Canon 24 70mm F 2.8 Lens

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Canon 24-70mm f/iv

Full-Frame EF USM (2012-today)

Intro   Compatibility   Specs   Performance

Compared   Usage   Recommendations

Canon 24-70mm f/4 L IS

Catechism EF 24-70mm f/4
(77mm filter thread, one.25 feet/0.38m close-focus, 8″/0.2m macro fashion at 70mm, 21.2 oz./600g, near $899. enlarge. I got mine at Adorama. I’d as well get it at Amazon or at B&H.

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anything, regardless of the state in which y’all live. Catechism does not seal its boxes in any way, then
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April 2018

More than Catechism Reviews    Canon Lenses    All Reviews

24-70mm f/2.8 L Ii

24-70mm f/2.8 L

24-105mm f/iv IS L

24-85mm USM

Sample Image Files

Library 13 Jan 2013

Interior, wide-open at f/4 at at 24mm, manus-held at 1/8 2d
5D Mark Three at ISO 100. bigger, full-resolution or Camera-original © 22 MP file.

Awning 11 Jan 2013

Awning, wide-open at f/iv at at 24mm, mitt-held at 1-third of a second.

5D Marking III at ISO 800. bigger.

Awning 11 Jan 2013

Palms at night, wide-open at f/4 at at 31mm, hand-held at
of a second.

5D Mark Three at ISO 12,800. The dots? Stars. Fuzzy branches? Blowing in the wind while I got stone-solid tree trunks! bigger.

Frogs 11 Jan 2013

Frogs at dusk, wide-open at f/four at at 31mm, paw-held at
of a second.

5D Mark III at ISO 400. Camera-original © 22 MP file (watch depth-of-field.)

If it can do this broad-open hand-held with long exposures, just imagine what it can exercise stopped down at reasonable speeds!



Intro   Compatibility   Specs   Performance

Compared   Usage   Recommendations

This Catechism 24-70mm f/4 L IS is a smaller, lighter version of the extraordinary professional 24-70mm f/2.8 Fifty 2. This 24-lxx/4 is as sharp for any applied purposes, which is extremely abrupt at all settings, even broad-open, and has slightly less distortion.

This new lens also adds Image Stabilization to make up for its slower speed, which helps for nevertheless-lifes but does aught for moving subjects. Information technology likewise adds a fairly useless macro mode that gets down to nearly life-size, but requires you lot get then close that you can’t low-cal your subject field.

Hee hee, macro modes were a popular kludge up through the 1990s and had been banished past about 2000, and now they’re back once more equally a sales characteristic. Macro modes are proficient when they let us get actress close, but in do they were and are a pain because we had to terminate what we were doing and jack with them to get what nosotros desire. They went away when lens designers figured out how to go good macro performance at all settings, so nosotros no longer needed the restrictive macro mode switches.

The good thing about this new 24-70/4 IS is that information technology already gets super-close (1.25’/0.38m, as close equally the 24-70/2.eight L Two) without needing any macro mode, and if yous need to get even closer, you manually may turn the zoom ring by the 70mm mark to focus even closer.

Information technology has instant manual-focus override: but catch the focus ring at any time.



Intro   Compatibility   Specs   Functioning

Compared   Usage   Recommendations



lens is optimized for 35mm film and full-frame digital, and of course works on 1.3x and one.6x Catechism cameras.

This Canon EF EOS 24-70mm f/iv


IS works perfectly with
Canon EOS camera ever fabricated, meaning
Canon DSLR and
Canon autofocus picture camera made since 1987.

This ways of form it works great on today’s 5D Mark III, 6D and Canon 7D, but information technology works merely as well on my original Canon EOS 650 from 1987!

As a full-frame lens, I am reviewing it equally such for total-frame bodies.

Canon 24-70mm f/4 L IS

Catechism EF 24-70mm f/four




Intro   Compatibility   Specs   Performance

Compared   Usage   Recommendations

Proper noun

Canon calls this the CANON ZOOM LENS EF 24-70mm f/4



means “electronic focus,” meaning that there is an autofocus motor in the lens itself. All Catechism lenses since 1987 have been EF.


only means equally expensive every bit 50; it means nothing technically.

means twice as expensive equally the showtime 24-70mm f/4 Fifty.

means Ultra-Sonic Motor. This means autofocus is about silent, and that you can catch the big focus ring for instant manual focus override at whatsoever fourth dimension.


15 elements in 12 groups.

Internal focus: nothing moves externally as autofocused.

Pumper zoom, grows as zoomed towards 70mm.

Two aspherical elements.

Two UD glass elements.

Multicoated, branded as “Optimized Super Spectra Coating.”

Fluorine coatings on front and rear elements to help repel fingerprints.

Focal Length



On i.3x Canon cameras it will see angles-of-view like to what a 30~90mm lens would see on a 35mm camera.

On 1.6x Canon cameras it will see angles-of-view like to what a 38~115mm lens would come across on a 35mm camera, which is actually a very useful zoom range.

Angle of View

(on 35mm and full-frame cameras)

84º – 34º diagonal.

53º – 19.5º vertical.

74º – 29º horizontal.

Shut Focus

i.25 feet (0.38m), specified, from the image airplane, autofocus.

Separate manual-focus macro fashion at 70mm gets to 7.9″ (0.2m).

Maximum Reproduction Ratio

Macro mode: 1:i.4 (0.7x).


Canon EW-83L Hood.

Forepart, Catechism EF 24-70mm f/4
IS USM at f/4

(EF diaphragm not visible).

9 rounded blades.

Hard Infinity Focus End?



You accept to let the AF system focus for you at infinity.

Focus Scale


Depth-of-Field Scale


Infra-Ruby Focus Indices

Yes, for 24mm and 35mm. Near likely for 800 nm.

Filter Thread


Does not rotate and doesn’t motility with focus, but does move in and out with zooming.


Catechism specifies three.3″ (83.4mm) bore by 3.vii” (93mm) long.

It extends as zoomed to longer focal lengths.


21.160 oz. (600.0g), measured.

Catechism specifies 21.0 oz. (600g).


Plastic bayonet reversible hood, included.

Canon EW-83L Hood.

Canon EW-83L Hood.


$30 LP1219 sack, included.


New 77mm E-77II front cap, included. It’south a re-create of Nikon’due south newest caps and much improved from Canon’s previous caps.

Standard EOS cap rear, included.

Catechism Model Number



06 November 2012.



Promised for Dec 2012.

Aircraft Since


Jan 2013.

Canon 24-70mm f/4 L IS

Box, Canon EF 24-70mm f/4

Toll, United states of america


$899, April 2018.

$999 (only $799 after rebate), November 2014.

$1,500, November 2012.


Intro   Compatibility   Specs   Performance

Compared   Usage   Recommendations

Overall    Autofocus    Bokeh   Breathing   Color   Coma

Distortion   Ergonomics   Eyeblow   Falloff    Filters

Flare & Ghosts    Lateral Color Fringes   Macro   Mechanics

Sharpness    Spherochromatism    Sunstars


functioning      top

The Canon 24-70 4 Fifty IS is nigh every bit sharp as the spectacular 24-70mm f/2.viii L Ii, but much smaller, virtually equally well made, and adds Epitome Stabilization.

The “Macro” mode isn’t very useful because the bailiwick has to be so close to the lens that the lens blocks the low-cal.


functioning      top

Autofocus is fast and almost silent, every bit we accept for granted with Canon. For the still subjects I shoot, information technology’s almost instantaneous.

Car/Manual Switching

Just grab the focus ring at any time for instant transmission-focus override.

Only move the AF-MF switch if you desire to disable the camera from machine focusing.

AF Speed

AF is fast!, as Canons always are.

The AF motor hums very slightly if y’all’re shooting in silence and you’ll hear some internal sliding. This is essentially the same as every other modern AF lens.

AF Accuracy and Consistency

I saw no autofocus error on my Canon 5D Mark III.

Specially at f/4, every shot is expressionless-on at every focal length.

Yes! Perfection!

Focus with zooming

Focus shifts slightly as zoomed, so focus afterward zooming.

MACRO mode

Autofocus works in the MACRO fashion, but information technology merely works over a limited range.

Manual Focus

Transmission focus is piece of cake; merely grab the ring.

It takes only 100º to get from finish-to-end of the focus scale.


performance      top

Bokeh, the quality of out-of-focus areas as opposed to the degree of defocus, is usually neutral, peculiarly for backgrounds when focused at close distances like 1 meter (3 feet). Sometimes yous will get a bit of a dot in the middle of the blur circumvolve, an artifact of the aspherical design.

Focused at 3 meters (x feet), groundwork bokeh at infinity starts to get worse, simply so what; it’s not far enough out of focus for it to matter.

If y’all want nice, soft backgrounds, shoot at f/4 at 70mm and go as shut as you can to your subject.

Focus Breathing

functioning      peak

Focus breathing (the paradigm changing size as focused) is mostly of interest to cinematographers who don’t want the image changing size (“breathing”) as the lens is focused among different subjects.

The image from the Catechism 24-70mm f/4


IS gets smaller as focused more than closely, at all focal length settings.

Color Rendition

operation      height

The color balance of this 24-70mm f/4 L IS seems the same as my other Canon EF lenses.


performance      top

Coma, or saggital coma flare, is when points of light in the corners turn into batwing-shaped blobs. This is often a problem with fast normal or broad lenses.

I don’t come across any coma in this lens.


functioning      top

The Catechism 24-70mm f/4 has mostly pincushion distortion. It has moderate butt distortion at 24mm, and from 35-70mm it’due south got moderate pincushion baloney.

It has less baloney than either of the 24-70/two.8 50 II or 24-70/2.8 Fifty lenses.

Use these values in Photoshop’s Lens Distortion tool to remove information technology:

On Full-Frame and 35mm

3m (10′)


24-70/2.8 2 at 3m (10′)




















© 2013 All rights reserved.

* Some waviness remains.


performance      top

Canon 24-70mm f/4 L IS

Canon EF 24-70mm f/4

Ergonomics are marvelous.

Zooming is smooth and never crowds any range together.It can be zoomed with one business firm finger, and ideally wants two fingers for fast zooming.

The sample I bought certainly has no zoom pitter-patter, and so I’thou perplexed as to why it has a zoom lock. At that place is
vivid fluorescent warning when you flip-on the zoom lock.

Manual focus experience is perfect.

Forget the Macro manner, it’south a pain and gets so close you block your own light. I had hoped that locked-out macro modes that demanded a slide switch disappeared in the 1980s, but i returns in this lens every bit a sales characteristic.

The AF – MF switch falls right under your thumb.

The zoom and focus rings are made of condom-covered alloy, which feels very solid.


performance      top

Equally a “pumper” zoom that pumps in and out every bit zoomed, the air has to come and become somewhere.

Enough air pumps through the dorsum of this lens that sometimes I can feel a little bit bravado on my heart every bit I zoom back to the wide end.

Yes, like many zooms, this lens pulls air through your camera and viewfinder.


(darkened corners)

performance      top

With a lens contour on my Canon 5D Mark III or similar camera, falloff is never visible at any setting.

On film or without a lens profiles, falloff is visible at f/iv, and gone by f/5.half-dozen.

I’ve greatly exaggerated this by shooting a flat greyness target and presenting it against a grayness background.

Filters, Use with

performance      height

At 24mm on total-frame, only 1 filter works earlier we start getting vignetting.

On full-frame, a standard Hoya rotating polarizer (7.24mm ring thickness, excluding rear threads) works perfectly at every setting; at that place’southward no demand for exotic sparse filters.

If you need to stack filters, you’ll have to zoom-in from 24mm.

On other than full-frame cameras, the crop factor ensures there will never be vignetting, even with stacked filters at 24mm.

Sadly, Canon cheaped-out and the filter threads are plastic, so be careful not to cantankerous-thread.

Flare and Ghosts

performance      top

Canon 24-70mm f/4 L IS

Total-frame, f/ix at 41mm.


Flare and ghosts are very well controlled, but if you lot button it, you lot will get a green dot or two.

What dots you see where will vary with focal length setting and the position of the calorie-free source in your prototype.

Lateral Color Fringes

operation      top

Shot with a lens contour, at that place are no lateral colour fringes.

Shot without a lens contour, there are slight yellow-violet fringes at 24mm, none at 35mm or 50mm, and very slight green-magenta fringes at 70mm.


performance      top

Here’s how shut we get on full-frame in the regular focus manner:

Canon 24-70mm f/4 L IS Macro

At regular close-focus distance at 70mm on total-frame, Catechism 24-70 f/4 IS.

Here’s a crop from this 22MP paradigm at 100%:

Canon 24-70mm f/4 L IS Macro

Crop from above image at 100%, shot at f/8 at ISO 100 on a 5D Marking III.
If this is 6″ (15cm) broad on your screen, the full image would print at twoscore 10 sixty” (1 ten one.five meters)!

The special


style is fairly useless because your subject can be closer than an inch to the front glass of the lens, making it impossible to lite your subject field. Here’s how close information technology gets:

Canon 24-70mm f/4 L IS Macro

At closest MACRO mode distance on full-frame, Canon 24-70 f/4 IS.

Come across how my watch is in shadow? This is about the best I could practice with the light streaming in from the side.

Here’due south a crop from this 22MP image at 100%:

Canon 24-70mm f/4 L IS Macro

Crop from to a higher place image at 100%, shot at f/8 at ISO 100 on a 5D Marker III.
If this is six” (15cm) broad on your screen, the full image would print at twoscore x 60″ (i ten 1.v meters)!

Autofocus works in the


mode, but think that it tin’t focus over much of a range, so you’ll have to put the camera in about the right position earlier trying to autofocus. For macro, transmission focus ordinarily works better.

Nota bene:
your EXIF data will read 80mm when the zoom ring is in the




functioning      top

Canon 24-70mm f/4 L IS

Rear, Catechism EF 24-70mm f/four


The Canon 24-70mm f/4L IS is made very well, only generally out of plastic on the outside.

The front department of this new lens is all plastic, and if you endeavor to wiggle it when extended, a very piffling bit of jerk is normal.

Filter Threads


Fore Barrel


Hood Mountain


Identity Ring


Focus Ring

Metal, rubber-covered.




Metal and plastic.

Zoom Band

Metal, safety-covered.

Rear butt


Moisture seal at mountain



Chromed metallic.



Serial Number

Laser engraved into the bottom of the plastic lens butt.

Canon 24-70 4 IS.

Bottom, Canon 24-70 4 IS.

Date Code

None plant.

Noises When Shaken

Moderate clunking and clattering.

Made in



performance      top

Lens sharpness doesn’t matter much, merely it sure distracts amateurs who confuse lens sharpness with motion-picture show sharpness.

This said, the Catechism 24-70mm f/4 L is first-class. Its sharpness varies very little from center to edge and stays about the same with aperture. There isn’t much reason to end down for more than sharpness; it’s already super-sharp at f/4 all the way to the corners.

Then long as you’re in focus, sharpness doesn’t vary much from perfection, except past f/11, where diffraction softens the image.

Hey, lamentable to spare you endless boring charts, but with a lens this good, there’southward naught to show other than sharp pictures under all atmospheric condition.

The biggest detriment to sharpness volition exist a lack of proper vision and technique, never this lens. I bought mine directly from Adorama. I can’t vouch for anything if y’all buy from a local store or concatenation where you never really know who’s opened and played with your lens before you buy it. I
buy retail; too many risks, and then why pay more?

Here are Canon’south claimed MTF curves, which agree with what I see:

Canon 24-70mm f/4 IS MTF

Canon 24-70mm f/4 IS MTF

Catechism’s MTF Curves.

Compared to the 24-70/2.eight 50 Two, the MTF curves suggest that this f/iv lens is a little bit less sharp, and that agrees with what I see. The differences is negligible.


performance      top

I see no spherochromatism.


functioning      top

Canon 24-70mm f/4 L IS

Full-frame, f/16 at 45mm.


With its nine-bladed diaphragm, this Canon 24-70mm f/4 L IS tin brand eighteen-pointed sunstars on brilliant points of light.

I’m very pleasantly surprised: even though Canon claims “rounded,” which usually kills whatever sunstars, I run across sunstars at moderate and smaller apertures under the right conditions. They tend not to be that obvious (this is an unusually articulate case), and they aren’t that symmetrical.

Sunstars assistance an paradigm tell the viewer but how vivid the points of light are, since a photo tin’t otherwise reproduce the effect of a light or vivid reflection shined in your face up.

I’m really excited about the sunstars. They normally have precipitous points, not the soft muted ones of today’south wimpy “rounded” diaphragms, and they can exist seen at normal apertures like f/8 and f/xi, not needing to squint at f/22.




Intro   Compatibility   Specs   Performance

Compared   Usage   Recommendations

All 24-70mm Lenses Compared.

This 24-70/iv is much smaller and lighter than the 24-70/2.eight L and 24-70/2.8 Fifty 2, and adds IS. They are all extremely sharp, with the 24-70/2.8 L Ii having a slight edge if you’re splitting pixels.

This 24-seventy/4 is a lilliputian bit smaller and lighter than the 24-105/4 Fifty IS, and has greatly improved power to zoom well at the widest end. My peeves about the 24-105L are its cramped zoom between 24 and 35mm, that the 24-105mm has extremely stiff baloney at 24mm, and that the 24-105 has an idiotic 8-bladed diaphragm. This 24-70mm fixes all three of these problems, but y’all lose the 70mm to 105mm end of the zoom.

See my Midrange Zoom Comparing for much more.



Intro   Compatibility   Specs   Performance

Compared   Usage   Recommendations

Canon 24-70mm f/4 L IS

Side, Canon EF 24-70mm f/4


AF – MF switch

Go out this at AF.

The MF setting locks information technology into manual focus merely.

In AF, just grab the ring for transmission focus override.


Leave this at ON, even if on a monopod or many tripods.

Turn it OFF simply if on a very sturdy tripod, or for long time exposures.

Canon 24-70mm f/4 L IS

Macro Controls, Canon EF 24-70mm f/4

MACRO and LOCK switch

Go out this in the middle.

If you lot set the lens to 24mm and slide it to LOCK, it locks the lens at 24mm. My lens doesn’t creep, and even if it did, I’d rather turn the zoom to get it back to 24mm than have to fiddle with unlocking this switch to be able to zoom once more.

To move the ring into the


mode, push and hold the switch toward


while rotating the ring to the



To render to the usual zoom range, push and hold the switch toward


while rotating the zoom band to the usual zoom range.

To focus in the


range, plow the zoom band and move the camera for coarse adjustments. Use the Focus band for fine-tuning. For optimum results, Catechism suggests leaving the focus ring at most the orangish ring at the 1 meter setting.



Intro   Compatibility   Specs   Operation

Compared   Usage   Recommendations

This 24-70mm f/iv L IS is a peachy lens: super-sharp, reasonable distortion with Image Stabilization and great handling.

The original $1,500 price was excessive in 2012, but has become advisable at $999 (or $799 with a rebate) in 2014.

Versus the flagship 24-70mm f/ii.8 50 Two, the difference is obvious. This f/four IS lens is more portable and ideal for still lifes, merely if the subject is moving, IS is of no assistance and the extra end makes the f/two.8 lens twice as useful in low lite or with alive subjects.

For most people on full frame, the 24mm end means you don’t demand another wide lens similar the 16-35mm Two. Since I practice demand the ultrawide end and comport an ultrawide anyhow, I’d rather this lens covered 35-105mm instead.

This 24-70 is also ideal on smaller-format cameras, offering what I find to be an even handier effective focal length range (30-90mm on 1.3x and 38-115mm on 1.6x).

Ignore the macro style; you have to get so close that yous’ll cake your lite. If you want real macro, become the superb Canon 100mm f/2.viii Macro or Tokina 100mm f/2.8 for ameliorate performance at one-third the cost.

I’d use a 77mm B+W 010 MRC UV filter for protection, or a Canon 77mm UV, or a 77mm Hoya UV. These filters are all very expert; the reason to pay more than for the B+Due west is simply if you experience better with a $70 rather than a $43 filter on a $1,500 lens.

I got mine at Adorama. I’d likewise get it at Amazon or at B&H.

If you’ve constitute the attempt I’ve spent in sharing this professional review helpful, this free website’s biggest source of back up is when y’all use those or whatsoever of these links when you get
regardless of the country in which you lot live.

Thank you!


© Ken Rockwell. All rights reserved. Tous droits réservés. Alle Rechte vorbehalten.

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xviii Apr 2018, Nov 2014, November 2012. Shoot 11, 12 and thirteen January 2013