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Panasonic Leica DG 42.5mm f/1.2 vs Panasonic Lumix G 42.5mm f/1.7 ASPH Power OIS

Both are Micro Four Thirds mount primes for portrait 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

SpecPanasonic Leica DG 42.5mm f/1.2Panasonic Lumix G 42.5mm f/1.7 ASPH Power OIS
Focal length42.5mm42.5mm
Max aperturef/1.2f/1.7
Typeprimeprime
CoverageMicro Four ThirdsMicro Four Thirds
MountMicro Four ThirdsMicro Four Thirds

Which should you buy?

Where to buy

Panasonic LUMIX G Leica DG NOCTICRON Lens, 42.5MM, F1.2 ASPH., Professional MIRRORLESS Micro Four Thirds, Power Optical

Check the Panasonic Leica DG 42.5mm f/1.2 price on Amazon →

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Panasonic LUMIX G Lens, 42.5MM, F1.7 ASPH., MIRRORLESS Micro Four Thirds, Power Optical I.S., H-HS043K (USA Black)

Check the Panasonic Lumix G 42.5mm f/1.7 ASPH Power OIS price on Amazon →

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FAQ

What's the difference between the Panasonic Leica DG 42.5mm f/1.2 and the Panasonic Lumix G 42.5mm f/1.7 ASPH Power OIS?
The Panasonic Leica DG 42.5mm f/1.2 is 42.5mm f/1.2 prime, Micro Four Thirds; the Panasonic Lumix G 42.5mm f/1.7 ASPH Power OIS is 42.5mm f/1.7 prime, Micro Four Thirds. Both fit the Micro Four Thirds mount.

Which is better in low light, the Panasonic Leica DG 42.5mm f/1.2 or the Panasonic Lumix G 42.5mm f/1.7 ASPH Power OIS?
The Panasonic Leica DG 42.5mm f/1.2 — its f/1.2 maximum aperture lets in more light and gives more background blur than the f/1.7 of the other.

Do the Panasonic Leica DG 42.5mm f/1.2 and Panasonic Lumix G 42.5mm f/1.7 ASPH Power OIS 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 42.5mm f/1.2Affiliate linkAmazon →