Sony
FE 100-400mm F4.5-5.6 GM OSS
Sony E Mount
FE 100-400mm F4.5-5.6 GM OSS — 100–400mm f/4.5-5.6 for Sony E, a popular choice in the sony lineup.
$2,499
Launch priceReleased Jul 2017
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 6.5 years newer.
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Wins
FE 100-400mm F4.5-5.6 GM OSS
Wins
FE 300mm F2.8 GM OSS
1 categories tied
Which would you choose?
TL;DR — Key differences
- AFE 100-400mm F4.5-5.6 GM OSS has lower Min focus distance (38 cm vs 200 cm)
- BFE 300mm F2.8 GM OSS has lower Max aperture (Tele) (f/2.8 vs f/5.6)
- BFE 300mm F2.8 GM OSS has lower Max aperture (Wide) (f/2.8 vs f/4.5)
- AFE 100-400mm F4.5-5.6 GM OSS has higher Max magnification (0.25 × vs 0.16 ×)
- AFE 100-400mm F4.5-5.6 GM OSS has lower Diameter (81 mm vs 124 mm)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to shareFE 100-400mm F4.5-5.6 GM OSS
⌀81 × 245 mm
1395 g (3.08 lb / 49.21 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)
FE 100-400mm F4.5-5.6 GM OSS is 20mm shorter and 43mm narrower than FE 300mm F2.8 GM OSS.
FE 100-400mm F4.5-5.6 GM OSS is 75 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 FE 100-400mm F4.5-5.6 GM OSS
- ✓
Special elements
Adds Aspherical
- ✓
Min focus distance
38 cm vs 200 cm — lower is better
- ✓
Diameter
81 mm vs 124 mm — lower is better
- ✓
Max magnification
0.25 × vs 0.16 × — higher is better
- ✓
Length
245 mm vs 265 mm — lower is better
- ✓
Weight
1395 g vs 1470 g — lower is better
Reasons to choose the FE 300mm F2.8 GM OSS
- ✓
Special elements
Adds 3 Super ED, 1 ED
- ✓
Max aperture (Tele)
f/2.8 vs f/5.6 — lower is better
- ✓
Max aperture (Wide)
f/2.8 vs f/4.5 — lower is better
Shared specifications
Internal focus
Both support internal focus
Optical stabilization
Both support optical stabilization
OIS effectiveness
Both 5 stops
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.
FE 100-400mm F4.5-5.6 GM OSS
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓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 FE 100-400mm F4.5-5.6 GM OSS and FE 300mm F2.8 GM OSS at major authorized retailers.
Sony FE 100-400mm F4.5-5.6 GM OSS
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.