Best portrait lenses for the OM System PEN

OM System PEN · 2026 · 20.4 MP Micro Four Thirds · 393 g · in-body stabilisation

6 portrait lenses that fit the OM System PEN (Micro Four Thirds mount) — flattering compression and subject separation — the classic portrait focal lengths. Sorted brightest-aperture first; every spec from the manufacturer's catalog.

Start with the Panasonic Leica DG 42.5mm f/1.2. At f/1.2 it is the brightest of the 6 portrait Micro Four Thirds lenses that fit the OM System PEN — the full comparison is below.

Last verified 2026-06-21 · Micro Four Thirds mount · OM System Micro Four Thirds body · 2× crop factor

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FocusAny focusAutofocusManual focusStabilisationAny stabilisationNamed stabiliserNo named stabiliserWeather sealingAny sealingWeather-sealedNo full sealing claimUnverifiedWeightAny weightUnder 500 g500–999 g1,000 g or moreUnknown weightPriceAny current priceUnder $500$500–999$1,000–1,999$2,000 or moreReset filters

Showing 6 of 6 lenses

Stabilisation uses a marker in the manufacturer model name; no marker is not a negative claim. Price filters use a current price when available.

Focal	Lens	Buy	Max aperture	Weight	Filter	Type	Coverage	Best for
42.5mm	Panasonic Leica DG 42.5mm f/1.2Tested by LensTip ↗	See price on Amazon	f/1.2	425 g	67mm	prime	M4/3	PortraitLow-lightWedding & event
42.5mm	Panasonic Lumix G 42.5mm f/1.7 ASPH Power OISTested by LensTip ↗	See price on Amazon	f/1.7	130 g	—	prime	M4/3	PortraitLow-lightBudget
45mm	Olympus M.Zuiko 45mm f/1.8Tested by LensTip ↗	See price on Amazon	f/1.8	116 g	—	prime	M4/3	PortraitBudgetLow-light
75mm	OM System M.Zuiko 75mm f/1.8	See price on Amazon	f/1.8	305 g	58mm	prime	M4/3	PortraitTelephotoLow-light
50-200mm	Panasonic Leica DG 50-200mm f/2.8-4Tested by LensTip ↗	See price on Amazon	f/2.8-4	655 g	67mm	zoom	M4/3	TelephotoWildlifeSports & actionPortrait
200mm	Panasonic Leica DG 200mm f/2.8Tested by LensTip ↗	See price on Amazon	f/2.8	1245 g	77mm	prime	M4/3	TelephotoSports & actionPortrait

One limit of this table: it lists only Micro Four Thirds lenses that mount natively on the OM System PEN — lenses fitted through an adapter are not included here. See which mounts adapt to which.

What these focal lengths actually give you on the OM System PEN

The OM System PEN has a Micro Four Thirds sensor, so it sees a 2× crop of what each lens projects. Every focal length below therefore frames 2× tighter than its marked number. That matters for portraits: an 85mm frames like 170mm on the OM System PEN, which is tight for head-and-shoulders in a small room. A 50mm gives you the classic 100mm portrait look instead.

Effective focal lengths are the marked focal length × the 2× sensor crop factor — the field of view, not a change in the lens itself. Aperture and depth of field are unaffected.

Weight & weather sealing on the OM System PEN

On long approaches the decision is often made by weight, not aperture. Published weights for 6 of the 6 lenses above:

Packing light? The lightest here is the Olympus M.Zuiko 45mm f/1.8 at 116g.

Weights and sealing as published for each lens — 1 from the manufacturer's own spec page, 5 from a published lens database or review quoting the maker's figure (per-lens source recorded in the dataset) · methodology

FAQ

What is the best portrait lens for the OM System PEN?
Panasonic Leica DG 42.5mm f/1.2 (42.5mm f/1.2) is the standout portrait option that fits the OM System PEN. 6 portrait Micro Four Thirds lenses fit in total — compare them below.

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

What is the lightest portrait lens for the OM System PEN?
The Olympus M.Zuiko 45mm f/1.8 at 116g (manufacturer-published weight). Weights for 6 of the 6 lenses on this page are in the weight table above.

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Other uses on the OM System PEN: Wide-angle (6) Travel (8) Astrophotography (4) Low-light (9) Everyday (10) Budget (5) Street (5) Standard prime (4) Telephoto (9) Sports & action (7) Wildlife (4)

All lenses for the OM System PEN · the same use across mounts: Portrait lenses for Micro Four Thirds · all cameras

Panasonic Leica DG 42.5mm f/1.2Affiliate linkSee price on Amazon