OM System
M.Zuiko Digital ED 12mm F2
Micro Four Thirds Mount
M.Zuiko Digital ED 12mm F2 — 12mm f/2 for Micro Four Thirds, a popular choice in the om-system lineup.
$799
Launch priceReleased Jun 2012
Sony
FE 300mm F2.8 GM OSS
Sony E Mount
World's lightest 300mm F2.8 — 1470g with XD Linear AF, OSS, and G Master resolution.
$6,999
Launch priceReleased Jan 2024
FE 300mm F2.8 GM OSS is 11.6 years newer.
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Wins
M.Zuiko Digital ED 12mm F2
Wins
FE 300mm F2.8 GM OSS
Which would you choose?
TL;DR — Key differences
- BFE 300mm F2.8 GM OSS has higher OIS effectiveness (5 stops vs 0 stops)
- AM.Zuiko Digital ED 12mm F2 has lower Weight (130 g vs 1470 g)
- AM.Zuiko Digital ED 12mm F2 has lower Min focus distance (20 cm vs 200 cm)
- AM.Zuiko Digital ED 12mm F2 has lower Length (43 mm vs 265 mm)
- AM.Zuiko Digital ED 12mm F2 has lower Diameter (56 mm vs 124 mm)
Key specs at a glance
Size and weight, to scale
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M.Zuiko Digital ED 12mm F2
⌀56 × 43 mm
130 g (0.29 lb / 4.59 oz)
Credit card
85.6 × 54 mm
for scale
FE 300mm F2.8 GM OSS
⌀124 × 265 mm
1470 g (3.24 lb / 51.85 oz)
M.Zuiko Digital ED 12mm F2 is 222mm shorter and 68mm narrower than FE 300mm F2.8 GM OSS.
M.Zuiko Digital ED 12mm F2 is 1340 g lighter than FE 300mm F2.8 GM OSS.
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 12mm F2
- ✓
Weight
130 g vs 1470 g — lower is better
- ✓
Min focus distance
20 cm vs 200 cm — lower is better
- ✓
Length
43 mm vs 265 mm — lower is better
- ✓
Special elements
Adds 1 Aspherical, 1 Super ED
- ✓
Diameter
56 mm vs 124 mm — lower is better
- ✓
Max aperture (Wide)
f/2 vs f/2.8 — lower is better
- ✓
Max aperture (Tele)
f/2 vs f/2.8 — lower is better
Reasons to choose the FE 300mm F2.8 GM OSS
- ✓
OIS effectiveness
5 stops vs 0 stops — higher is better
- ✓
Special elements
Adds 3 Super ED
- ✓
Optical stabilization
Only FE 300mm F2.8 GM OSS supports it
- ✓
Control ring
Only FE 300mm F2.8 GM OSS supports it
- ✓
Custom function button
Only FE 300mm F2.8 GM OSS supports it
- ✓
Max magnification
0.16 × vs 0.08 × — 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 12mm F2
Pros
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Lightweight design easy to carry all day
- ✓Native Micro Four Thirds mount compatibility
Cons
- –Third-party or older alternatives may offer better value
FE 300mm F2.8 GM OSS
Pros
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Built-in optical image stabilization
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Premium price point
- –Relatively heavy for extended handheld use
Decided which one is right for you?
Compare live prices for the M.Zuiko Digital ED 12mm F2 and FE 300mm F2.8 GM OSS at major authorized retailers.
OM System M.Zuiko Digital ED 12mm F2
Sony FE 300mm F2.8 GM OSS
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.