Panasonic Leica 100-400mm f/4-6.3 DG Vario-Elmar Asph. Power O.I.S. Lens for MFT (Micro Four Thirds), Black {72} with Tripod Collar/Foot

200-800mm equivalent reach in a 985g Micro Four Thirds package.

On a Micro Four Thirds body, this 100-400mm lens lands at an effective 200-800mm field of view, giving wildlife and sports shooters reach that would require a far heavier and costlier setup in full-frame. The optical formula runs 20 elements across 13 groups, with aspherical elements and Nano Surface Coating working together to manage chromatic aberration and flare at the long end. Leica certification means the glass was held to a specific standard before it left the factory, not just branded after the fact.

Power O.I.S. handles hand-held shooting at extended focal lengths, and the lens supports Dual I.S. when paired with compatible Lumix bodies for added stability in lower light. The splash and dustproof construction holds up in field conditions where you cannot choose your weather. A rotating tripod collar ships in the box, which matters when you are working a monopod at 400mm and need portrait-to-landscape transitions without fighting the balance point. At 985g and 171.5mm long, this is a genuinely compact long telephoto by any standard, not just by Micro Four Thirds comparison.

Who It's For

Bird and wildlife photographers get 800mm equivalent reach with a package light enough to carry on a full-day hike, and the splash and dustproof build handles the conditions that kind of shooting demands. Travel photographers working with size and weight constraints will find the 985g total mass a real consideration against full-frame alternatives. Sports shooters working from the sidelines benefit from the rotating tripod collar and Power O.I.S. when moving between hand-held and supported positions quickly. Nature documentary videographers using compatible Lumix bodies get Dual I.S. support and lens-mounted AF/MF and O.I.S. switches for fast in-field adjustments.

Key Features

• 200-800mm equivalent reach on Micro Four Thirds crop
• Power O.I.S. with Dual I.S. compatibility on select bodies
• 20-element, 13-group optical formula with aspherical elements and Nano Surface Coating
• Splash and dustproof construction for field use
• Rotating tripod collar included in box
• 985g weight and 171.5mm length for genuine telephoto compactness

FAQ

What's the effective focal length on a Micro Four Thirds body?

200-800mm equivalent. Micro Four Thirds uses a 2x crop factor, so the physical 100-400mm becomes 200-800mm in full-frame terms.

Does this lens work with Dual I.S.?

Yes, when paired with compatible Lumix G mirrorless bodies. The lens has Power O.I.S. built in, and Dual I.S. combines that with in-body stabilization for additional hand-held stability at the long end.

What's included in the box?

The lens ships with a rotating tripod collar, which is essential gear when you're balancing a monopod at 400mm and need to pivot between portrait and landscape without fighting the weight.

How does splash and dustproof protection work?

The sealed construction holds up in field conditions when mounted on a compatible splash and dustproof Lumix body. The weather sealing is a system property, not just the lens alone.

What optical coatings manage flare and chromatic aberration?

Nano Surface Coating works with aspherical elements across 20 glass pieces in 13 groups to control aberration and reflections, particularly important at 400mm where those issues compound.

Is this a Leica lens or a Panasonic lens?

It's a Panasonic Lumix lens with Leica certification. Panasonic built it to Leica's optical standards before shipping, not simply applying the Leica name after manufacture.

What's the minimum focus distance?

4.27 feet (1.3 meters) from the sensor, measured at any focal length across the zoom range.