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Canon RF 10-20mm F4 L IS STM vs Canon RF 24-50mm F4.5-6.3 IS STM

Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.

Verdict at a glance

  • Canon RF 10-20mm F4 L IS STM is faster by 0.3 stops (f/4.0 vs f/4.5), letting in more light.
  • Canon RF 24-50mm F4.5-6.3 IS STM is lighter by 360g.
  • Canon RF 10-20mm F4 L IS STM goes wider (10mm vs 24mm).
  • Canon RF 24-50mm F4.5-6.3 IS STM reaches further (50mm vs 20mm).
Specification comparison
Spec RF 10-20mm F4 L IS STM RF 24-50mm F4.5-6.3 IS STM
Brand Canon Canon
Mount Canon RF Canon RF
Type Wide Zoom Zoom
Focal length 10-20mm (wider) 24-50mm
Max aperture f/4.0 (faster) f/4.5
Released 2023 2023
Blades 9 7
Format full-frame full-frame
Groups 12 8
Af motor STM STM
Elements 16 8
Weight g 570.0 210.0 (lighter)
Length mm 112.0 58.0
Stabilized Yes Yes
Diameter mm 83.7 69.6
Min focus m 0.25 n/a
Max magnification 0.12 0.11
Filter mm n/a 58

Canon RF 10-20mm F4 L IS STM

A full-frame ultra-wide zoom for Canon RF mirrorless cameras with image stabilization and a constant f/4 aperture. L-series build.

Pros

  • Very wide 10mm start
  • Constant f/4
  • Image stabilization
  • L-series build

Cons

  • Bulbous front element limits filter use
  • Slower than f/2.8 wide zooms
  • Software distortion correction is part of the design

Canon RF 24-50mm F4.5-6.3 IS STM

The RF 24-50mm F4.5-6.3 IS STM is a compact kit zoom for Canon RF full-frame cameras with stabilization and stepping-motor autofocus.

Pros

  • Very compact (210 g)
  • Image stabilization
  • STM focusing

Cons

  • Slow variable aperture
  • Short zoom range
  • Not sealed

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