OM System
M.Zuiko Digital ED 45mm F1.2 PRO
Micro Four Thirds Mount
90mm-equiv. F1.2 portrait prime with 50 cm close focus, 62 mm filter thread, and IPX1 weather sealing.
$1,199
Launch priceReleased Nov 2017
Sigma
56mm F1.4 DC DN Contemporary
Fujifilm X Mount
56mm F1.4 DC DN Contemporary — 56mm f/1.4 for Fujifilm X, a popular choice in the sigma lineup.
$429
Launch priceReleased Jun 2023
56mm F1.4 DC DN Contemporary is 5.6 years newer.
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Wins
M.Zuiko Digital ED 45mm F1.2 PRO
Wins
56mm F1.4 DC DN Contemporary
2 categories tied
Which would you choose?
TL;DR — Key differences
- B56mm F1.4 DC DN Contemporary has lower Weight (280 g vs 410 g)
- B56mm F1.4 DC DN Contemporary has higher Max magnification (0.14 × vs 0.1 ×)
- B56mm F1.4 DC DN Contemporary has lower Length (66.5 mm vs 84.9 mm)
- AM.Zuiko Digital ED 45mm F1.2 PRO has lower Max aperture (Wide) (f/1.2 vs f/1.4)
- AM.Zuiko Digital ED 45mm F1.2 PRO has lower Max aperture (Tele) (f/1.2 vs f/1.4)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to share
M.Zuiko Digital ED 45mm F1.2 PRO
⌀70 × 85 mm
410 g (0.90 lb / 14.46 oz)
Credit card
85.6 × 54 mm
for scale
56mm F1.4 DC DN Contemporary
⌀67 × 67 mm
280 g (0.62 lb / 9.88 oz)
M.Zuiko Digital ED 45mm F1.2 PRO is 18mm longer and 3mm wider than 56mm F1.4 DC DN Contemporary.
M.Zuiko Digital ED 45mm F1.2 PRO is 130 g heavier than 56mm F1.4 DC DN Contemporary.
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 45mm F1.2 PRO
- ✓
Special elements
Adds 1 Aspherical, 1 DSA, 3 ED…
- ✓
Weather sealing
Only M.Zuiko Digital ED 45mm F1.2 PRO supports it
- ✓
Control ring
Only M.Zuiko Digital ED 45mm F1.2 PRO supports it
- ✓
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
Reasons to choose the 56mm F1.4 DC DN Contemporary
- ✓
Special elements
Adds 1 SLD, 2 Aspherical
- ✓
Weight
280 g vs 410 g — lower is better
- ✓
Length
66.5 mm vs 84.9 mm — lower is better
- ✓
Max magnification
0.14 × vs 0.1 × — higher is better
- ✓
Diameter
67.4 mm vs 70 mm — lower is better
Shared specifications
Min focus distance
Both 50 cm
Internal focus
Both support internal focus
Pros & cons at a glance
Editorially curated highlights and trade-offs.
M.Zuiko Digital ED 45mm 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
Cons
- –Third-party or older alternatives may offer better value
56mm F1.4 DC DN Contemporary
Pros
- ✓Bright f/1.4 aperture for low light and subject separation
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓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 45mm F1.2 PRO and 56mm F1.4 DC DN Contemporary at major authorized retailers.
OM System M.Zuiko Digital ED 45mm F1.2 PRO
Sigma 56mm F1.4 DC DN Contemporary
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.