OM System
M.Zuiko Digital ED 17mm F1.2 PRO
Micro Four Thirds Mount
M.Zuiko Digital ED 17mm F1.2 PRO — 17mm f/1.2 for Micro Four Thirds, a popular choice in the om-system lineup.
$1,199
Launch priceReleased Nov 2017
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 20mm F1.4 PRO is 2.9 years newer.
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Wins
M.Zuiko Digital ED 17mm F1.2 PRO
Wins
M.Zuiko Digital ED 20mm F1.4 PRO
1 categories tied
Which would you choose?
TL;DR — Key differences
- AM.Zuiko Digital ED 17mm F1.2 PRO has higher Max magnification (0.25 × vs 0.11 ×)
- BM.Zuiko Digital ED 20mm F1.4 PRO has lower Weight (247 g vs 390 g)
- BM.Zuiko Digital ED 20mm F1.4 PRO has lower Length (61.7 mm vs 87 mm)
- AM.Zuiko Digital ED 17mm F1.2 PRO has lower Min focus distance (18 cm vs 25 cm)
- AM.Zuiko Digital ED 17mm F1.2 PRO has lower Max aperture (Wide) (f/1.2 vs f/1.4)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to shareM.Zuiko Digital ED 17mm F1.2 PRO
⌀68 × 87 mm
390 g (0.86 lb / 13.76 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 17mm F1.2 PRO is 25mm longer and 5mm wider than M.Zuiko Digital ED 20mm F1.4 PRO.
M.Zuiko Digital ED 17mm F1.2 PRO is 143 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 17mm F1.2 PRO
- ✓
Special elements
Adds 1 DSA, 3 ED
- ✓
Min focus distance
18 cm vs 25 cm — lower is better
- ✓
Max aperture (Wide)
f/1.2 vs f/1.4 — lower is better
- ✓
Max aperture (Tele)
f/1.2 vs f/1.4 — lower is better
- ✓
Max magnification
0.25 × vs 0.11 × — higher is better
Reasons to choose the M.Zuiko Digital ED 20mm F1.4 PRO
- ✓
Custom function button
Only M.Zuiko Digital ED 20mm F1.4 PRO supports it
- ✓
Weight
247 g vs 390 g — lower is better
- ✓
Special elements
Adds 2 ED
- ✓
Length
61.7 mm vs 87 mm — lower is better
- ✓
Diameter
63.4 mm vs 68 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 17mm F1.2 PRO
Pros
- ✓Bright f/1.2 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
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 17mm F1.2 PRO and M.Zuiko Digital ED 20mm F1.4 PRO at major authorized retailers.
OM System M.Zuiko Digital ED 17mm F1.2 PRO
OM System M.Zuiko Digital ED 20mm F1.4 PRO
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.