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

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Canon EF 24-70mm f/4L IS USM
Canon EF 24-70mm f/4L IS USM
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  • Macro mode for up to 0.7x magnification
  • Up to four-stop Image Stabilizer
  • Two aspherical and two UD lens elements
  • Fast ultrasonic AF
  • Sealed against dust and moisture
  • Nine-bladed aperture for soft bokeh
Canon EF 24-70mm f/4L IS USM
MTF Charts: 
Canon EF 24-70mm f4L IS USM MTF chart Wide
Canon EF 24-70mm f4L IS USM MTF chart Tele

Overview

Description by Canon:

A versatile standard zoom well suited to full-frame EOS cameras and a variety of subjects
A versatile 24-70mm f/4 L-series lens with macro mode for up to 0.7x magnification. Ultrasonic AF provides fast, near-silent focusing. UD and aspherical elements deliver superb image quality.

  • Versatile zoom range for a variety of subjects
  • Macro mode for up to 0.7x magnification
  • Up to four-stop Image Stabilizer
  • Two aspherical and two UD lens elements
  • Fast ultrasonic AF
  • Sealed against dust and moisture
  • Nine-bladed aperture for soft bokeh

Versatile zoom range
Tackle a variety of subjects from landscape to portrait to documentary. The EF 24-70mm f/4L IS USM is an ideal standard lens for your full-frame Canon DSLR, featuring wide angle, standard and telephoto focal lengths and a constant f/4 maximum aperture that doesn’t change as the lens is zoomed.

Macro mode
A separate macro position on the zoom ring enables close focusing down to just 0.38m at any zoom position, and a maximum reproduction ratio of 0.7x life size.

Image Stabilizer technology
Shoot hand held in low-light conditions using shutter speeds that are up to four stops slower than usually recommended. Image Stabilizer (IS) technology detects automatically when a photographer is panning to follow moving objects and switches off stablisation in this direction. Hybrid IS detects both angular and shift movements when in macro mode.

High-performance optical design
Capture images of exceptional quality throughout the zoom range. Two types of aspherical lens element are used in combination with ultra-low dispersive (UD) elements to effectively eliminate optical aberrations. Super spectra coatings minimise glare and maximise contrast.

Advanced autofocus
Enjoy fast, near-silent autofocus thanks to a ring-type ultrasonic AF motor. Stay in control with full-time manual focus override.

Built to be tough
Keep shooting even in demanding conditions. The lens is sealed against dust and moisture and the use of fluoride coatings ensures lens elements are easy to clean.

Refined performance
A circular, nine-bladed aperture diaphragm helps generate smooth out-of-focus bokeh, letting your foreground subjects stand out with clarity.

Reviews

Bryan is very impressed by the macro mode this lens provides:

"Canon has been turning out impressively-performing zoom lenses recently and I was quite excited to see a repeat performance from this lens. After evaluating three retail-purchased copies of this lens, here are my observations. With a wide open f/4 aperture: At 24mm, the Canon EF 24-70mm f/4 L IS USM Lens is very sharp in the center with good sharpness extending to the periphery of the full frame image circle. The 24-70 f/4 L IS gets very slightly softer at 35mm and modestly softer yet (especially in the mid and peripheral image circle) at 50mm f/4 where the lens performs its worst. Sharpness improvement by 70mm

Post date: 15/02/2013 - 07:24

Maybe, but under two conditions: You cannot/will not afford the superior EF 25-70mm f2.8L II, or you have forgotten that the 24-105mm f4L IS USM also exists:

"The overall DxOMark score of 19 shows this is not one of the best lenses tested, but there are some areas where it is remarkably good for a zoom lens. Taking the overall DxOMark score of 19, we can see that the lens is not an especially high performer in terms of overall image quality. However, looking at the scores in detail, we can see where the lens fall down.

Post date: 08/02/2013 - 13:39

Another day, another review, and another case of a bad copy lens, an issue I too was confronted with time and again when i bough expensive Canon Glass in the past. Canon L=Lazy quality control? 

"Canon made a smart decision to offer a lower-priced alternative to its 24-70mm ƒ/2.8, in order to give Canon shooters of the more casual or economical nature a way to stay true to the brand name. Unfortunately the lens' performance at 50mm stands out as unacceptable, especially when you consider the lower-priced option here still costs $1,500. Coupled with the fact that we had to seek out the best version to get even these results, this does not breed confidence in the lens.

Post date: 05/02/2013 - 13:20

The Lens was tested with a Canon EOS 6D Full frame camera. On a cropped Dslr its reach would be between the 'not wide enough' and 'not long enough'.

"The Canon EF 24-70mm f/4L IS USM is a very capable but also very pricey standard zoom lens that will appeal most to wedding and reportage photographers looking for a lightweight and responsive lens. It also usefully doubles up as a competent macro lens, perhaps saving the extra expense and space required by another dedicated optic.Given its L-series billing, the Canon EF 24-70mm f/4L IS USM build quality is reassuringly excellent and it makes a perfect partner to a full-frame Canon DSLR like the EOS 6D that we tested it with. Auto-focusing is quiet and quick, with the ability to manuall

Post date: 18/01/2013 - 23:43

The lens was tested with a Canon 5D Mark III Dslr body:

"So long as you're in focus, sharpness doesn't vary much from perfection, except by f/11, where diffraction softens the image. Hey, sorry to spare you endless boring charts, but with a lens this good, there's nothing to show other than sharp pictures under all conditions. With a lens profile on my Canon 5D Mark III or similar camera, falloff is never visible at any setting. Flare and ghosts are very well controlled, but if you push it, you will get a green dot or two.

Post date: 16/01/2013 - 00:00

"Obviously this hasn’t told us a thing about autofocus accuracy, bokeh, or a dozen other things that have to be considered when choosing a lens. Just like you, I’ll be waiting for more complete reviews to tell us about that.

On the basis of this information, though, I’m . . .  well, I don’t know what I am. This is a good lens, but I at the price point I’d probably prefer the f/2.8 of the Tamron VC to the new Canon’s f/4. The macro feature is nice and will certainly pull some

Post date: 04/01/2013 - 22:55

Specifications

DXO Mark Score
Resolution: 
13.0 P-Mpix
Transmission: 
4.0 TStop
Distortion: 
0.20%
Vignetting: 
-1.3 EV
Chr. aberration: 
8.00µm
Specifications
Lens type: 
Zoom
Lens Mount: 
Canon EF mount
Canon EFS mount
AF Motor type: 
USM
Optical characteristics
Focal Length: 
24 - 70mm
Internal zooming: 
No
Angle of view: 
84° - 34°
Zoom Ratio: 
2.9x
Max Magnification: 
0.7x
Lens construction: 
15 elements in 12 groups (2 aspherical and 2 UD lens elements)
Diaphragm Blades: 
9 aperture blades circular opening
Maximum Aperture: 
f/4.0
Minimum Aperture: 
f/22.0
Aperture ring: 
No
Internal Focusing: 
Yes
Front lens element rotating: 
No
Minimum Focusing Distance: 
0.38m
Distance Scale: 
Yes
Full-Time manual focus: 
Yes
Auto Focus / Manual Focus switch: 
Yes
Stabilization system details: 
Hybrid IS Image Stabilizer up to 4 stops
Physical characteristics
Diameter: 
83.0mm
Length: 
93.0mm
Body material: 
Plastic with metal mount
Weather sealing details: 
Dust and moisture resistant
Filter Diameter: 
77mm
Lens Hood included: 
Yes

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