cost more and weigh significantly more, though those offer shallower depth of field and better low-light performance.