The M.ZUIKO DIGITAL ED 100-400mm F5.0-6.3 IS is a powerful yet compact super telephoto zoom lens for the Micro Four Thirds system. It is an outstanding choice for tourists in Japan interested in wildlife, birding, and capturing distant details, as it provides an incredible equivalent focal length range of 200mm to 800mm in 35mm format.
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Contact Jasumo Now →Despite its massive reach, this lens is designed to be highly portable and features a durable, splash-proof, and dustproof construction (IPX1). It includes in-lens Image Stabilization for clearer handheld shots and offers superb telemacro capability, making it a highly versatile tool for any long-distance subject.
This lens allows Micro Four Thirds users to achieve truly massive magnification, perfect for capturing elusive subjects like wild birds or distant vistas of Mount Fuji. The long focal length range covers everything from portrait-telephoto to extreme super-telephoto, providing flexibility across various shooting scenarios.
The M.ZUIKO DIGITAL ED 100-400mm F5.0-6.3 IS features an optical construction of 21 elements in 15 groups, including multiple specialized elements (4 ED, 2 Super HR, and 2 HR lenses) to effectively suppress chromatic aberration and ensure high-resolution images across the zoom range.
A key feature is the powerful in-lens Image Stabilization (VCM mechanism), providing up to 3 stops of compensation (CIPA standards). While it does not support 5-axis sync IS, the in-lens stabilization is crucial for handheld shooting at the extremely long 800mm equivalent focal length.
The lens maintains a minimum focusing distance of 1.3m across the zoom range, allowing for telemacro shooting with a maximum magnification equivalent to 0.57x, ideal for detailed close-ups from a safe distance. The lens comes with a removable tripod mount for stable shooting at max zoom and is protected by IPX1-equivalent sealing when paired with a splash-proof body.
| Feature | Specification |
| Focal Length (Actual) | 100-400mm |
| Focal Length (35mm Equiv.) | 200-800mm |
| Lens Construction | 21 elements in 15 groups |
| Maximum Aperture Ratio | F5.0 (at 100mm) – F6.3 (at 400mm) |
| Minimum Focusing Distance | 1.3 meters |
| Maximum Magnification (35mm Equiv.) | 0.57x (at Tele) |
| Filter Size | 72mm |
| Mass | 1,120g (excluding tripod mount) |
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The physical focal length is 100-400mm. Since the Micro Four Thirds sensor has a 2x crop factor, this lens provides an angle of view equivalent to a 200mm to 800mm lens on a full-frame camera, giving you exceptional reach.
If you attach the Olympus MC-20 (2x) teleconverter, the lens becomes equivalent to a 400mm to 1600mm lens in 35mm format. The maximum aperture will be reduced by two stops, making the new aperture range F10-F13, which requires bright daylight and possibly manual focus.
Due to the variable aperture and the extreme telephoto reach, this lens performs best in bright daylight. For low-light conditions, you will need to rely heavily on the 3-stop Image Stabilization, use a tripod, and potentially increase your camera’s ISO settings.
Telemacro shooting allows you to capture detailed close-up images (more than half life-size) without having to be physically close to the subject. This is ideal for photographing skittish insects or small, delicate subjects without disturbing them.
Some lens-body combinations can have communication or physical limitations. The note specifically advises that this lens does not work correctly with the Blackmagic Pocket Cinema Camera 4K model, though it should work fine with standard Olympus/OM SYSTEM and Panasonic Micro Four Thirds cameras.
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