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
Sony
FE 70-200mm F2.8 GM OSS II
Sony E Mount
The standard telephoto zoom, completely redesigned to be 29% lighter and significantly sharper.
$2,799
Launch priceReleased Oct 2021
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 4 months newer.
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Wins
M.Zuiko Digital ED 12-40mm F2.8 PRO II
Wins
FE 70-200mm F2.8 GM OSS II
3 categories tied
Which would you choose?
TL;DR — Key differences
- BFE 70-200mm F2.8 GM OSS II has higher OIS effectiveness (4.5 stops vs 0 stops)
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has lower Weight (382 g vs 1045 g)
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has lower Length (84 mm vs 200 mm)
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has lower Min focus distance (20 cm vs 40 cm)
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has lower Diameter (69.9 mm vs 88 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
FE 70-200mm F2.8 GM OSS II
⌀88 × 200 mm
1045 g (2.30 lb / 36.86 oz)
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 116mm shorter and 18mm narrower than FE 70-200mm F2.8 GM OSS II.
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 663 g lighter than FE 70-200mm F2.8 GM OSS II.
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…
- ✓
Weight
382 g vs 1045 g — lower is better
- ✓
Length
84 mm vs 200 mm — lower is better
- ✓
Min focus distance
20 cm vs 40 cm — lower is better
- ✓
Control ring
Only M.Zuiko Digital ED 12-40mm F2.8 PRO II supports it
- ✓
Diameter
69.9 mm vs 88 mm — lower is better
Reasons to choose the FE 70-200mm F2.8 GM OSS II
- ✓
OIS effectiveness
4.5 stops vs 0 stops — higher is better
- ✓
Special elements
Adds 1 XA, 1 Aspherical, 1 Super ED
- ✓
Optical stabilization
Only FE 70-200mm F2.8 GM OSS II supports it
Shared specifications
Max aperture (Wide)
Both f/2.8
Max aperture (Tele)
Both f/2.8
Max magnification
Both 0.3 ×
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
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
FE 70-200mm F2.8 GM OSS II
Pros
- ✓Extremely lightweight for an f/2.8 telephoto zoom (only 1045g)
- ✓Virtually instantaneous and silent autofocus with 4 XD Linear motors
- ✓Stunning optical performance and contrast across entire range
- ✓Outstanding built-in Optical SteadyShot stabilization
- ✓Dedicated physical aperture ring with click and lock switches
Cons
- –Very high price tag
- –Lens hood is bulky and can block storage space easily
Decided which one is right for you?
Compare live prices for the M.Zuiko Digital ED 12-40mm F2.8 PRO II and FE 70-200mm F2.8 GM OSS II at major authorized retailers.
OM System M.Zuiko Digital ED 12-40mm F2.8 PRO II
Sony FE 70-200mm F2.8 GM OSS II
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.