OM System
M.Zuiko Digital ED 12-40mm F2.8 PRO II
Micro Four Thirds Mount
IP53 weather-sealed standard zoom with constant F2.8, MSC autofocus, and 0.3× magnification at 40mm.
$1,299
Launch priceReleased Feb 2022
OM System
M.Zuiko Digital ED 8-25mm F4 PRO
Micro Four Thirds Mount
Ultra-wide 8–25mm F4 PRO zoom (16–50mm equiv.) with IP53 sealing, 0.21× magnification, and retracting design.
$1,099
Launch priceReleased Jun 2020
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 1.7 years newer.
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Wins
M.Zuiko Digital ED 12-40mm F2.8 PRO II
Wins
M.Zuiko Digital ED 8-25mm F4 PRO
1 categories tied
Which would you choose?
TL;DR — Key differences
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has lower Max aperture (Wide) (f/2.8 vs f/4)
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has lower Max aperture (Tele) (f/2.8 vs f/4)
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has higher Max magnification (0.3 × vs 0.21 ×)
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has lower Min focus distance (20 cm vs 23 cm)
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has lower Diameter (69.9 mm vs 77 mm)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to shareM.Zuiko Digital ED 12-40mm F2.8 PRO II
⌀70 × 84 mm
382 g (0.84 lb / 13.47 oz)
Credit card
85.6 × 54 mm
for scale
M.Zuiko Digital ED 8-25mm F4 PRO
⌀77 × 89 mm
411 g (0.91 lb / 14.50 oz)
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 5mm shorter and 7mm narrower than M.Zuiko Digital ED 8-25mm F4 PRO.
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 29 g lighter than M.Zuiko Digital ED 8-25mm F4 PRO.
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 12-40mm F2.8 PRO II
- ✓
Special elements
Adds 1 EDA, 2 Aspherical, 2 ED
- ✓
Custom function button
Only M.Zuiko Digital ED 12-40mm F2.8 PRO II supports it
- ✓
Max aperture (Wide)
f/2.8 vs f/4 — lower is better
- ✓
Max aperture (Tele)
f/2.8 vs f/4 — lower is better
- ✓
Min focus distance
20 cm vs 23 cm — lower is better
- ✓
Diameter
69.9 mm vs 77 mm — lower is better
- ✓
Max magnification
0.3 × vs 0.21 × — higher is better
- ✓
Weight
382 g vs 411 g — lower is better
Reasons to choose the M.Zuiko Digital ED 8-25mm F4 PRO
- ✓
Special elements
Adds 2 Aspherical ED, 1 Super ED, 1 ED…
Shared specifications
Internal focus
Both support internal focus
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 12-40mm F2.8 PRO II
Pros
- ✓Constant F2.8 across 12–40mm (24–80mm equiv.)
- ✓IP53 dust/splash/freeze resistance with ZERO coating
- ✓Compact 382g body with MF clutch and L-Fn button
Cons
- –No lens-based IS — relies on Sync IS in compatible bodies
- –Extending barrel design
M.Zuiko Digital ED 8-25mm F4 PRO
Pros
- ✓Constant F4 across 8–25mm
- ✓IP53 weather sealing with ZERO coating
- ✓Retracting barrel — only 411g
Cons
- –No front filter thread (optional CP adapter)
- –Extending zoom barrel
Decided which one is right for you?
Compare live prices for the M.Zuiko Digital ED 12-40mm F2.8 PRO II and M.Zuiko Digital ED 8-25mm F4 PRO at major authorized retailers.
OM System M.Zuiko Digital ED 12-40mm F2.8 PRO II
OM System M.Zuiko Digital ED 8-25mm F4 PRO
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.