Panasonic Leica DG 100-400mm II vs Panasonic Lumix G 100-300mm f/4-5.6 II

Both are Micro Four Thirds mount zooms for telephoto — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.

Last verified 2026-06-21 · Micro Four Thirds mount · prices change — check the retailer

Spec	Panasonic Leica DG 100-400mm II	Panasonic Lumix G 100-300mm f/4-5.6 II
Focal length	100-400mm	100-300mm
Max aperture	f/4-6.3	f/4-5.6
Type	zoom	zoom
Coverage	Micro Four Thirds	Micro Four Thirds
Mount	Micro Four Thirds	Micro Four Thirds

Which should you buy?

• the Panasonic Leica DG 100-400mm II covers 100-400mm and the Panasonic Lumix G 100-300mm f/4-5.6 II covers 100-300mm — pick the range that matches what you shoot
• the Panasonic Lumix G 100-300mm f/4-5.6 II covers Micro Four Thirds (also works on APS-C bodies); the Panasonic Leica DG 100-400mm II is Micro Four Thirds-only — it won't fill a full-frame sensor

Where to buy

Check the Panasonic Leica DG 100-400mm II price on Amazon →

Check the Panasonic Lumix G 100-300mm f/4-5.6 II price on Amazon →

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FAQ

What's the difference between the Panasonic Leica DG 100-400mm II and the Panasonic Lumix G 100-300mm f/4-5.6 II?
The Panasonic Leica DG 100-400mm II is 100-400mm f/4-6.3 zoom, Micro Four Thirds; the Panasonic Lumix G 100-300mm f/4-5.6 II is 100-300mm f/4-5.6 zoom, Micro Four Thirds. Both fit the Micro Four Thirds mount.

Do the Panasonic Leica DG 100-400mm II and Panasonic Lumix G 100-300mm f/4-5.6 II fit the same camera?
Yes — both are Micro Four Thirds mount lenses, so they fit OM System (Olympus) and Panasonic Lumix G Micro Four Thirds bodies. Note the Panasonic Leica DG 100-400mm II is Micro Four Thirds-only and won't fill a full-frame sensor.

More Micro Four Thirds comparisons: OM System M.Zuiko 100-400mm f/5-6.3 IS vs Panasonic Lumix G 100-300mm f/4-5.6 II · OM System M.Zuiko 17mm f/1.8 vs Panasonic Leica DG 15mm f/1.7 · Olympus M.Zuiko 45mm f/1.8 vs OM System M.Zuiko 75mm f/1.8 · Panasonic Lumix G 20mm f/1.7 II vs Panasonic Leica DG 15mm f/1.7 · all Micro Four Thirds lenses · all comparisons