FitMyLensthe lens-by-mount reference

Best standard prime lenses for the OM System OM-3

4 standard prime lenses that fit the OM System OM-3 (Micro Four Thirds mount) — the natural field of view — first prime territory. Sorted brightest-aperture first; every spec from the manufacturer's catalog.

Last verified 2026-06-21 · Micro Four Thirds mount · OM System Micro Four Thirds body

FocalLensMax apertureTypeCoverageBest forBuy
20mmOM System M.Zuiko 20mm f/1.4 PROf/1.4primeM4/3Standard primeEverydayLow-lightAmazon →
25mmPanasonic Leica DG 25mm f/1.4 IIf/1.4primeM4/3Standard primeLow-lightAmazon →
25mmPanasonic Lumix G 25mm f/1.7f/1.7primeM4/3StreetEverydayStandard primeBudgetAmazon →
25mmOlympus M.Zuiko 25mm f/1.8f/1.8primeM4/3Standard primeEverydayAmazon →

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FAQ

What is the best standard prime lens for the OM System OM-3?
OM System M.Zuiko 20mm f/1.4 PRO (20mm f/1.4) is the standout standard prime option that fits the OM System OM-3. 4 standard prime Micro Four Thirds lenses fit in total — compare them below.

Do these standard prime lenses fit the OM System OM-3?
Yes — every lens here is a Micro Four Thirds mount lens, so it fits the OM System OM-3 and covers its Micro Four Thirds sensor.

All lenses for the OM System OM-3 · the same use across mounts: Standard prime lenses for Micro Four Thirds · all cameras