Sony
FE 400mm F2.8 GM OSS
Sony E Mount
World's lightest 400mm F2.8 — 2895g with 3 fluorite elements, XD Linear AF, and OSS.
$12,000
Launch priceReleased Jun 2018
Sony
FE 70-200mm F2.8 GM OSS II
Sony E Mount
The standard telephoto zoom, completely redesigned to be 29% lighter and significantly sharper.
$2,799
Launch priceReleased Oct 2021
FE 70-200mm F2.8 GM OSS II is 3.3 years newer.
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.
Wins
FE 400mm F2.8 GM OSS
Wins
FE 70-200mm F2.8 GM OSS II
2 categories tied
Which would you choose?
TL;DR — Key differences
- BFE 70-200mm F2.8 GM OSS II has lower Min focus distance (40 cm vs 270 cm)
- BFE 70-200mm F2.8 GM OSS II has lower Weight (1045 g vs 2895 g)
- BFE 70-200mm F2.8 GM OSS II has higher Max magnification (0.3 × vs 0.16 ×)
- BFE 70-200mm F2.8 GM OSS II has lower Diameter (88 mm vs 158.1 mm)
- BFE 70-200mm F2.8 GM OSS II has lower Length (200 mm vs 359 mm)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to shareFE 400mm F2.8 GM OSS
⌀158 × 359 mm
2895 g (6.38 lb / 102.12 oz)
Credit card
85.6 × 54 mm
for scale
FE 70-200mm F2.8 GM OSS II
⌀88 × 200 mm
1045 g (2.30 lb / 36.86 oz)
FE 400mm F2.8 GM OSS is 159mm longer and 70mm wider than FE 70-200mm F2.8 GM OSS II.
FE 400mm F2.8 GM OSS is 1850 g heavier than FE 70-200mm F2.8 GM OSS II.
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 400mm F2.8 GM OSS
- ✓
Special elements
Adds 3 Fluorite, 1 ED
- ✓
Control ring
Only FE 400mm F2.8 GM OSS supports it
- ✓
OIS effectiveness
5 stops vs 4.5 stops — higher is better
Reasons to choose the FE 70-200mm F2.8 GM OSS II
- ✓
Special elements
Adds 1 XA, 1 Aspherical, 1 Super ED…
- ✓
Min focus distance
40 cm vs 270 cm — lower is better
- ✓
Weight
1045 g vs 2895 g — lower is better
- ✓
Diameter
88 mm vs 158.1 mm — lower is better
- ✓
Length
200 mm vs 359 mm — lower is better
- ✓
Max magnification
0.3 × vs 0.16 × — higher is better
Shared specifications
Max aperture (Wide)
Both f/2.8
Max aperture (Tele)
Both f/2.8
Internal focus
Both support internal focus
Optical stabilization
Both support optical stabilization
Weather sealing
Both support weather sealing
Custom function button
Both support custom function button
Pros & cons at a glance
Editorially curated highlights and trade-offs.
FE 400mm 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
FE 70-200mm F2.8 GM OSS II
Pros
- ✓Extremely lightweight for an f/2.8 telephoto zoom (only 1045g)
- ✓Virtually instantaneous and silent autofocus with 4 XD Linear motors
- ✓Stunning optical performance and contrast across entire range
- ✓Outstanding built-in Optical SteadyShot stabilization
- ✓Dedicated physical aperture ring with click and lock switches
Cons
- –Very high price tag
- –Lens hood is bulky and can block storage space easily
Decided which one is right for you?
Compare live prices for the FE 400mm F2.8 GM OSS and FE 70-200mm F2.8 GM OSS II at major authorized retailers.
Sony FE 400mm F2.8 GM OSS
Sony FE 70-200mm F2.8 GM OSS II
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.