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Panasonic · Micro Four Thirds mount · Prime lens

Panasonic Leica DG Summilux 25mm f/1.4 II ASPH — adapter compatibility and body matches

The Panasonic Leica DG Summilux 25mm f/1.4 II ASPH sits on the Micro Four Thirds flange geometry (19.25 mm) — below is every body mount it adapts onto, the autofocus / IS / aperture-control level you should expect, and the specific adapter SKUs that ship the path.

Lens specifications

Manufacturer
Panasonic
Lens mount
Micro Four Thirds
Focal length
25mm
Aperture
f/1.4 – f/16
Lens type
Prime
Image stabilization
No
Weight
200 g
Filter thread
46 mm
Released
2020

Background & adapter context

MFT 2.0× crop — renders the full-frame field of view of a 50 mm prime. Leica-certified Panasonic fast standard prime; the 2020 Mark II revision adds dust / splash / freeze sealing and updated coatings vs the 2011 original (also 200 g, same optical formula). The lighter-and-cheaper alternative to the M.Zuiko 25 f/1.2 PRO (200 g vs 410 g, two stops less light but half the weight and half the price) — the more-recommended MFT 50-equivalent for casual / travel use where the f/1.2's two extra stops aren't load-bearing.

Adapting the Leica DG Summilux 25 f/1.4 II onto other bodies

Every feasible body-mount destination for a Micro Four Thirds lens, sorted by adapter feasibility. Curated adapter SKUs (linked below) cover the specific lens-side → body-side pairing — pick the row matching the body you own, then click the SKU for the full teardown.

Body mountResultAdapter examplesCaveats

Body mount

Nikon Z
flange 16 mm
Mechanical
MFIS lens-onlyAp. wheelvignettes
  • generic mechanical adapter ring (multiple vendors)
  • Mechanical adapter only — no electronic communication between Micro Four Thirds lens and Nikon Z body.
  • Lens has no aperture ring; choose an adapter with a built-in aperture-control wheel.

Body mount

Canon RF
flange 20 mm
Speed booster
MFIS lens-onlyAp. wheelvignettes
  • Speed Booster / focal-reducer family
  • Flange clearance is only -0.8 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
  • Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.

Body mount

Canon EF-M
flange 18 mm
Speed booster
MFIS lens-onlyAp. wheelvignettes
  • Speed Booster / focal-reducer family
  • Flange clearance is only 1.3 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
  • Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.

Body mount

Sony E (incl. FE)
flange 18 mm
Speed booster
MFIS lens-onlyAp. wheelvignettes
  • Speed Booster / focal-reducer family
  • Flange clearance is only 1.3 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
  • Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.

Body mount

Fujifilm X
flange 17.7 mm
Speed booster
MFIS lens-onlyAp. wheelvignettes
  • Speed Booster / focal-reducer family
  • Flange clearance is only 1.6 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
  • Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.

Body mount

Fujifilm GFX (G-mount)
flange 26.7 mm
Speed booster
MFIS lens-onlyAp. wheelvignettes
  • Speed Booster / focal-reducer family
  • Flange clearance is only -7.4 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
  • Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.

Body mount

L-Mount
flange 20 mm
Speed booster
MFIS lens-onlyAp. wheelvignettes
  • Speed Booster / focal-reducer family
  • Flange clearance is only -0.8 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
  • Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.

Body mount

Leica M
flange 27.8 mm
Speed booster
MFIS lens-onlyAp. wheelvignettes
  • Speed Booster / focal-reducer family
  • Flange clearance is only -8.6 mm — a plain mechanical adapter cannot reach infinity focus; a focal reducer (Speed Booster) with optical glass is required.
  • Speed Boosters typically widen the effective focal length (~0.71×) and add ~1 stop of light, which can be desirable on crop bodies.

About the Micro Four Thirds mount

Open standard mirrorless mount co-developed by Olympus (now OM System) and Panasonic. 2× crop factor sensor with a 19.25 mm flange is well-suited to legacy-lens adaptation; the small image circle requirement means almost any full-frame lens covers it. Native AF-preserving EF adapter coverage is limited compared to E-mount.

See every adapter that touches the Micro Four Thirds mount →

Common questions

What's the best body to adapt the Panasonic Leica DG Summilux 25mm f/1.4 II ASPH onto?
Two strong destinations. First choice: a Nikon Z body via a generic mechanical adapter ring (multiple vendors) preserves the most of the Leica DG Summilux 25 f/1.4 II's native behaviour (autofocus, in-lens IS where present, electronic aperture). Second choice: a Canon RF body via a Speed Booster / focal-reducer family — solid fallback when the first body family is unavailable. The /matrix and /picker pages let you compare every feasible adaptation side-by-side.
Will autofocus work when the Leica DG Summilux 25 f/1.4 II is adapted onto another body?
No — adapters in our catalogue route the Leica DG Summilux 25 f/1.4 II through a mechanical path on the best-supported body (Nikon Z). Focus is fully manual; rely on the body's focus peaking and magnify-to-focus aids to nail focus.
Does the Leica DG Summilux 25 f/1.4 II's in-lens image stabilization still work through an adapter?
The Leica DG Summilux 25 f/1.4 II has no in-lens IS / VR / OS unit — there's no in-lens stabilisation to pass through. Bodies with IBIS (most modern mirrorless) still stabilise the captured frame, but stabilisation is body-side only.

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