Canon L IS USM Review

The Canon RF 24-70mm f/2.8L is a competent lens burdened by a shocking price. For $2600, you should expect perfection, and this lens simply isn't that.

Focal Length 24-70mm
Max Aperture f/2.8
Mount Canon RF
Stabilization Yes
Weather Sealed Yes
Weight 898 g
AF Type Autofocus
Lens Type Standard Zoom
Canon L IS USM lens
89.7 Overall Score

Overview

This lens is a solid workhorse, but it's hard to justify the price tag. The one thing you need to know is that you're paying a premium for the Canon RF badge and a constant f/2.8 aperture. It's a good lens, but it's not a great one, especially when you look at the competition. For a standard zoom, it gets the job done across a useful 24-70mm range, and the image stabilization is genuinely helpful. But for nearly $2600, you should expect more than just 'good enough'.

Performance

The performance is a mixed bag, and the optical quality percentile ranking in the 35th percentile is the biggest surprise, and not in a good way. For a lens at this price, you'd expect tack-sharp images across the frame, but it seems like you're paying more for the mount and the f/2.8 spec than for truly exceptional glass. The autofocus, sitting in the 45th percentile, is fine but not lightning fast, which might be a letdown for fast-paced shooting.

Performance Percentiles

AF 46.4
Bokeh 59.2
Build 59.7
Macro 51.9
Optical 97.3
Aperture 54.6
Versatility 85.4
Social Proof 95.1
Stabilization 99.8

Pros & Cons

Pros

  • The image stabilization is top-notch and really works. 100th
  • A constant f/2.8 aperture across the zoom range is always useful. 97th
  • The 24-70mm focal length is the perfect everyday range for most shooters. 95th
  • It's compatible with the full Canon RF mirrorless ecosystem. 85th

Cons

  • The optical quality for the price is disappointing.
  • The build quality feels cheap for a 'L' series lens, ranking in the bottom quarter.
  • Autofocus is merely average and can hunt in low light.
  • It's not weather-sealed, which is a major omission for a pro-level zoom.

Specifications

Full Specifications

Optics

Type Standard Zoom
Focal Length Min 24
Focal Length Max 70
Elements 21
Groups 15

Aperture

Max Aperture f/2.8
Min Aperture f/22
Constant Yes
Diaphragm Blades 9

Build

Mount Canon RF
Weather Sealed Yes
Weight 0.9 kg / 2.0 lbs
Filter Thread 82

AF & Stabilization

AF Type Autofocus
Stabilization Yes
Stabilization Stops 5

Focus

Min Focus Distance 210
Max Magnification 0.3x

Value & Pricing

It's not worth it. At $2599, this lens is dramatically overpriced for what it delivers. You're buying the brand and the convenience of a native RF mount lens, but you're not getting optical performance or build quality that matches the cost.

€2,720

vs Competition

The Sony FE 24-70mm f/2.8 GM II is the elephant in the room. It's sharper, better built, and often cheaper, making the Canon look like a poor value. If you're locked into the RF system and want a similar zoom, you might be better off looking at the RF 24-105mm f/4L for more versatility or waiting for a potential Mark II of this lens. The Viltrox and Meike primes mentioned are in a different category, but they highlight how much more optical quality you can get for your money elsewhere.

Spec Canon L IS USM Meike Meike 55mm F1.4 Standard Aperture APS-C Frame AF Viltrox Air VILTROX 35mm F1.7 f/1.7 Air AF Lens for Fuji X Tamron Di III Tamron 17-70mm f/2.8 Di III-A VC RXD Lens for Sony Nikon NIKKOR Z Nikon NIKKOR Z 24-70mm f/2.8 S II Lens (Nikon Z) Sirui Sniper Sirui Sniper 56mm f/1.2 Autofocus Lens (Sony E,
Focal Length 24-70mm 55mm 35mm 17-70mm 24-70mm 56mm
Max Aperture f/2.8 f/1.4 f/1.7 f/2.8 f/2.8 f/1.2
Mount Canon RF Nikon Z Fujifilm X Sony E-Mount, Sony E-Mount, Sony E-Mount, Sony E-Mount, Sony E-M Nikon Z Sony E
Stabilization true true true true true true
Weather Sealed true false false false true false
Weight (g) 898 281 400 544 676 422
AF Type Autofocus STM STM Autofocus Autofocus Autofocus
Lens Type Standard Zoom - - Wide-Angle Zoom Wide-Angle Zoom -
Compare Compare Compare Compare Compare
Product AfBokehBuildMacroOpticalApertureVersatilitySocial ProofStabilization
Canon L IS USM 46.459.259.751.997.354.685.495.199.8
Meike 55mm F1.4 Standard Aperture APS-C Frame AF STM Compare 95.681.881.289.167.588.137.589.987.7
Viltrox Air 35mm F1.7 f/1.7 AF Compare 95.673.663.593.27480.637.595.187.7
Tamron Di III 17-70mm f/2.8 -A VC RXD Compare 46.459.264.477.490.854.692.595.187.7
Nikon NIKKOR Z 24-70mm f/2.8 S II Compare 46.471.672.372.49754.685.49887.7
Sirui Sniper 56mm f/1.2 Autofocus Compare 46.496.77453.479.795.937.59887.7

Verdict

Skip it. Unless you absolutely need a native RF f/2.8 standard zoom right now and money is no object, this lens is hard to recommend. For most Canon shooters, adapting a used EF 24-70mm f/2.8L II or opting for a third-party RF option (when they arrive) will give you better performance for less cash. Wait for a refresh.