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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 price

Released Jul 2017

vs
FE 16-35mm F2.8 GM II

Sony

FE 16-35mm F2.8 GM II

Sony E Mount

FE 16-35mm F2.8 GM II — 16–35mm f/2.8 for Sony E, a popular choice in the sony lineup.

$2,299

Launch price

Released Aug 2023

FE 16-35mm F2.8 GM II is 6.1 years newer.

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Wins

2categories

FE 100-400mm F4.5-5.6 GM OSS

WildlifeVideo & Hybrid

Wins

6categories

FE 16-35mm F2.8 GM II

LandscapeSports & Action

Which would you choose?

TL;DR — Key differences

FE 100-400mm F4.5-5.6 GM OSS wins 1 categories·FE 16-35mm F2.8 GM II wins 4 categories
  • AFE 100-400mm F4.5-5.6 GM OSS has higher OIS effectiveness (5 stops vs 0 stops)
  • BFE 16-35mm F2.8 GM II has lower Weight (547 g vs 1395 g)
  • BFE 16-35mm F2.8 GM II has lower Length (111.5 mm vs 245 mm)
  • BFE 16-35mm F2.8 GM II has lower Max aperture (Tele) (f/2.8 vs f/5.6)
  • BFE 16-35mm F2.8 GM II has lower Min focus distance (22.1 cm vs 38 cm)

Key specs at a glance

FE 100-400mm F4.5-5.6 GM OSSFE 16-35mm F2.8 GM II
Focal Length100-400 mm16-35 mm
Max Aperturef/4.5-5.6f/2.8
MountSony ESony E
CoverageFull FrameFull-Frame
Stabilization5 stopsNo
Weight1395 g547 g
Min Focus38 cm22.1 cm
Filter Size77 mm82 mm

Size and weight, to scale

FE 100-400mm F4.5-5.6 GM OSS

81 × 245 mm

1395 g (3.08 lb / 49.21 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

FE 16-35mm F2.8 GM II shown to scale

FE 16-35mm F2.8 GM II

88 × 112 mm

547 g (1.21 lb / 19.29 oz)

FE 100-400mm F4.5-5.6 GM OSS is 134mm longer and 7mm narrower than FE 16-35mm F2.8 GM II.

FE 100-400mm F4.5-5.6 GM OSS is 848 g heavier than FE 16-35mm F2.8 GM 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

Use caseFE 100-400mm F4.5-5.6 GM OSSFE 16-35mm F2.8 GM II
Portrait
5.5Fair
4.5Fair
Sports & Action
6.5Good
6.5Good
Video & Hybrid
7.0Good
5.0Fair
Landscape
3.0Limited
7.0Good
Travel
5.0Fair
3.5Limited
Wildlife
9.5Excellent
3.0Limited
Macro & Close-up
3.5Limited
3.5Limited

Why pick one over the other

Reasons to choose the FE 100-400mm F4.5-5.6 GM OSS

  • OIS effectiveness

    5 stops vs 0 stops — higher is better

  • Optical stabilization

    Only FE 100-400mm F4.5-5.6 GM OSS supports it

  • Diameter

    81 mm vs 87.8 mm — lower is better

Reasons to choose the FE 16-35mm F2.8 GM II

  • Weight

    547 g vs 1395 g — lower is better

  • Length

    111.5 mm vs 245 mm — lower is better

  • Max aperture (Tele)

    f/2.8 vs f/5.6 — lower is better

  • Min focus distance

    22.1 cm vs 38 cm — lower is better

  • Max aperture (Wide)

    f/2.8 vs f/4.5 — lower is better

  • Max magnification

    0.32 × vs 0.25 × — higher is better

Shared specifications

Internal focus

Both support internal focus

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 16-35mm F2.8 GM II

Pros

  • Versatile zoom range covers multiple focal lengths in one lens
  • Weather-sealed construction for outdoor shooting
  • Native Sony E mount compatibility

Cons

  • Premium price point
  • Third-party or older alternatives may offer better value

Decided which one is right for you?

Compare live prices for the FE 100-400mm F4.5-5.6 GM OSS and FE 16-35mm F2.8 GM II at major authorized retailers.

Sony FE 100-400mm F4.5-5.6 GM OSS

Sony FE 16-35mm F2.8 GM II

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Full specifications

= category winner

FE 100-400mm F4.5-5.6 GM OSS
FE 16-35mm F2.8 GM II
Focal length (Min)
100 mm
16 mm
Focal length (Max)
400 mm
35 mm
Max aperture (Wide)
f/4.5
f/2.8+1.4 stops wider
Max aperture (Tele)
f/5.6
f/2.8+2 stops wider
Elements
23
15
Groups
17
12
Special elements
Aspherical
Aspherical
FE 100-400mm F4.5-5.6 GM OSS
FE 16-35mm F2.8 GM II
Min focus distance
38 cm
22.1 cm−16 cm less
Max magnification
0.25 ×
0.32 ×+28%
Autofocus motor
Linear / Stepping Motor
Linear / Stepping Motor
Internal focus
Yes
Yes
FE 100-400mm F4.5-5.6 GM OSS
FE 16-35mm F2.8 GM II
Optical stabilization
Yes
No
OIS effectiveness
5 stops
0 stops
FE 100-400mm F4.5-5.6 GM OSS
FE 16-35mm F2.8 GM II
Weight
1395 g
547 g−848 g less
Length
245 mm
111.5 mm−134 mm less
Diameter
81 mm−7 mm less
87.8 mm
Filter thread size
77 mm
82 mm
Weather sealing
Yes
Yes
Diaphragm blades
9
11
FE 100-400mm F4.5-5.6 GM OSS
FE 16-35mm F2.8 GM II
Lens mount
Sony E
Sony E
Format coverage
Full Frame
Full-Frame

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.