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 12mm F2
Micro Four Thirds Mount
M.Zuiko Digital ED 12mm F2 — 12mm f/2 for Micro Four Thirds, a popular choice in the om-system lineup.
$799
Launch priceReleased Jun 2012
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 9.7 years newer.
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Wins
M.Zuiko Digital ED 12-40mm F2.8 PRO II
Wins
M.Zuiko Digital ED 12mm F2
2 categories tied
Which would you choose?
TL;DR — Key differences
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has higher Max magnification (0.3 × vs 0.08 ×)
- BM.Zuiko Digital ED 12mm F2 has lower Weight (130 g vs 382 g)
- BM.Zuiko Digital ED 12mm F2 has lower Length (43 mm vs 84 mm)
- BM.Zuiko Digital ED 12mm F2 has lower Max aperture (Wide) (f/2 vs f/2.8)
- BM.Zuiko Digital ED 12mm F2 has lower Max aperture (Tele) (f/2 vs f/2.8)
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 12mm F2
⌀56 × 43 mm
130 g (0.29 lb / 4.59 oz)
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 41mm longer and 14mm wider than M.Zuiko Digital ED 12mm F2.
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 252 g heavier than M.Zuiko Digital ED 12mm F2.
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, 1 DSA…
- ✓
Control ring
Only M.Zuiko Digital ED 12-40mm F2.8 PRO II supports it
- ✓
Custom function button
Only M.Zuiko Digital ED 12-40mm F2.8 PRO II supports it
- ✓
Max magnification
0.3 × vs 0.08 × — higher is better
Reasons to choose the M.Zuiko Digital ED 12mm F2
- ✓
Special elements
Adds 1 Aspherical, 1 ED, 1 Super ED
- ✓
Weight
130 g vs 382 g — lower is better
- ✓
Length
43 mm vs 84 mm — lower is better
- ✓
Max aperture (Wide)
f/2 vs f/2.8 — lower is better
- ✓
Max aperture (Tele)
f/2 vs f/2.8 — lower is better
- ✓
Diameter
56 mm vs 69.9 mm — lower is better
Shared specifications
Min focus distance
Both 20 cm
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
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 12mm F2
Pros
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Lightweight design easy to carry all day
- ✓Native Micro Four Thirds mount compatibility
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 12-40mm F2.8 PRO II and M.Zuiko Digital ED 12mm F2 at major authorized retailers.
OM System M.Zuiko Digital ED 12-40mm F2.8 PRO II
OM System M.Zuiko Digital ED 12mm F2
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.