Sigma
Sigma 24-70mm f/2.8 DG DN II Art
L/E mount · Constant f/2.8 · 745g
93
/ 100
From $1,099
VS
Sony
Sony FE 100-400mm f/4.5-5.6 GM OSS
Prime/Zoom
93
/ 100
From $2,498
Specdex verdict
Dead heat — it comes down to priorities.
In our weighted Specdex score, Sigma 24-70mm f/2.8 DG DN II Art lands at 93 and Sony FE 100-400mm f/4.5-5.6 GM OSS at 93. With scores tied, the decision hinges on which sub-scores matter most to you.
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
Pick Sony FE 100-400mm f/4.5-5.6 GM OSS if…
- ✓Fast autofocus
- ✓Weather-sealed
- ✓Premium optics
Sigma 24-70mm f/2.8 DG DN II Art 93
vs 93 Sony FE 100-400mm f/4.5-5.6 GM OSS
Score breakdown
Sigma 24-70mm f/2.8 DG DN II Art
93 sharpness 95
af 92
build 92
value 95
Sony FE 100-400mm f/4.5-5.6 GM OSS
93 sharpness 93
af 92
build 94
value 84
Specs side-by-side
| Spec | Sigma 24-70mm f/2.8 DG DN II Art | Sony FE 100-400mm f/4.5-5.6 GM OSS |
|---|---|---|
| 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 24-70mm f/2.8 DG DN II Art
Pros
- +Sharper than first-party Sony GM at 1/3 the price
- +Aperture ring with click toggle
- +Weather-sealed
Cons
- −Heavier than Sony GM II
- −Not stabilized — relies on body IBIS
- −Hood plastic
Sony FE 100-400mm f/4.5-5.6 GM OSS
Pros
- +Fast autofocus
- +Weather-sealed
- +Premium optics
Cons
- −Heavy
- −Expensive
- −Focus breathing varies
FAQ: Sigma 24-70mm f/2.8 DG DN II Art vs Sony FE 100-400mm f/4.5-5.6 GM OSS
Which is better, Sigma 24-70mm f/2.8 DG DN II Art or Sony FE 100-400mm f/4.5-5.6 GM OSS? +
Both score 93 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
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.
Is Sony FE 100-400mm f/4.5-5.6 GM OSS worth the price? +
At $2,498, Sony FE 100-400mm f/4.5-5.6 GM OSS delivers a Specdex score of 93 — strongest in build.
Does Sigma 24-70mm f/2.8 DG DN II Art or Sony FE 100-400mm f/4.5-5.6 GM OSS 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.