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 20mm F1.4 PRO
Micro Four Thirds Mount
40mm-equiv. F1.4 wide prime with 25 cm close focus, 58 mm filter thread, and IPX1 weather sealing.
$799
Launch priceReleased Oct 2020
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 1.3 years newer.
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Wins
M.Zuiko Digital ED 12-40mm F2.8 PRO II
Wins
M.Zuiko Digital ED 20mm F1.4 PRO
1 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 0.11 ×)
- BM.Zuiko Digital ED 20mm F1.4 PRO has lower Max aperture (Wide) (f/1.4 vs f/2.8)
- BM.Zuiko Digital ED 20mm F1.4 PRO has lower Max aperture (Tele) (f/1.4 vs f/2.8)
- BM.Zuiko Digital ED 20mm F1.4 PRO has lower Weight (247 g vs 382 g)
- BM.Zuiko Digital ED 20mm F1.4 PRO has lower Length (61.7 mm vs 84 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 20mm F1.4 PRO
⌀63 × 62 mm
247 g (0.54 lb / 8.71 oz)
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 22mm longer and 7mm wider than M.Zuiko Digital ED 20mm F1.4 PRO.
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 135 g heavier than M.Zuiko Digital ED 20mm F1.4 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, 1 DSA…
- ✓
Min focus distance
20 cm vs 25 cm — lower is better
- ✓
Max magnification
0.3 × vs 0.11 × — higher is better
Reasons to choose the M.Zuiko Digital ED 20mm F1.4 PRO
- ✓
Special elements
Adds 1 Aspherical, 1 Super ED
- ✓
Max aperture (Wide)
f/1.4 vs f/2.8 — lower is better
- ✓
Max aperture (Tele)
f/1.4 vs f/2.8 — lower is better
- ✓
Weight
247 g vs 382 g — lower is better
- ✓
Length
61.7 mm vs 84 mm — lower is better
- ✓
Diameter
63.4 mm vs 69.9 mm — lower is better
Shared specifications
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Control ring
Both support control ring
Custom function button
Both support custom function button
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 20mm F1.4 PRO
Pros
- ✓Bright f/1.4 aperture for low light and subject separation
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Weather-sealed construction for outdoor shooting
- ✓Lightweight design easy to carry all day
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 20mm F1.4 PRO at major authorized retailers.
OM System M.Zuiko Digital ED 12-40mm F2.8 PRO II
OM System M.Zuiko Digital ED 20mm F1.4 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.