Canon
Canon EF 70-200mm f/2.8L IS III USM
Prime/zoom
92
/ 100
From $2,099
VS
Sony FE 135mm f/1.8 GM wins by 3
Sony
Sony FE 135mm f/1.8 GM
Prime/Zoom
95
/ 100
From $2,098
Specdex verdict
Sony FE 135mm f/1.8 GM takes it — here’s why.
In our weighted Specdex score, Canon EF 70-200mm f/2.8L IS III USM lands at 92 and Sony FE 135mm f/1.8 GM at 95. That puts Sony FE 135mm f/1.8 GM ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Canon EF 70-200mm f/2.8L IS III USM if…
- ✓Proven optical formula
- ✓Weather-sealing (L/GM/S)
- ✓Strong resale
Pick Sony FE 135mm f/1.8 GM if…
- ✓Fast autofocus
- ✓Weather-sealed
- ✓Premium optics
Canon EF 70-200mm f/2.8L IS III USM 92
vs 95 Sony FE 135mm f/1.8 GM
Score breakdown
Canon EF 70-200mm f/2.8L IS III USM
92 sharpness 92
af 88
build 90
value 86
Sony FE 135mm f/1.8 GM
95 sharpness 95
af 94
build 94
value 84
Specs side-by-side
| Spec | Canon EF 70-200mm f/2.8L IS III USM | Sony FE 135mm f/1.8 GM |
|---|
Canon EF 70-200mm f/2.8L IS III USM
Pros
- +Proven optical formula
- +Weather-sealing (L/GM/S)
- +Strong resale
Cons
- −Mount-specific
- −Older AF motor on some
- −Heavier than modern counterparts
Sony FE 135mm f/1.8 GM
Pros
- +Fast autofocus
- +Weather-sealed
- +Premium optics
Cons
- −Heavy
- −Expensive
- −Focus breathing varies
FAQ: Canon EF 70-200mm f/2.8L IS III USM vs Sony FE 135mm f/1.8 GM
Which is better, Canon EF 70-200mm f/2.8L IS III USM or Sony FE 135mm f/1.8 GM? +
Sony FE 135mm f/1.8 GM scores 95 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is Canon EF 70-200mm f/2.8L IS III USM worth the price? +
At $2,099, Canon EF 70-200mm f/2.8L IS III USM delivers a Specdex score of 92 — strongest in sharpness.
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.
Does Canon EF 70-200mm f/2.8L IS III USM or Sony FE 135mm f/1.8 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.