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Canon RF 100-400mm f/5.6-8 — Prime/Zoom
Canon

Canon RF 100-400mm f/5.6-8

Prime/Zoom

84
/ 100
From $649
VS
Sony FE 70-200mm f/4 G OSS II wins by 6
Sony FE 70-200mm f/4 G OSS II — Prime/Zoom
Sony

Sony FE 70-200mm f/4 G OSS II

Prime/Zoom

90
/ 100
From $1,698
Specdex verdict

Sony FE 70-200mm f/4 G OSS II takes it — here’s why.

In our weighted Specdex score, Canon RF 100-400mm f/5.6-8 lands at 84 and Sony FE 70-200mm f/4 G OSS II at 90. That puts Sony FE 70-200mm f/4 G OSS II ahead by 6 points — a decisive margin driven mostly by its strengths in the categories below.

Pick Canon RF 100-400mm f/5.6-8 if…

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

Pick Sony FE 70-200mm f/4 G OSS II 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

Sony FE 70-200mm f/4 G OSS II

Compared on the build sub-score

Sony FE 70-200mm f/4 G OSS II leads on build (94 vs 88).

Sharpness

Sony FE 70-200mm f/4 G OSS II

Compared on the sharpness sub-score

Sony FE 70-200mm f/4 G OSS II leads on sharpness (90 vs 84).

Autofocus

Sony FE 70-200mm f/4 G OSS II

Compared on the autofocus sub-score

Sony FE 70-200mm f/4 G OSS II leads on af (89 vs 82).

Value for money

Canon RF 100-400mm f/5.6-8

Specdex score per dollar at MSRP

Canon RF 100-400mm f/5.6-8 more score per dollar ($649 vs $1,698).

Canon RF 100-400mm f/5.6-8 84
vs
90 Sony FE 70-200mm f/4 G OSS II

Score breakdown

Canon RF 100-400mm f/5.6-8
84
sharpness 84
af 82
build 88
value 85
Sony FE 70-200mm f/4 G OSS II
90
sharpness 90
af 89
build 94
value 84

Specs side-by-side

Canon RF 100-400mm f/5.6-8 versus Sony FE 70-200mm f/4 G OSS II — full spec comparison
Spec Canon RF 100-400mm f/5.6-8 Sony FE 70-200mm f/4 G OSS II

Canon RF 100-400mm f/5.6-8

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

Sony FE 70-200mm f/4 G OSS II

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

FAQ: Canon RF 100-400mm f/5.6-8 vs Sony FE 70-200mm f/4 G OSS II

Which is better, Canon RF 100-400mm f/5.6-8 or Sony FE 70-200mm f/4 G OSS II? +

Sony FE 70-200mm f/4 G OSS II scores 90 on our weighted rubric — ahead by 6. Your best pick depends on the sub-scores above.

Is Canon RF 100-400mm f/5.6-8 worth the price? +

At $649, Canon RF 100-400mm f/5.6-8 delivers a Specdex score of 84 — strongest in build.

Is Sony FE 70-200mm f/4 G OSS II worth the price? +

At $1,698, Sony FE 70-200mm f/4 G OSS II delivers a Specdex score of 90 — strongest in build.

Does Canon RF 100-400mm f/5.6-8 or Sony FE 70-200mm f/4 G OSS II 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, Canon RF 100-400mm f/5.6-8 or Sony FE 70-200mm f/4 G OSS II? +

Sony FE 70-200mm f/4 G OSS II — leads on build (94 vs 88). Compared on the build sub-score.

Which is better for sharpness, Canon RF 100-400mm f/5.6-8 or Sony FE 70-200mm f/4 G OSS II? +

Sony FE 70-200mm f/4 G OSS II — leads on sharpness (90 vs 84). Compared on the sharpness sub-score.