Sigma
100-400mm F5-6.3 DG DN OS Contemporary
Sony E Mount
100-400mm F5-6.3 DG DN OS Contemporary — 100–400mm f/5-6.3 for Sony E, a popular choice in the sigma lineup.
$949
Launch priceReleased Jul 2020
Sony
FE 24-70mm F2.8 GM II
Sony E Mount
The ultimate standard zoom — incredibly sharp, exceptionally compact, and built for professionals.
$2,299
Launch priceReleased Apr 2022
FE 24-70mm F2.8 GM II is 1.8 years newer.
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Wins
100-400mm F5-6.3 DG DN OS Contemporary
Wins
FE 24-70mm F2.8 GM II
TL;DR — Key differences
- A100-400mm F5-6.3 DG DN OS Contemporary has higher OIS effectiveness (5 stops vs 0 stops)
- BFE 24-70mm F2.8 GM II has lower Max aperture (Tele) (f/2.8 vs f/6.3)
- BFE 24-70mm F2.8 GM II has lower Min focus distance (21 cm vs 38 cm)
- BFE 24-70mm F2.8 GM II has lower Max aperture (Wide) (f/2.8 vs f/5)
- BFE 24-70mm F2.8 GM II has lower Length (120 mm vs 210 mm)
Key specs at a glance
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 100-400mm F5-6.3 DG DN OS Contemporary
- ✓
Special elements
Adds Aspherical
- ✓
OIS effectiveness
5 stops vs 0 stops — higher is better
- ✓
Optical stabilization
Only 100-400mm F5-6.3 DG DN OS Contemporary supports it
- ✓
Diameter
81 mm vs 88 mm — lower is better
Reasons to choose the FE 24-70mm F2.8 GM II
- ✓
Special elements
Adds 2 XA (extreme aspherical), 3 Aspherical, 2 ED…
- ✓
Max aperture (Tele)
f/2.8 vs f/6.3 — lower is better
- ✓
Custom function button
Only FE 24-70mm F2.8 GM II supports it
- ✓
Min focus distance
21 cm vs 38 cm — lower is better
- ✓
Max aperture (Wide)
f/2.8 vs f/5 — lower is better
- ✓
Length
120 mm vs 210 mm — lower is better
- ✓
Weight
695 g vs 1140 g — 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
Pros & cons at a glance
Editorially curated highlights and trade-offs.
100-400mm F5-6.3 DG DN OS Contemporary
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓Built-in optical image stabilization
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Relatively heavy for extended handheld use
- –Slower maximum aperture limits low-light performance
FE 24-70mm F2.8 GM II
Pros
- ✓Outstanding sharpness across the entire zoom range
- ✓Remarkably small and lightweight for an f/2.8 zoom
- ✓Four XD Linear focus motors provide blazing-fast AF tracking
- ✓Excellent close-up magnification
- ✓De-clickable aperture ring and customized function buttons
Cons
- –No built-in optical image stabilization (relies on body IBIS)
- –High launch price
- –Aperture ring can be easily bumped if not locked
Decided which one is right for you?
Compare live prices for the 100-400mm F5-6.3 DG DN OS Contemporary and FE 24-70mm F2.8 GM II at major authorized retailers.
Sigma 100-400mm F5-6.3 DG DN OS Contemporary
Sony FE 24-70mm F2.8 GM II
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.