Head to head

Canon RF 100-500mm f/4.5-7.1L IS USM vs Sony A7 IV

A direct, no-fluff comparison: specs, pros and cons, pricing, and the scenarios where each one earns its keep.

Spec snapshot

Canon RF 100-500mm f/4.5-7.1L IS USMSony A7 IV
Price (USD)$2899$2499
Our rating4.7/54.7/5
Categorycamera-lensescameras
Pros34
Cons23

The case for each

Canon RF 100-500mm f/4.5-7.1L IS USM

4.7

Pros

  • +500mm reach in a manageable size
  • +Sharp throughout zoom
  • +5-stop IS

Cons

  • Variable aperture
  • Slow at 500mm in low light
Full review →

Sony A7 IV

4.7

Pros

  • +Class-leading autofocus
  • +Excellent 10-bit 4K
  • +Fully articulating screen
  • +Dual card slots (CFexpress + SD)

Cons

  • 4K60 has a 1.5x crop
  • Menu system still busy
  • Battery life dips in heavy video use
Full review →

Winner by use case

Vlogging & videoSony A7 IV
Low-light photographyTie
Value for moneyCanon RF 100-500mm f/4.5-7.1L IS USM
Pro & enterprise useTie
BeginnersTie

Inferred from each camera's pros and review focus. Treat as a starting point, then read the full reviews for nuance.

Common questions

Is the Canon RF 100-500mm f/4.5-7.1L IS USM better than the Sony A7 IV?

It depends on what you shoot. Canon RF 100-500mm f/4.5-7.1L IS USM scores 4.7/5 in our review, while the Sony A7 IV scores 4.7/5. See the spec table and use-case breakdown above for our verdict.

Which is cheaper, the Canon RF 100-500mm f/4.5-7.1L IS USM or the Sony A7 IV?

Canon RF 100-500mm f/4.5-7.1L IS USM sells around $2899, and Sony A7 IV around $2499. The Sony A7 IV is the cheaper of the two.

Which one is better for beginners?

Both are capable, but beginners usually do better with whichever has the simpler interface and more forgiving autofocus. Read the "Winner by use case" section above for our specific call.

Should I upgrade from the Canon RF 100-500mm f/4.5-7.1L IS USM to the Sony A7 IV?

Only if the gap in features you actually use is wide. If you already own one, the marginal upgrade is rarely worth the cost unless a specific shortcoming is blocking your work.

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