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Sony FE 135mm f/1.8 GM — Prime/Zoom
Sony

Sony FE 135mm f/1.8 GM

Prime/Zoom

95
/ 100
From $2,098
VS
Sony FE 135mm f/1.8 GM wins by 2
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
Specdex verdict

Sony FE 135mm f/1.8 GM takes it — here’s why.

In our weighted Specdex score, Sony FE 135mm f/1.8 GM lands at 95 and Sony FE 100-400mm f/4.5-5.6 GM OSS at 93. That puts Sony FE 135mm f/1.8 GM ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Sony FE 135mm f/1.8 GM if…

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

Pick Sony FE 100-400mm f/4.5-5.6 GM OSS 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 135mm f/1.8 GM

Compared on the sharpness sub-score

Sony FE 135mm f/1.8 GM leads on sharpness (95 vs 93).

Build

Tie

Compared on the build sub-score

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

Autofocus

Sony FE 135mm f/1.8 GM

Compared on the autofocus sub-score

Sony FE 135mm f/1.8 GM leads on af (94 vs 92).

Value for money

Sony FE 135mm f/1.8 GM

Specdex score per dollar at MSRP

Sony FE 135mm f/1.8 GM more score per dollar ($2,098 vs $2,498).

Sony FE 135mm f/1.8 GM 95
vs
93 Sony FE 100-400mm f/4.5-5.6 GM OSS

Score breakdown

Sony FE 135mm f/1.8 GM
95
sharpness 95
af 94
build 94
value 84
Sony FE 100-400mm f/4.5-5.6 GM OSS
93
sharpness 93
af 92
build 94
value 84

Specs side-by-side

Sony FE 135mm f/1.8 GM versus Sony FE 100-400mm f/4.5-5.6 GM OSS — full spec comparison
Spec Sony FE 135mm f/1.8 GM Sony FE 100-400mm f/4.5-5.6 GM OSS

Sony FE 135mm f/1.8 GM

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

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: Sony FE 135mm f/1.8 GM vs Sony FE 100-400mm f/4.5-5.6 GM OSS

Which is better, Sony FE 135mm f/1.8 GM or Sony FE 100-400mm f/4.5-5.6 GM OSS? +

Sony FE 135mm f/1.8 GM scores 95 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.

Is Sony FE 135mm f/1.8 GM worth the price? +

At $2,098, Sony FE 135mm f/1.8 GM delivers a Specdex score of 95 — 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 Sony FE 135mm f/1.8 GM 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.

Which is better for sharpness, Sony FE 135mm f/1.8 GM or Sony FE 100-400mm f/4.5-5.6 GM OSS? +

Sony FE 135mm f/1.8 GM — leads on sharpness (95 vs 93). Compared on the sharpness sub-score.

Which is better for autofocus, Sony FE 135mm f/1.8 GM or Sony FE 100-400mm f/4.5-5.6 GM OSS? +

Sony FE 135mm f/1.8 GM — leads on af (94 vs 92). Compared on the autofocus sub-score.