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 8mm F1.8 PRO
Micro Four Thirds Mount
M.Zuiko Digital ED 8mm F1.8 PRO — 8mm f/1.8 for Micro Four Thirds, a popular choice in the om-system lineup.
$1,099
Launch priceReleased May 2016
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 5.8 years newer.
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Wins
M.Zuiko Digital ED 12-40mm F2.8 PRO II
Wins
M.Zuiko Digital ED 8mm F1.8 PRO
1 categories tied
Which would you choose?
TL;DR — Key differences
- BM.Zuiko Digital ED 8mm F1.8 PRO has lower Min focus distance (12 cm vs 20 cm)
- BM.Zuiko Digital ED 8mm F1.8 PRO has lower Max aperture (Wide) (f/1.8 vs f/2.8)
- BM.Zuiko Digital ED 8mm F1.8 PRO has lower Max aperture (Tele) (f/1.8 vs f/2.8)
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has higher Max magnification (0.3 × vs 0.22 ×)
- BM.Zuiko Digital ED 8mm F1.8 PRO has lower Weight (315 g vs 382 g)
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 8mm F1.8 PRO
⌀62 × 80 mm
315 g (0.69 lb / 11.11 oz)
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 4mm longer and 8mm wider than M.Zuiko Digital ED 8mm F1.8 PRO.
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 67 g heavier than M.Zuiko Digital ED 8mm F1.8 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 magnification
0.3 × vs 0.22 × — higher is better
Reasons to choose the M.Zuiko Digital ED 8mm F1.8 PRO
- ✓
Special elements
Adds 1 Aspherical, 3 ED, 2 Super ED…
- ✓
Min focus distance
12 cm vs 20 cm — lower is better
- ✓
Max aperture (Wide)
f/1.8 vs f/2.8 — lower is better
- ✓
Max aperture (Tele)
f/1.8 vs f/2.8 — lower is better
- ✓
Weight
315 g vs 382 g — lower is better
- ✓
Diameter
62 mm vs 69.9 mm — lower is better
- ✓
Length
80 mm vs 84 mm — lower is better
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 8mm F1.8 PRO
Pros
- ✓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 8mm F1.8 PRO at major authorized retailers.
OM System M.Zuiko Digital ED 12-40mm F2.8 PRO II
OM System M.Zuiko Digital ED 8mm F1.8 PRO
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.