Canon EF 24-70mm f/4L IS USM Lens

Zoom lens with image stabilization for all EOS cameras

  • Canon EF 24-70mm f/4L IS USM Lens


Item #: 2802470F4L
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Our take on the Canon EF 24-70mm f/4L IS USM Lens

by Woody Sherman

If you've taken your first foray into the world of full-frame sensors — like the spectacular one found on the Canon 6D — we've got the perfect go-to lens for you.  This L-Series 24-70mm f/4 "standard" zoom will take you from getting the whole room in the shot to intimate portraits while gathering all the light you need in subdued settings. And even with an APS-C sensor digital camera, you'll have a very useful equivalent range of 38-112mm — perfect for everyday challenges.

With a maximum aperture of f/4, you'll be able to isolate focus on your subjects in both cases, while keeping the background pleasingly out-of-focus. The nine blades of that aperture make an opening that's nearly circular, so those backgrounds will be creamy-smooth.

Lightweight, rugged, and high-performance. Sounds perfect for travel, doesn't it? Book the trip — you've got the ideal companion.

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  • 24-70mm EF f/4L IS USM 2.9X zoom lens
  • effective focal length:
    • 24-70mm with 35mm film or full-frame sensor digital cameras
    • 38-112mm with APS-C sensor Canon cameras
  • compatible with all Canon autofocus film and digital SLR cameras
  • Micro USM (Ultrasonic Motor)
  • minimum focus distance: 1.25 ft.
  • constructed of 15 elements in 12 groups
  • filter size: 77mm
  • lens is 4" long, 3-1/4" in diameter
  • weight: 21 oz.
  • warranty: 1 year
  • Our 60-day money-back guarantee
Supplied Accessories:
  • lens hood
  • front and rear lens caps

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Brand Compatibility Canon
Image Stabilization Yes
Focal Length 24-70mm
Maximum Aperture F4
Weight 21.2 ounces
Parts Warranty 1 Year
Labor Warranty 1 Year
Product Research
What's in the box?

Download owner's manual

  • EF 24-70mm F4L IS USM lens
  • 77mm Front lens cap (installed)
  • Rear lens cap (installed)
  • EW-83L lens hood
  • LP1219 Lens case
  • Instructions
  • Warranty card

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.


Overview: The Canon EF 24-70mm f/4L IS USM lens is a standard zoom lens for Canon EOS cameras. The inner focus system and ring-type USM (ultrasonic motor) gives you faster, more precise auto focusing. The lens mount has a rubber ring for enhanced dust and water resistance. The 9-blade circular aperture diaphragm provides beautiful soft backgrounds, while the fluorine coating on the front and rear lens elements reduces smears and fingerprints.

Macro Shooting: The lens has a macro mode at the telephoto end for taking close-up photos. To set the lens for macro shooting you must hold the Macro/Lock switch while rotating the lens past 70mm to the macro setting. In macro mode, the minimum shooting distance becomes 7.87".

Optical Image Stabilizer (OIS): The Canon Optical Image Stabilizer (OIS) system delivers the equivalent effect of 3 stops and can detect normal shooting or panning. It automatically switches to the optimal IS mode when camera shake is detected. You can turn the OIS on or off using the 2-way switch on the lens barrel.

Focusing Ring: Regardless of whether you're in manual or auto focus mode, the full-time focusing ring always works. This means you can auto focus on a subject, but manually change the focus by turning the focusing ring.

Focus Mode Switch: You can switch between Auto Focus and Manual Focus using the two-way AF/MF switch on the barrel of the lens.

Zoom Ring Lock: To keep the lens from inadvertently extending, you can lock the zoom ring to keep the lens at the shortest point.


  • Focal Length/Aperture: 24-70mm f/4
  • Lens Construction: 15 elements in 12 groups
  • Minimum Aperture: f/22
  • Maximum Magnification: 0.21x at 70mm, 0.7x in the macro range
  • Angle of View:
    • Diagonal: 84°-34°
    • Vertical: 53°-19°
    • Horizontal: 74°-29°
  • Minimum Focus Distance: 1.25' (0.38m) (0.66'/0.2m in macro range)
  • Dimensions:
    • Diameter: 3.23"
    • Length: 3.96" (4.633" with caps)
    • Weight: 21.2 ounces
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For a more in-depth review and enhanced detailed information on the Canon EF 24-70mm f/4L IS USM Lens, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_2802470F4L/Canon-EF-24-70mm-f-4L-IS-USM-Lens.html ).