OM System
M.Zuiko Digital ED 75mm F1.8
Micro Four Thirds Mount
M.Zuiko Digital ED 75mm F1.8 — 75mm f/1.8 for Micro Four Thirds, a popular choice in the om-system lineup.
$899
Launch priceReleased Sep 2013
Sony
FE 50mm F1.2 GM
Sony E Mount
Exquisite resolution and dreamy bokeh combine in a masterful f/1.2 prime.
$1,999
Launch priceReleased Mar 2021
FE 50mm F1.2 GM is 7.5 years newer.
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Wins
M.Zuiko Digital ED 75mm F1.8
Wins
FE 50mm F1.2 GM
1 categories tied
Which would you choose?
TL;DR — Key differences
- AM.Zuiko Digital ED 75mm F1.8 has lower Weight (305 g vs 778 g)
- BFE 50mm F1.2 GM has lower Min focus distance (40 cm vs 70 cm)
- AM.Zuiko Digital ED 75mm F1.8 has lower Length (69.1 mm vs 108 mm)
- BFE 50mm F1.2 GM has higher Max magnification (0.17 × vs 0.11 ×)
- BFE 50mm F1.2 GM has lower Max aperture (Wide) (f/1.2 vs f/1.8)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to shareM.Zuiko Digital ED 75mm F1.8
⌀69 × 69 mm
305 g (0.67 lb / 10.76 oz)
Credit card
85.6 × 54 mm
for scale
FE 50mm F1.2 GM
⌀87 × 108 mm
778 g (1.72 lb / 27.44 oz)
M.Zuiko Digital ED 75mm F1.8 is 39mm shorter and 18mm narrower than FE 50mm F1.2 GM.
M.Zuiko Digital ED 75mm F1.8 is 473 g lighter than FE 50mm F1.2 GM.
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 75mm F1.8
- ✓
Special elements
Adds 1 ED, 1 Super ED
- ✓
Weight
305 g vs 778 g — lower is better
- ✓
Length
69.1 mm vs 108 mm — lower is better
- ✓
Diameter
69 mm vs 87 mm — lower is better
Reasons to choose the FE 50mm F1.2 GM
- ✓
Special elements
Adds 3 XA (extreme aspherical)
- ✓
Control ring
Only FE 50mm F1.2 GM supports it
- ✓
Custom function button
Only FE 50mm F1.2 GM supports it
- ✓
Min focus distance
40 cm vs 70 cm — lower is better
- ✓
Max aperture (Wide)
f/1.2 vs f/1.8 — lower is better
- ✓
Max aperture (Tele)
f/1.2 vs f/1.8 — lower is better
- ✓
Max magnification
0.17 × vs 0.11 × — higher is better
Shared specifications
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Pros & cons at a glance
Editorially curated highlights and trade-offs.
M.Zuiko Digital ED 75mm F1.8
Pros
- ✓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
FE 50mm F1.2 GM
Pros
- ✓Outstanding sharpness wide open at f/1.2
- ✓Stunningly smooth, circular bokeh with 11 aperture blades
- ✓Extremely quiet and fast autofocus tracking
- ✓Manageable size and weight for an f/1.2 lens
Cons
- –Expensive investment for a single focal length
- –Heavy compared to standard f/1.8 options
- –Some visible vignetting wide open
Decided which one is right for you?
Compare live prices for the M.Zuiko Digital ED 75mm F1.8 and FE 50mm F1.2 GM at major authorized retailers.
OM System M.Zuiko Digital ED 75mm F1.8
Sony FE 50mm F1.2 GM
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.