OM System
M.Zuiko Digital ED 25mm F1.2 PRO
Micro Four Thirds Mount
50mm-equiv. F1.2 standard prime with 19-element design, 30 cm close focus, and IPX1 weather sealing.
$1,199
Launch priceReleased Nov 2017
Panasonic
LEICA DG NOCTICRON 42.5mm F1.2
Micro Four Thirds Mount
LEICA DG NOCTICRON 42.5mm F1.2 — 42.5mm f/1.2 for Micro Four Thirds, a popular choice in the panasonic lineup.
$1,599
Launch priceReleased Aug 2014
M.Zuiko Digital ED 25mm F1.2 PRO is 3.2 years newer.
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Wins
M.Zuiko Digital ED 25mm F1.2 PRO
Wins
LEICA DG NOCTICRON 42.5mm F1.2
3 categories tied
Which would you choose?
TL;DR — Key differences
- BLEICA DG NOCTICRON 42.5mm F1.2 has higher OIS effectiveness (5 stops vs 0 stops)
- BLEICA DG NOCTICRON 42.5mm F1.2 has higher Max magnification (0.25 × vs 0.11 ×)
- AM.Zuiko Digital ED 25mm F1.2 PRO has lower Min focus distance (30 cm vs 38 cm)
- AM.Zuiko Digital ED 25mm F1.2 PRO has lower Length (87 mm vs 110 mm)
- AM.Zuiko Digital ED 25mm F1.2 PRO has lower Weight (410 g vs 425 g)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to share
M.Zuiko Digital ED 25mm F1.2 PRO
⌀70 × 87 mm
410 g (0.90 lb / 14.46 oz)
Credit card
85.6 × 54 mm
for scale
LEICA DG NOCTICRON 42.5mm F1.2
⌀70 × 110 mm
425 g (0.94 lb / 14.99 oz)
M.Zuiko Digital ED 25mm F1.2 PRO is 23mm shorter than LEICA DG NOCTICRON 42.5mm F1.2.
M.Zuiko Digital ED 25mm F1.2 PRO is 15 g lighter than LEICA DG NOCTICRON 42.5mm F1.2.
Diameter (⌀) is the maximum barrel width; length is measured from the mount to the front of the lens.
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
Why pick one over the other
Reasons to choose the M.Zuiko Digital ED 25mm F1.2 PRO
- ✓
Special elements
Adds 1 Aspherical, 1 DSA, 3 ED…
- ✓
Min focus distance
30 cm vs 38 cm — lower is better
- ✓
Length
87 mm vs 110 mm — lower is better
- ✓
Weight
410 g vs 425 g — lower is better
Reasons to choose the LEICA DG NOCTICRON 42.5mm F1.2
- ✓
Special elements
Adds Aspherical, ED
- ✓
OIS effectiveness
5 stops vs 0 stops — higher is better
- ✓
Optical stabilization
Only LEICA DG NOCTICRON 42.5mm F1.2 supports it
- ✓
Custom function button
Only LEICA DG NOCTICRON 42.5mm F1.2 supports it
- ✓
Max magnification
0.25 × vs 0.11 × — higher is better
Shared specifications
Max aperture (Wide)
Both f/1.2
Max aperture (Tele)
Both f/1.2
Internal focus
Both support internal focus
Diameter
Both 70 mm
Weather sealing
Both support weather sealing
Control ring
Both support control ring
Pros & cons at a glance
Editorially curated highlights and trade-offs.
M.Zuiko Digital ED 25mm F1.2 PRO
Pros
- ✓Bright f/1.2 aperture for low light and subject separation
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Third-party or older alternatives may offer better value
LEICA DG NOCTICRON 42.5mm F1.2
Pros
- ✓Bright f/1.2 aperture for low light and subject separation
- ✓Built-in optical image stabilization
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Third-party or older alternatives may offer better value
Decided which one is right for you?
Compare live prices for the M.Zuiko Digital ED 25mm F1.2 PRO and LEICA DG NOCTICRON 42.5mm F1.2 at major authorized retailers.
OM System M.Zuiko Digital ED 25mm F1.2 PRO
Panasonic LEICA DG NOCTICRON 42.5mm F1.2
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.