Panasonic Leica DG 100-400mm II vs OM System M.Zuiko 150-600mm f/5-6.3 IS

Both are Micro Four Thirds mount zooms for telephoto and wildlife — 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	OM System M.Zuiko 150-600mm f/5-6.3 IS
Focal length	100-400mm	150-600mm
Max aperture	f/4-6.3	f/5-6.3
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 opens wider (f/4-6.3) — brighter in low light and more background blur
the Panasonic Leica DG 100-400mm II covers 100-400mm and the OM System M.Zuiko 150-600mm f/5-6.3 IS covers 150-600mm — pick the range that matches what you shoot

Where to buy

Panasonic LUMIX Micro Four Thirds Camera Lens, Leica DG Vario-Elmar 100-400mm, F4.0-6.3 II ASPH., Power O.I.S. - H-RSA10

Panasonic Leica DG 100-400mm IISee price on Amazon

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OM SYSTEM Olympus M.Zuiko Digital ED 150-600mm F5.0-6.3 is for Micro Four Thirds System Camera,

OM System M.Zuiko 150-600mm f/5-6.3 ISSee price on Amazon

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FAQ

What's the difference between the Panasonic Leica DG 100-400mm II and the OM System M.Zuiko 150-600mm f/5-6.3 IS?
The Panasonic Leica DG 100-400mm II is 100-400mm f/4-6.3 zoom, Micro Four Thirds; the OM System M.Zuiko 150-600mm f/5-6.3 IS is 150-600mm f/5-6.3 zoom, Micro Four Thirds. Both fit the Micro Four Thirds mount.

Which is better in low light, the Panasonic Leica DG 100-400mm II or the OM System M.Zuiko 150-600mm f/5-6.3 IS?
The Panasonic Leica DG 100-400mm II — its f/4-6.3 maximum aperture lets in more light and gives more background blur than the f/5-6.3 of the other.

Do the Panasonic Leica DG 100-400mm II and OM System M.Zuiko 150-600mm f/5-6.3 IS 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.

Citing these specs? Go ahead — manufacturer data, last verified 2026-06-21. Copy a ready-made reference:

More Micro Four Thirds comparisons: OM System M.Zuiko 40-150mm f/2.8 PRO vs Panasonic Leica DG 50-200mm f/2.8-4 · Panasonic Leica DG 15mm f/1.7 vs Panasonic Lumix G 20mm f/1.7 II · Panasonic Leica DG 100-400mm II vs Panasonic Leica DG 50-200mm f/2.8-4 · Panasonic Leica DG 12-60mm f/2.8-4 vs Panasonic Lumix G Vario 12-60mm f/3.5-5.6 · all Micro Four Thirds lenses · all comparisons

Panasonic Leica DG 100-400mm IIAffiliate linkSee price on Amazon