OM System M.Zuiko ED 100-400mm f/5.0-6.3 IS Telephoto Zoom Lens

The OM System M.Zuiko ED 100-400mm F5.0-6.3 IS is a telephoto zoom lens built for Micro Four Thirds mirrorless systems, offering a 200-800mm full-frame equivalent focal range. Designed for wildlife, sports, and distant subjects, it balances long reach with optical performance in a weather-sealed package.

It features built-in image stabilization to allow handheld use with less shake, and a Movie & Still Compatible (MSC) autofocus system for fast, quiet focus in both still and video shooting. The lens includes a focus limiter, AF/MF switch, and supports optional teleconverters (MC-14 and MC-20) for extended reach.

With a close focusing distance of 1.3 m across the zoom range and a maximum magnification of 0.29× at the tele end (0.09× at the wide end), it also functions well for tele-macro applications. Its sealed construction protects against dust and moisture for rugged field use.

Key Features

• Focal Range: 100–400 mm (200–800 mm equivalent)
• Maximum Aperture: f/5.0 (wide) to f/6.3 (tele)
• Image Stabilization: In-lens IS (~3 EV) for handheld shooting
• MSC Autofocus: Fast, quiet AF suitable for stills and video
• Weather Sealing: Splashproof, dustproof design
• Teleconverter Compatibility: Supports MC-14 & MC-20
• Focus Limiter & AF/MF Switch: Useful for faster focusing control

Technical Specifications

• Minimum Aperture: f/22
• Lens Construction: 21 elements in 15 groups
• Closest Focusing Distance: 1.3 m (4.27 ft)
• Maximum Magnification: 0.09× at 100 mm / 0.29× at 400 mm
• Angle of View: 12° to 3.1°
• Aperture Blades: 9, rounded diaphragm
• Filter Thread: 72 mm