Canon
Canon RF 15-35mm f/2.8L IS USM
Prime/Zoom
93
/ 100
From $2,299
VS
Canon
Canon RF 100-500mm f/4.5-7.1L IS USM
Prime/Zoom
93
/ 100
From $2,699
Specdex verdict
Dead heat — it comes down to priorities.
In our weighted Specdex score, Canon RF 15-35mm f/2.8L IS USM lands at 93 and Canon RF 100-500mm f/4.5-7.1L IS USM at 93. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick Canon RF 15-35mm f/2.8L IS USM if…
- ✓Fast autofocus
- ✓Weather-sealed
- ✓Premium optics
Pick Canon RF 100-500mm f/4.5-7.1L IS USM if…
- ✓Fast autofocus
- ✓Weather-sealed
- ✓Premium optics
Canon RF 15-35mm f/2.8L IS USM 93
vs 93 Canon RF 100-500mm f/4.5-7.1L IS USM
Score breakdown
Canon RF 15-35mm f/2.8L IS USM
93 sharpness 93
af 92
build 94
value 84
Canon RF 100-500mm f/4.5-7.1L IS USM
93 sharpness 93
af 92
build 94
value 84
Specs side-by-side
| Spec | Canon RF 15-35mm f/2.8L IS USM | Canon RF 100-500mm f/4.5-7.1L IS USM |
|---|
Canon RF 15-35mm f/2.8L IS USM
Pros
- +Fast autofocus
- +Weather-sealed
- +Premium optics
Cons
- −Heavy
- −Expensive
- −Focus breathing varies
Canon RF 100-500mm f/4.5-7.1L IS USM
Pros
- +Fast autofocus
- +Weather-sealed
- +Premium optics
Cons
- −Heavy
- −Expensive
- −Focus breathing varies
FAQ: Canon RF 15-35mm f/2.8L IS USM vs Canon RF 100-500mm f/4.5-7.1L IS USM
Which is better, Canon RF 15-35mm f/2.8L IS USM or Canon RF 100-500mm f/4.5-7.1L IS USM? +
Both score 93 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is Canon RF 15-35mm f/2.8L IS USM worth the price? +
At $2,299, Canon RF 15-35mm f/2.8L IS USM delivers a Specdex score of 93 — strongest in build.
Is Canon RF 100-500mm f/4.5-7.1L IS USM worth the price? +
At $2,699, Canon RF 100-500mm f/4.5-7.1L IS USM delivers a Specdex score of 93 — strongest in build.
Does Canon RF 15-35mm f/2.8L IS USM or Canon RF 100-500mm f/4.5-7.1L IS USM 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.