Sigma 100-400mm DG DN OS
Prime/zoom
Sigma 24-70mm f/2.8 DG DN II Art
L/E mount · Constant f/2.8 · 745g
Sigma 24-70mm f/2.8 DG DN II Art takes it — here’s why.
In our weighted Specdex score, Sigma 100-400mm DG DN OS lands at 86 and Sigma 24-70mm f/2.8 DG DN II Art at 93. That puts Sigma 24-70mm f/2.8 DG DN II Art ahead by 7 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Sigma 100-400mm DG DN OS if…
- ✓Proven optical formula
- ✓Weather-sealing (L/GM/S)
- ✓Strong resale
Pick Sigma 24-70mm f/2.8 DG DN II Art if…
- ✓Sharper than first-party Sony GM at 1/3 the price
- ✓Aperture ring with click toggle
- ✓Weather-sealed
Winner by scenario
Derived from the sub-score breakdown · not a separate testBuild
Sigma 24-70mm f/2.8 DG DN II ArtCompared on the build sub-score
Sigma 24-70mm f/2.8 DG DN II Art leads on build (92 vs 90).
Sharpness
Sigma 24-70mm f/2.8 DG DN II ArtCompared on the sharpness sub-score
Sigma 24-70mm f/2.8 DG DN II Art leads on sharpness (95 vs 86).
Autofocus
Sigma 24-70mm f/2.8 DG DN II ArtCompared on the autofocus sub-score
Sigma 24-70mm f/2.8 DG DN II Art leads on af (92 vs 82).
Value for money
TieSpecdex score per dollar at MSRP
Effectively tied — similar score-per-dollar at MSRP.
Score breakdown
Specs side-by-side
| Spec | Sigma 100-400mm DG DN OS | Sigma 24-70mm f/2.8 DG DN II Art |
|---|---|---|
| Mount | — | L-Mount + Sony E |
| Focal length | — | 24-70 mm |
| Aperture | — | f/2.8 |
| Construction | — | 19 elements / 15 groups |
| Min focus | — | 0.18 m |
| Filter | — | 82 mm |
| Weight | — | 745 g |
Sigma 100-400mm DG DN OS
- +Proven optical formula
- +Weather-sealing (L/GM/S)
- +Strong resale
- −Mount-specific
- −Older AF motor on some
- −Heavier than modern counterparts
Sigma 24-70mm f/2.8 DG DN II Art
- +Sharper than first-party Sony GM at 1/3 the price
- +Aperture ring with click toggle
- +Weather-sealed
- −Heavier than Sony GM II
- −Not stabilized — relies on body IBIS
- −Hood plastic
FAQ: Sigma 100-400mm DG DN OS vs Sigma 24-70mm f/2.8 DG DN II Art
Which is better, Sigma 100-400mm DG DN OS or Sigma 24-70mm f/2.8 DG DN II Art? +
Sigma 24-70mm f/2.8 DG DN II Art scores 93 on our weighted rubric — ahead by 7. Your best pick depends on the sub-scores above.
Is Sigma 100-400mm DG DN OS worth the price? +
At $999, Sigma 100-400mm DG DN OS delivers a Specdex score of 86 — strongest in build.
Is Sigma 24-70mm f/2.8 DG DN II Art worth the price? +
At $1,099, Sigma 24-70mm f/2.8 DG DN II Art delivers a Specdex score of 93 — strongest in sharpness.
Does Sigma 100-400mm DG DN OS or Sigma 24-70mm f/2.8 DG DN II Art last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is better for build, Sigma 100-400mm DG DN OS or Sigma 24-70mm f/2.8 DG DN II Art? +
Sigma 24-70mm f/2.8 DG DN II Art — leads on build (92 vs 90). Compared on the build sub-score.
Which is better for sharpness, Sigma 100-400mm DG DN OS or Sigma 24-70mm f/2.8 DG DN II Art? +
Sigma 24-70mm f/2.8 DG DN II Art — leads on sharpness (95 vs 86). Compared on the sharpness sub-score.