Panasonic Leica DG 15mm f/1.7 vs OM System M.Zuiko 20mm f/1.4 PRO

Both are Micro Four Thirds mount primes for everyday and low-light — 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 15mm f/1.7	OM System M.Zuiko 20mm f/1.4 PRO
Focal length	15mm	20mm
Max aperture	f/1.7	f/1.4
Type	prime	prime
Coverage	Micro Four Thirds	Micro Four Thirds
Mount	Micro Four Thirds	Micro Four Thirds

Which should you buy?

the OM System M.Zuiko 20mm f/1.4 PRO opens wider (f/1.4) — brighter in low light and more background blur
the Panasonic Leica DG 15mm f/1.7 (15mm) is wider — more in the frame for street and interiors; the OM System M.Zuiko 20mm f/1.4 PRO (20mm) is tighter — more reach and compression for portraits

Where to buy

Panasonic Leica DG Summilux 15mm f/1.7 Mirrorless Camera Lens, Micro Four Thirds, Black

Panasonic Leica DG 15mm f/1.7See price on Amazon

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OM System M.Zuiko 20mm f/1.4 PROSee price on Amazon We could not find this one on Amazon US in Micro Four Thirds — this button runs an Amazon search for it rather than opening a product page.

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FAQ

What's the difference between the Panasonic Leica DG 15mm f/1.7 and the OM System M.Zuiko 20mm f/1.4 PRO?
The Panasonic Leica DG 15mm f/1.7 is 15mm f/1.7 prime, Micro Four Thirds; the OM System M.Zuiko 20mm f/1.4 PRO is 20mm f/1.4 prime, Micro Four Thirds. Both fit the Micro Four Thirds mount.

Which is better in low light, the Panasonic Leica DG 15mm f/1.7 or the OM System M.Zuiko 20mm f/1.4 PRO?
The OM System M.Zuiko 20mm f/1.4 PRO — its f/1.4 maximum aperture lets in more light and gives more background blur than the f/1.7 of the other.

Do the Panasonic Leica DG 15mm f/1.7 and OM System M.Zuiko 20mm f/1.4 PRO 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 17mm f/1.8 vs OM System M.Zuiko 20mm f/1.4 PRO · Olympus M.Zuiko 25mm f/1.8 vs OM System M.Zuiko 20mm f/1.4 PRO · Panasonic Leica DG 42.5mm f/1.2 vs Panasonic Lumix G 42.5mm f/1.7 ASPH Power OIS · Panasonic Leica DG 9mm f/1.7 vs OM System M.Zuiko 8mm f/1.8 Fisheye PRO · all Micro Four Thirds lenses · all comparisons

Panasonic Leica DG 15mm f/1.7Affiliate linkSee price on Amazon