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Sony FE 100-400mm f/4.5-5.6 GM OSS — Prime/Zoom
Sony

Sony FE 100-400mm f/4.5-5.6 GM OSS

Prime/Zoom

93
/ 100
From $2,498
VS
Sony FE 100-400mm f/4.5-5.6 GM OSS wins by 1
Sigma 85mm f/1.4 DG DN Art — Prime/Zoom
Sigma

Sigma 85mm f/1.4 DG DN Art

Prime/Zoom

92
/ 100
From $1,199
Specdex verdict

Sony FE 100-400mm f/4.5-5.6 GM OSS takes it — here’s why.

In our weighted Specdex score, Sony FE 100-400mm f/4.5-5.6 GM OSS lands at 93 and Sigma 85mm f/1.4 DG DN Art at 92. That puts Sony FE 100-400mm f/4.5-5.6 GM OSS ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Sony FE 100-400mm f/4.5-5.6 GM OSS if…

  • ✓Fast autofocus
  • ✓Weather-sealed
  • ✓Premium optics

Pick Sigma 85mm f/1.4 DG DN Art if…

  • ✓Fast autofocus
  • ✓Weather-sealed
  • ✓Premium optics
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Build

Tie

Compared on the build sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Sharpness

Tie

Compared on the sharpness sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Autofocus

Tie

Compared on the autofocus sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Value for money

Sigma 85mm f/1.4 DG DN Art

Specdex score per dollar at MSRP

Sigma 85mm f/1.4 DG DN Art more score per dollar ($1,199 vs $2,498).

Sony FE 100-400mm f/4.5-5.6 GM OSS 93
vs
92 Sigma 85mm f/1.4 DG DN Art

Score breakdown

Sony FE 100-400mm f/4.5-5.6 GM OSS
93
sharpness 93
af 92
build 94
value 84
Sigma 85mm f/1.4 DG DN Art
92
sharpness 92
af 91
build 94
value 84

Specs side-by-side

Sony FE 100-400mm f/4.5-5.6 GM OSS versus Sigma 85mm f/1.4 DG DN Art — full spec comparison
Spec Sony FE 100-400mm f/4.5-5.6 GM OSS Sigma 85mm f/1.4 DG DN Art

Sony FE 100-400mm f/4.5-5.6 GM OSS

Pros
  • +Fast autofocus
  • +Weather-sealed
  • +Premium optics
Cons
  • −Heavy
  • −Expensive
  • −Focus breathing varies

Sigma 85mm f/1.4 DG DN Art

Pros
  • +Fast autofocus
  • +Weather-sealed
  • +Premium optics
Cons
  • −Heavy
  • −Expensive
  • −Focus breathing varies

FAQ: Sony FE 100-400mm f/4.5-5.6 GM OSS vs Sigma 85mm f/1.4 DG DN Art

Which is better, Sony FE 100-400mm f/4.5-5.6 GM OSS or Sigma 85mm f/1.4 DG DN Art? +

Sony FE 100-400mm f/4.5-5.6 GM OSS scores 93 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.

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.

Is Sigma 85mm f/1.4 DG DN Art worth the price? +

At $1,199, Sigma 85mm f/1.4 DG DN Art delivers a Specdex score of 92 — strongest in build.

Does Sony FE 100-400mm f/4.5-5.6 GM OSS or Sigma 85mm f/1.4 DG DN 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 the better value, Sony FE 100-400mm f/4.5-5.6 GM OSS or Sigma 85mm f/1.4 DG DN Art? +

Sigma 85mm f/1.4 DG DN Art — more score per dollar ($1,199 vs $2,498). Specdex score per dollar at MSRP.