Best portrait lenses for the OM System OM-1 Mark II

OM System OM-1 Mark II · 2024 · 20.4 MP Micro Four Thirds · 599 g · in-body stabilisation

6 portrait lenses that fit the OM System OM-1 Mark II (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 OM-1 Mark II — 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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Focal	Lens	Buy	Max aperture	Weight	Filter	Type	Coverage	Best for
42.5mm	Panasonic Leica DG 42.5mm f/1.2	Check price →	f/1.2	425 g	67mm	prime	M4/3	PortraitLow-lightWedding & event
42.5mm	Panasonic Lumix G 42.5mm f/1.7 ASPH Power OIS	Check price →	f/1.7	130 g	—	prime	M4/3	PortraitLow-lightBudget
45mm	Olympus M.Zuiko 45mm f/1.8	Check price →	f/1.8	116 g	—	prime	M4/3	PortraitBudgetLow-light
75mm	OM System M.Zuiko 75mm f/1.8	Check price →	f/1.8	305 g	58mm	prime	M4/3	PortraitTelephotoLow-light
50-200mm	Panasonic Leica DG 50-200mm f/2.8-4	Check price →	f/2.8-4	655 g	67mm	zoom	M4/3	TelephotoWildlifeSports & actionPortrait
200mm	Panasonic Leica DG 200mm f/2.8	Check price →	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 OM-1 Mark II — 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 OM-1 Mark II

The OM System OM-1 Mark II 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 OM-1 Mark II, 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 OM-1 Mark II

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 OM-1 Mark II?
Panasonic Leica DG 42.5mm f/1.2 (42.5mm f/1.2) is the standout portrait option that fits the OM System OM-1 Mark II. 6 portrait Micro Four Thirds lenses fit in total — compare them below.

Do these portrait lenses fit the OM System OM-1 Mark II?
Yes — every lens here is a Micro Four Thirds mount lens, so it fits the OM System OM-1 Mark II and covers its Micro Four Thirds sensor.

What is the lightest portrait lens for the OM System OM-1 Mark II?
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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All lenses for the OM System OM-1 Mark II · the same use across mounts: Portrait lenses for Micro Four Thirds · all cameras

Panasonic Leica DG 42.5mm f/1.2Affiliate linkAmazon →