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
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
28-75mm F2.8 Di III VXD G2 is 10 months newer.
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Wins
M.Zuiko Digital ED 20mm F1.4 PRO
Wins
28-75mm F2.8 Di III VXD G2
1 categories tied
Which would you choose?
TL;DR — Key differences
- B28-75mm F2.8 Di III VXD G2 has higher Max magnification (0.37 × vs 0.11 ×)
- AM.Zuiko Digital ED 20mm F1.4 PRO has lower Weight (247 g vs 540 g)
- AM.Zuiko Digital ED 20mm F1.4 PRO has lower Max aperture (Wide) (f/1.4 vs f/2.8)
- AM.Zuiko Digital ED 20mm F1.4 PRO has lower Max aperture (Tele) (f/1.4 vs f/2.8)
- AM.Zuiko Digital ED 20mm F1.4 PRO has lower Length (61.7 mm vs 118 mm)
Key specs at a glance
Size and weight, to scale
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M.Zuiko Digital ED 20mm F1.4 PRO
⌀63 × 62 mm
247 g (0.54 lb / 8.71 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 20mm F1.4 PRO is 56mm shorter and 13mm narrower than 28-75mm F2.8 Di III VXD G2.
M.Zuiko Digital ED 20mm F1.4 PRO is 293 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 20mm F1.4 PRO
- ✓
Special elements
Adds 1 Aspherical, 1 Super ED, 2 ED
- ✓
Weight
247 g vs 540 g — lower is better
- ✓
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
- ✓
Control ring
Only M.Zuiko Digital ED 20mm F1.4 PRO supports it
- ✓
Length
61.7 mm vs 118 mm — lower is better
- ✓
Diameter
63.4 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 25 cm — lower is better
- ✓
Max magnification
0.37 × vs 0.11 × — higher is better
Shared specifications
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 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
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 20mm F1.4 PRO and 28-75mm F2.8 Di III VXD G2 at major authorized retailers.
OM System M.Zuiko Digital ED 20mm F1.4 PRO
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.