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Sony FE 100mm f/2.8 STF GM — Prime/Zoom
Sony

Sony FE 100mm f/2.8 STF GM

Prime/Zoom

92
/ 100
From $1,498
VS
Sony FE 100mm f/2.8 STF GM wins by 2
Sony FE 24-70mm f/2.8 GM — Prime/Zoom
Sony

Sony FE 24-70mm f/2.8 GM

Prime/Zoom

90
/ 100
From $2,198
Specdex verdict

Sony FE 100mm f/2.8 STF GM takes it — here’s why.

In our weighted Specdex score, Sony FE 100mm f/2.8 STF GM lands at 92 and Sony FE 24-70mm f/2.8 GM at 90. That puts Sony FE 100mm f/2.8 STF GM ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Sony FE 100mm f/2.8 STF GM if…

  • ✓Fast aperture
  • ✓Quiet autofocus
  • ✓Weather-sealed (most)

Pick Sony FE 24-70mm f/2.8 GM if…

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

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

Sharpness

Sony FE 100mm f/2.8 STF GM

Compared on the sharpness sub-score

Sony FE 100mm f/2.8 STF GM leads on sharpness (92 vs 90).

Build

Sony FE 24-70mm f/2.8 GM

Compared on the build sub-score

Sony FE 24-70mm f/2.8 GM leads on build (94 vs 88).

Autofocus

Tie

Compared on the autofocus sub-score

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

Value for money

Sony FE 100mm f/2.8 STF GM

Specdex score per dollar at MSRP

Sony FE 100mm f/2.8 STF GM more score per dollar ($1,498 vs $2,198).

Sony FE 100mm f/2.8 STF GM 92
vs
90 Sony FE 24-70mm f/2.8 GM

Score breakdown

Sony FE 100mm f/2.8 STF GM
92
sharpness 92
af 90
build 88
value 85
Sony FE 24-70mm f/2.8 GM
90
sharpness 90
af 89
build 94
value 84

Specs side-by-side

Sony FE 100mm f/2.8 STF GM versus Sony FE 24-70mm f/2.8 GM — full spec comparison
Spec Sony FE 100mm f/2.8 STF GM Sony FE 24-70mm f/2.8 GM

Sony FE 100mm f/2.8 STF GM

Pros
  • +Fast aperture
  • +Quiet autofocus
  • +Weather-sealed (most)
Cons
  • −Mount-specific
  • −Weight varies
  • −Price scales with quality

Sony FE 24-70mm f/2.8 GM

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

FAQ: Sony FE 100mm f/2.8 STF GM vs Sony FE 24-70mm f/2.8 GM

Which is better, Sony FE 100mm f/2.8 STF GM or Sony FE 24-70mm f/2.8 GM? +

Sony FE 100mm f/2.8 STF GM scores 92 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.

Is Sony FE 100mm f/2.8 STF GM worth the price? +

At $1,498, Sony FE 100mm f/2.8 STF GM delivers a Specdex score of 92 — strongest in sharpness.

Is Sony FE 24-70mm f/2.8 GM worth the price? +

At $2,198, Sony FE 24-70mm f/2.8 GM delivers a Specdex score of 90 — strongest in build.

Does Sony FE 100mm f/2.8 STF GM or Sony FE 24-70mm f/2.8 GM 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 sharpness, Sony FE 100mm f/2.8 STF GM or Sony FE 24-70mm f/2.8 GM? +

Sony FE 100mm f/2.8 STF GM — leads on sharpness (92 vs 90). Compared on the sharpness sub-score.

Which is better for build, Sony FE 100mm f/2.8 STF GM or Sony FE 24-70mm f/2.8 GM? +

Sony FE 24-70mm f/2.8 GM — leads on build (94 vs 88). Compared on the build sub-score.