Released March 2025

A compact and lightweight super-telephoto zoom lens with a maximum focal length equivalent to 1600mm (200-800mm equivalent in 35mm format), equivalent to 200-800mm on its own. Mount: Micro Four Thirds mount. Focal length: 100-400mm (35mm equivalent: 200-800mm). Maximum aperture: f/5.0-6.3. Filter diameter: 72mm. [ED100400F5063II] ED100400F5063II Released March 2025
High optical performance throughout the zoom range. This lens offers a wide range of focal lengths, ideal for a variety of bird photography scenarios, from flocks of birds to close-ups of a single bird, capturing even its feathers. It delivers excellent imaging performance throughout the entire range.
Lens construction for high image quality. It uses four ED lens elements to reduce color bleeding, a common issue with super-telephoto lenses. The Super HR (Super High Refractive index) and HR (High Refractive index) lenses deliver exceptional image quality with sharp, clear images across the entire zoom range. The ZERO (Zuiko Extra low Reflection Optical) coating also reduces ghosting and flare, ensuring clear image quality even in adverse conditions such as backlight.
Maximum focal length equivalent to 1600mm (when used with the M.ZUIKO DIGITAL 2x Teleconverter MC-20) This lens is compatible with the separately sold M.ZUIKO DIGITAL 1.4x Teleconverter MC-14 and M.ZUIKO DIGITAL 2x Teleconverter MC-20. Using the MC-20 allows for a maximum focal length equivalent to 1600mm, allowing you to capture distant subjects in close-up. Capture natural bird activity from a greater distance without stressing the birds. Powerful telemacro photography. The minimum focusing distance is 1.3m across the entire zoom range, enabling close-up photography with a maximum magnification of 0.57x (60.3x45.3mm at the telephoto end). This makes it possible to capture insects, such as butterflies and dragonflies, that tend to fly away if you get too close. The lens supports depth stacking, a key feature of OM SYSTEM cameras, allowing you to capture subjects with a shallow depth of field, even in telemacro photography, with the entire subject in focus. Additionally, when combined with the optional M.ZUIKO DIGITAL 1.4x Teleconverter MC-14, it achieves a maximum magnification of 0.81x, and with the M.ZUIKO DIGITAL 2x Teleconverter MC-20, it achieves a maximum magnification of 1.15x. High-precision gyro sensor delivers superior image stabilization. The high-precision gyro sensor and optimized image stabilization algorithm enable 5-axis sync image stabilization. The lens boasts a maximum of 7.0 stops of image stabilization, approaching the top class of OM SYSTEM lenses. Combined with its compact and lightweight design, this lens makes handheld shooting in the super-telephoto range even more comfortable.
Enables stable framing even at super-telephoto focal lengths equivalent to 800mm. The image stabilization function not only reduces camera shake, but also proves effective when framing to keep the subject within the frame. Keeping the subject stable within the frame can be extremely difficult, especially when shooting handheld with a super-telephoto lens. The M.ZUIKO DIGITAL ED 100-400mm f5.0-6.3 IS features 5-axis sync image stabilization, making it easy to frame and keep the subject within the frame.
A compact and lightweight system that's easy to handle. The lens's compact size and light weight significantly reduces the burden of traveling to bird-spot photography locations and traveling in search of the birds you're targeting. Its lightweight, handheld handling makes it easy to capture unexpected encounters with wild birds or to capture panning shots of birds in flight. It boasts unparalleled mobility compared to full-frame systems.
Reliable dust- and splash-proof design. The dust-proof design, featuring airtight seals in various locations, achieves IPX1 splash-proof performance. It prevents dust and water from entering, allowing for worry-free use even in harsh environments. When photographing wild birds in nature, the weather conditions are not always stable. Having a rain cover ready or covering it when it starts to rain allows you to focus on capturing the image without having to worry about keeping your equipment dry.
Fluorine coating for excellent oil and water repellency. Like the OM SYSTEM's top-of-the-line telephoto zoom lens, the M.ZUIKO DIGITAL ED 150-400mm F4.5 TC1.25x IS PRO, the front element is coated with a fluorine coating. Even if the lens gets dirty while shooting in rainy, snowy, or dusty environments, you can easily remove it with a blower or lens cloth, allowing you to continue shooting.
The newly designed lightweight tripod mount allows the tripod mount to be removed even with the camera and lens attached. The tripod mount is compatible with Arca-Swiss clamps. The new design allows the tripod mount to be removed even with the camera and lens attached, and the lens foot has been designed to be easy to hold, taking into consideration the tripod attachment point.
Knowing the ecology of wild birds is the first step to good photography. To take good wild bird photos, it is important to understand their ecology and carefully observe their behavior. However, wild birds are often missed with the naked eye, so binoculars are an essential item to increase your opportunities to encounter and photograph them. An IC recorder is also recommended as a tool for learning about wild bird ecology through their calls. [Accessories] Lens hood (LH-76D), lens cap (LC-72D), lens rear cap (LR-2), instruction manual, warranty card ■ Specifications ■

Focal length (35mm equivalent): 100-400mm (equivalent to 200-800mm) Lens construction: 21 elements in 15 groups Water-resistant/dust-proof mechanism: ‌ Protection class 1 (IPX1): Best suited for use in combination with an OM SYSTEM water-resistant body. / Dustproof mechanismAngle of view: 12° - 3.1°Minimum focusing distance: 1.3m (full zoom range)Number of aperture blades: 9 (circular aperture)Maximum aperture ratio: F5.0 (at 100mm) - F6.3 (at 400mm)Minimum aperture ratio: F22In-lens image stabilization: Yes (VCM mechanism)Image stabilization performance...Image stabilization performance: With 5-axis sync image stabilization: 7.0 stops (at 100mm) / 5.5 stops (at 400mm)With lens image stabilization: 4.5 stops (at 100mm) / 4.5 stops (at 400mm)Filter size: 72mmDimensions (maximum diameter x length): Φ86.4 x 205.6mmWeight: 1125g (excluding tripod mount lens cap, lens rear cap, and lens hood)□Manufacturer's warranty period: 1 year