Standard prime lenses for Micro Four Thirds mount

4 standard prime options that fit OM System (Olympus) and Panasonic Lumix G Micro Four Thirds bodies — the natural field of view — first prime territory. Every spec from the manufacturer's own product name and catalog.

Last verified 2026-06-21

Shooting a specific body? Per-camera fits: OM System OM-1 · OM System OM-1 Mark II · OM System OM-3 · OM System OM-5 · Panasonic Lumix G100 · Panasonic Lumix G9 II · Panasonic Lumix GH6 · Panasonic Lumix GH7.

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Focal	Lens	Buy	Max aperture	Weight	Type	Coverage	Best for
20mm	OM System M.Zuiko 20mm f/1.4 PRO	Amazon →	f/1.4	247 g	prime	M4/3	Standard primeEverydayLow-light
25mm	Olympus M.Zuiko 25mm f/1.8	Amazon →	f/1.8	137 g	prime	M4/3	Standard primeEveryday
25mm	Panasonic Leica DG 25mm f/1.4 II	Amazon →	f/1.4	205 g	prime	M4/3	Standard primeLow-light
25mm	Panasonic Lumix G 25mm f/1.7	Amazon →	f/1.7	125 g	prime	M4/3	StreetEverydayStandard primeBudget

Weight & weather sealing: which of these can you carry all day?

On long approaches the decision is often made by weight, not aperture. Published weights for 4 of the 4 lenses above:

Lens	Weight	Weather sealing
Panasonic Lumix G 25mm f/1.7	125g	Not verified
Olympus M.Zuiko 25mm f/1.8	137g	Not verified
Panasonic Leica DG 25mm f/1.4 II	205g	Not verified
OM System M.Zuiko 20mm f/1.4 PRO	247g	Weather-sealed

Packing light? The lightest here is the Panasonic Lumix G 25mm f/1.7 at 125g. The lightest weather-sealed option is the OM System M.Zuiko 20mm f/1.4 PRO at 247g.

Weights and sealing as published for each lens — 3 from the manufacturer's own spec page, 1 from a published lens database or review quoting the maker's figure (per-lens source recorded in the dataset) · methodology

All Micro Four Thirds lenses: the full Micro Four Thirds index · other mounts: Sony E · Canon RF · Nikon Z · Fujifilm X · L-Mount.