OM System
M.Zuiko Digital ED 300mm F4 IS PRO
Micro Four Thirds Mount
600mm-equiv. F4 super-telephoto with Sync IS (6 stops), 1475g weight, removable rotating tripod collar, and PRO weather sealing.
$3,499
Launch priceReleased Feb 2016
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 8 years newer.
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Wins
M.Zuiko Digital ED 300mm F4 IS PRO
Wins
FE 300mm F2.8 GM OSS
Which would you choose?
TL;DR — Key differences
- AM.Zuiko Digital ED 300mm F4 IS PRO has higher Max magnification (0.24 × vs 0.16 ×)
- BFE 300mm F2.8 GM OSS has lower Max aperture (Wide) (f/2.8 vs f/4)
- BFE 300mm F2.8 GM OSS has lower Max aperture (Tele) (f/2.8 vs f/4)
- AM.Zuiko Digital ED 300mm F4 IS PRO has lower Min focus distance (140 cm vs 200 cm)
- AM.Zuiko Digital ED 300mm F4 IS PRO has lower Diameter (92.5 mm vs 124 mm)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to share
M.Zuiko Digital ED 300mm F4 IS PRO
⌀93 × 227 mm
1475 g (3.25 lb / 52.03 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 300mm F4 IS PRO is 38mm shorter and 32mm narrower than FE 300mm F2.8 GM OSS.
M.Zuiko Digital ED 300mm F4 IS PRO is 5 g heavier 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 300mm F4 IS PRO
- ✓
Special elements
Adds 3 HR, 1 E-HR
- ✓
Min focus distance
140 cm vs 200 cm — lower is better
- ✓
Diameter
92.5 mm vs 124 mm — lower is better
- ✓
Length
227 mm vs 265 mm — lower is better
- ✓
Max magnification
0.24 × vs 0.16 × — higher is better
Reasons to choose the FE 300mm F2.8 GM OSS
- ✓
Special elements
Adds 1 ED
- ✓
Max aperture (Wide)
f/2.8 vs f/4 — lower is better
- ✓
Max aperture (Tele)
f/2.8 vs f/4 — lower is better
- ✓
OIS effectiveness
5 stops vs 4 stops — higher is better
- ✓
Weight
1470 g vs 1475 g — lower is better
Shared specifications
Internal focus
Both support internal focus
Optical stabilization
Both support optical stabilization
Weather sealing
Both support weather sealing
Control ring
Both support control ring
Custom function button
Both support custom function button
Pros & cons at a glance
Editorially curated highlights and trade-offs.
M.Zuiko Digital ED 300mm F4 IS PRO
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
- –Slower maximum aperture limits low-light performance
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 300mm F4 IS PRO and FE 300mm F2.8 GM OSS at major authorized retailers.
OM System M.Zuiko Digital ED 300mm F4 IS PRO
Sony FE 300mm F2.8 GM OSS
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.