Panasonic Lumix G 20mm f/1.7 II vs Panasonic Leica DG 12mm f/1.4

Both are Micro Four Thirds mount primes for street — 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 Lumix G 20mm f/1.7 II	Panasonic Leica DG 12mm f/1.4
Focal length	20mm	12mm
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 Panasonic Leica DG 12mm f/1.4 opens wider (f/1.4) — brighter in low light and more background blur
the Panasonic Leica DG 12mm f/1.4 (12mm) is wider — more in the frame for street and interiors; the Panasonic Lumix G 20mm f/1.7 II (20mm) is tighter — more reach and compression for portraits

Where to buy

Panasonic LUMIX G II Lens, 20MM, F1.7 ASPH, MIRRORLESS Micro Four Thirds, H-H020AS (USA Silver)

Check the Panasonic Lumix G 20mm f/1.7 II price on Amazon → Amazon has no new-stock listing for this one right now — this button runs an Amazon search for it rather than opening a product page.

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Panasonic LUMIX G Leica DG SUMMILUX Lens, 12mm, F1.4 ASPH., Wide Angle, Professional Mirrorless Micro Four Thirds, H-X01

Check the Panasonic Leica DG 12mm f/1.4 price on Amazon →

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FAQ

What's the difference between the Panasonic Lumix G 20mm f/1.7 II and the Panasonic Leica DG 12mm f/1.4?
The Panasonic Lumix G 20mm f/1.7 II is 20mm f/1.7 prime, Micro Four Thirds; the Panasonic Leica DG 12mm f/1.4 is 12mm f/1.4 prime, Micro Four Thirds. Both fit the Micro Four Thirds mount.

Which is better in low light, the Panasonic Lumix G 20mm f/1.7 II or the Panasonic Leica DG 12mm f/1.4?
The Panasonic Leica DG 12mm f/1.4 — 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 Lumix G 20mm f/1.7 II and Panasonic Leica DG 12mm f/1.4 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 100-400mm f/5-6.3 IS vs Panasonic Lumix G 100-300mm f/4-5.6 II · OM System M.Zuiko 100-400mm f/5-6.3 IS II 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 · OM System M.Zuiko 40-150mm f/2.8 PRO vs OM System M.Zuiko 150-600mm f/5-6.3 IS · all Micro Four Thirds lenses · all comparisons

Panasonic Leica DG 12mm f/1.4Affiliate linkAmazon →