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
Tamron
28-75mm F2.8 Di III VXD G2
Sony E Mount
An incredibly popular third-party zoom updated with vastly improved sharpness and autofocus.
$899
Launch priceReleased Aug 2021
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 6 months newer.
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Wins
M.Zuiko Digital ED 12-40mm F2.8 PRO II
Wins
28-75mm F2.8 Di III VXD G2
3 categories tied
Which would you choose?
TL;DR — Key differences
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has lower Weight (382 g vs 540 g)
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has lower Length (84 mm vs 118 mm)
- B28-75mm F2.8 Di III VXD G2 has higher Max magnification (0.37 × vs 0.3 ×)
- B28-75mm F2.8 Di III VXD G2 has lower Min focus distance (18 cm vs 20 cm)
- AM.Zuiko Digital ED 12-40mm F2.8 PRO II has lower Diameter (69.9 mm vs 76 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
28-75mm F2.8 Di III VXD G2
⌀76 × 118 mm
540 g (1.19 lb / 19.05 oz)
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 34mm shorter and 6mm narrower than 28-75mm F2.8 Di III VXD G2.
M.Zuiko Digital ED 12-40mm F2.8 PRO II is 158 g lighter than 28-75mm F2.8 Di III VXD G2.
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
- ✓
Weight
382 g vs 540 g — lower is better
- ✓
Length
84 mm vs 118 mm — lower is better
- ✓
Diameter
69.9 mm vs 76 mm — lower is better
Reasons to choose the 28-75mm F2.8 Di III VXD G2
- ✓
Special elements
Adds 2 LD, 2 GM
- ✓
Min focus distance
18 cm vs 20 cm — lower is better
- ✓
Max magnification
0.37 × vs 0.3 × — higher is better
Shared specifications
Max aperture (Wide)
Both f/2.8
Max aperture (Tele)
Both f/2.8
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
28-75mm F2.8 Di III VXD G2
Pros
- ✓Superb value for money compared to first-party options
- ✓Excellent sharpness throughout the range, even at f/2.8
- ✓Very lightweight and compact (only 540g)
- ✓Fast VXD linear motor focus drive
- ✓Customizable lens functions via Tamron Lens Utility software
Cons
- –Starts at 28mm instead of the wider 24mm standard
- –Slightly weaker corner sharpness at 75mm wide open
- –Weather sealing is basic compared to Sony GM lenses
Decided which one is right for you?
Compare live prices for the M.Zuiko Digital ED 12-40mm F2.8 PRO II and 28-75mm F2.8 Di III VXD G2 at major authorized retailers.
OM System M.Zuiko Digital ED 12-40mm F2.8 PRO II
Tamron 28-75mm F2.8 Di III VXD G2
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.