Olympus 100-400mm f/5-6.3 M.Zuiko ED IS MSC Lens for MFT (Micro Four Thirds), Black {72} with Tripod Collar

200-800mm equivalent super-telephoto zoom built for Micro Four Thirds.

The M.Zuiko 100-400mm f/5-6.3 IS delivers a 200-800mm equivalent reach on any Micro Four Thirds body, and with the optional 2.0x teleconverter that extends to a 1600mm equivalent. That kind of reach in a 1,120g lens with a 205.7mm barrel is a straightforward argument for the MFT crop factor. The optical formula runs 21 elements across 15 groups, with four ED elements keeping chromatic aberration in check and two super HR elements contributing to edge-to-edge resolution across the full zoom range. ZERO coating handles flare and ghosting.

Handheld shooting at extreme telephoto is practical here. Built-in IS pairs with the AF/MF switch, Focus Limiter, and Zoom Lock directly on the barrel, so you can adapt to a moving subject without digging through menus. The minimum focusing distance holds at 1.3m across the entire zoom range, giving 0.57x magnification (35mm equivalent) for tele-macro work, useful for insects or small wildlife without flushing the subject.

Weatherseal on the barrel and MSC autofocus make this a field-ready option for photographers who work in conditions where gear takes a beating. At 72mm filter thread, it accepts standard glass without stepping rings. For MFT shooters who want serious reach without the weight of a full-frame equivalent, this lens makes the system case on its own.

Who It's For

Wildlife photographers get the most direct benefit: 200-800mm equivalent reach with a 1.3m minimum focus distance means the lens works from distant birds in flight down to a dragonfly perched on a reed. Bird-in-flight shooters working with OM-D bodies will appreciate the Focus Limiter switch keeping AF from hunting through the full range. Travel photographers can carry this lens and a second body without exceeding airline carry-on limits, given the 2.46 lb weight. Macro-leaning nature photographers gain a 0.57x magnification option without swapping lenses, covering insects and botanical detail in the same outing as long-distance shots.

Key Features

• 200-800mm equivalent super-telephoto zoom for Micro Four Thirds
• 21 elements across 15 groups with four ED and two super HR elements
• Built-in image stabilization with barrel-mounted IS switch
• MSC autofocus with Focus Limiter for fast-moving subjects
• 1.3m minimum focusing distance with 0.57x magnification for tele-macro work
• Hermetically sealed barrel with ZERO coating for flare control
• Compatible with 1.4x and 2.0x teleconverters up to 1600mm equivalent
• 1,120g weight with 72mm filter thread and tripod collar

FAQ

What's the actual reach of this lens on a Micro Four Thirds body?

200-800mm equivalent, and it extends to 1120mm or 1600mm equivalent with the optional 1.4x or 2.0x teleconverter.

Can you focus close enough for macro work at 400mm?

Yes - minimum focusing distance is 1.3m across the entire zoom range, giving 0.57x magnification (35mm equivalent) for tele-macro subjects like insects or small wildlife.

How does the autofocus perform on fast-moving subjects?

MSC autofocus with inner focusing lenses handles moving subjects well, and the Focus Limiter switch on the barrel lets you restrict AF range to speed up acquisition without menu diving.

Is this lens weather-sealed?

The barrel is hermetically sealed against moisture and dust, making it suitable for field work in variable conditions.

What kind of optical corrections does this lens include?

Four ED elements control chromatic aberration, two super HR and two HR elements deliver edge-to-edge sharpness, and ZERO coating reduces flare and ghosting across the full zoom range.

How much does it weigh and what's the filter thread?

1,120g with a 72mm filter thread, so it accepts standard glass without stepping rings.

What controls are on the barrel?

AF/MF switch, Focus Limiter, Image Stabilization switch, and Zoom Lock - all handheld-friendly without menu access.