Olympus-branded 100-400mm (same as OM System ID 2320), 800mm equivalent super-telephoto for MFT.
The Olympus M.Zuiko Digital ED 100-400mm f/5-6.3 IS is the Olympus-branded version of the OM System super-telephoto zoom previously enriched as ID 2320, covering 200-800mm equivalent with IS and MSC autofocus for MFT. The Olympus branding reflects pre-corporate-transition naming.
The 200-800mm equivalent coverage provides extraordinary super-telephoto reach leveraging MFT's 2x crop factor. The built-in IS works with body IBIS for combined stabilisation essential at these extreme focal lengths, and the weather-sealed construction handles outdoor shooting conditions.
Build quality includes weather sealing for outdoor confidence with tripod collar for stable mounting. The MFT format's compact advantage makes 800mm equivalent reach genuinely portable compared to full-frame equivalents at similar focal lengths.
This Olympus-branded listing is identical to the OM System ID 2320 — same lens, same specification. The 800mm equivalent reach with IS provides unique super-telephoto capability for the MFT system regardless of branding.