Canon 24-70mm f/2.8 II Resolution Tests
Here it is, only 6 months after announcement! The Canon 24-70mm f/2.8L II has finally arrived.
I’d love to say something like: “Never have so many forums contained so many threads containing such strong opinions from people who’ve never touched a lens.” But that would be silly. It happens just about every time a new lens is released.
Depending on whose opinion you read, the new lens is either the sharpest zoom every made or an overpriced piece of junk that nobody should buy. It’s been trashed for its price, for not having image stabilization, and for its filter thread size. Posted images made with it have been praised as sharper than primes and condemned as no better than its predecessor.
I can’t say I’m thrilled with the Mk II’s price, but the original Canon 24-70 could certainly be improved on. The original is a good lens, but not up to the standards of, say the Canon 70-200 f2/8 IS II. It definitely has some reliability issues and a lot of copy-to-copy variation, at least some of which relate to its design.
On the other hand, the Tamron 24-70 provides the image stabilization so many people want, but it’s beginning to show some reliability issues, too. Still, it’s $1,300 and has image stabilization. The new Canon is a breathtaking $2,300. For that kind of money it better have world-beating performance. Heck, for that kind of money it ought to carry my camera bag, frame the shots, and do the post-processing for me.
The Usual Disclaimer
This isn’t a lens review. I am not a reviewer. I don’t spend days evaluating a single copy of a lens for all of its traits and characteristics, nor do I take hundreds of really great photos with it and describe how it works in the field.
What I do is test multiple copies of the lens for resolution and other basic stuff. I think that is particularly important with this lens, as its predecessor has, perhaps, more copy-to-copy variation than any high-quality lens I know of.
A Quick Comparison
Looking from the side, the old and new lenses aren’t hugely different. The new one is a bit shorter.

From the front, the larger 82mm filter ring is apparent.

They extend a similar amount but the Mk II is extended when shooting at 70mm, like most lenses, while the old one extends to shoot at 24mm.

With hoods mounted you don’t notice the old version extend, since the hood is fixed and the barrel extends inside of it.

At 1.77 pounds, the 24-70 f.28 II is not a lightweight, but it is a bit lighter than the original 24-70’s 2.1 pounds.
Resolution Results
We measured 5 copies of the 24-70mm f/2.8 II at 24mm and 70mm. For purposes of comparison I’ll add the numbers we know from multiple tests of the original Canon 24-70 f/2.8 and Tamron 24-70 f/2.8. Since the sharpest Canon zoom we have at 70mm is the 70-200 f/28 IS II lens, I’ll add its numbers at 70mm. Just to make it really interesting, I’ll also add our sharpest 24mm lens, the Canon TS-E 24mm f/3.5L II (but remember, we’re comparing it at f/3.5 to the 24-70 at f/2.8).
| Lens | 24mm Ctr | 24mm Avg | 70mm Ctr | 70mm Avg |
|---|---|---|---|---|
| Canon 24-70 f/2.8 II | 954 | 831 | 950 | 809 |
| Canon 24-70 f/2.8 | 730 | 605 | 705 | 570 |
| Tamron 24-70 f/2.8 VC | 815 | 765 | 735 | 655 |
| Canon 70-200 f/2.8 IS II | xx | xx | 885 | 765 |
| Canon24 f/3.5 TS-E | 915 | 775 | xx | xx |
We also checked distortion at both ends. The Mk II has 2.45% barrel distortion at the wide end, 1.34% pincushion at the long end. The 70mm pincushion is exactly the same as the version I lens, while the barrel distortion at 24mm is slightly worse than the original’s 2.15%.
This is short, sweet, and simple. The resolution absolutely, positively kicks butt and takes names. It is way better than the lens it replaces. It’s better at 70mm than the best Canon zoom I know of, the 70-200 f/2.8 IS II. It’s even better at 24mm than the sharpest 24mm prime we have, the Canon 24 TS-E. In the center, in the corners, it doesn’t care. We only had 5 copies to test, but they were all very similar with little copy-to-copy variation.
Resolution is not everything, of course. But it’s certainly an important thing. Unless the real lens reviewers find some dramatic problems with this lens, I’d have to lean towards worth-the-money on this one. I can’t believe I’m saying that a $2,300 standard zoom is worth the money. But then again, I can’t believe I’m seeing a zoom lens out resolve a $2,000 world-class prime, either.
Roger Cicala
Lensrentals.com
September, 2012
117 Comments
Siegfried ·
Roger,
you forgot to *accidentally* drop it down the floor and then strip it down and show us what’s inside.
Zig
Roger Cicala ·
Zig, for an hour or two, all I’ll say is 🙂
But do check back tonight.
Roger
MCO_970 ·
Impressive results, Roger! Thanks for doing the testing.
Thomas Alicoate ·
Wow! Makes me feel bad I just bought version one.
Chris Wordsman ·
Its interesting to here how much it resolves than the other lens. But on which cameras will this much resolution be picked up on? Can you show a photo in which it demonstrates the resolving power?
Thanks for the actual lens test results!
Jordan ·
Even with the HIGH price tag, you must figure that if it’s sharp, relatively lightweight/compact and a common zoom range, then it’s worth it isn’t it? A working professional must have certain tools. This seems like a photojournalists DREAM, and a wedding photographers as well. As far as the average Joe, then I’d say yeah, it’s overpriced. I have the Tamron 24-70 VC and I haven’t had any problems with it yet and it’s very very sharp! Sure, this one is better, but that grand I can put into a completely new lens.
Bottom line: You have the money then it’s worth it but don’t go dipping into your life’s savings for it when there are other alternatives…
Thomas Alicoate ·
I forgot to ask before, how about that “focus accuracy with newer lens thingy?” Does this one have the higher accuracy feedback loop with traditional AF?
Thank you for all of this info.
Tom
Roger Cicala ·
Thomas,
You guys are all outing my next articles, aren’t you 🙂 Truth is we managed to get 120 shots to compare AF but they’ll be sitting on the computer for a few days. It will take several hours to run the images through Imatest and right now, with me writing all day, repairs are pretty backed up. Probably next week, though.
Roger
Zlatko ·
Thanks very much for doing these tests. A lot of photographers are interested in the results!
Brandon ·
Fantastic news, looks like it’s time to return my Tammy! Thank God for Amazon’s superb return policy.
Roger, do you have any inkling when preorders might be fulfilled and the lens will be readily available, perhaps based off previous trends? I’m hoping no more than 1-2 months…
P.S. Thanks for the early insight, you guys are awesome.
Roger Cicala ·
Brandon,
I’ve got no idea. Tyler managed to ‘leverage’ a few, as he put it. But we’ve got no hints on regular shipments.
Jacob ·
WOW, Roger… this is spectacular news! I sold my v1 of this lens back in Feb and have been dying to get my hands on # II. I shoot mostly Architecture, so the TS-E 24 L II is my bread ‘n butter lens. Am very much looking forward to seeing my new 24-70 compete with it… that is, if my pre-order (Feb) ever ships!
TeeCee ·
Hi Roger and thanks for the test – really impressive!
Do You have a resolution numbers for the Sigma 24-70/2.8 HSM?
Roger Cicala ·
TeeCee,
The Sigma 24-70 HSM resolves 728/622 at 24mm, but at the longer end it isn’t nearly as good: 563/500
James ·
I am not sorry to have version 1. At $2,300 for version two I would pass and rely on my 70-200 2.8 IS II. Incrementally I don’t think an upgrade from ver 1 to ver 2 is worth the cost
Colin Hackley ·
Thanks for posting this Roger, very informative. I hate to ask questions that could lead to more work, but how does the Canon 24-105 f 4.0 compare with the lenses you mentioned above? Thank you.
Roger Cicala ·
Hi Colin,
Not any work, I have the numbers for all the lenses. I just didn’t put up the 24-105 because it was an f/4 lens. The 24 -105 resolves at 890/735 at 24; 820/660 at 105 at f/4. Unfortunately I don’t have the numbers at 70mm available, but I recall they were very close to the 24mm numbers. It doesn’t start to soften until 90mm or so.
Roger
Dr. Mike ·
Can’t wait to see if this lens has the rotation detector you found in some other new Canon lenses. 🙂
But wait, at this price I’m not sure I really want to know! It would kill my budget if I have to buy one. 🙁
Moany ·
Hi Roger
Thanks for the impressive report. I heard from one who tried one copy of this lens in the local shop and noticed slight knocking noise from the barrel when tilted from vertical to horizontal. Sounded like loose assembly. Not sure if it was one off issue. Did you notice such abnormalities in the copies you tested. If. Yes, is it acceptable?
Roger Cicala ·
Moany,
I didn’t notice anything like that. I was checking too, because I wondered if it really needed the zoom limiter switch for zoom creep (none of them did).
Roger
Steve Crews ·
Any chance that my 24-70mm f/2.8 mkI rental will be upgraded to a 24-70mm f/2.8 mkII that I am scheduled to rent in 2 weeks?
Ray Chen ·
Is that the 24 TS-E II or the original one?
Roger Cicala ·
Hi Ray,
It’s the II. I should have made that more clear. Thank you!
Brian ·
That hood on the new lens looks completely stupid…looks like something you would find on a cheap EF-S lens
Maxis Gamez ·
Thank you for the amazing results Roger. Do we know when the lens will be available for rental? I’m going to the Grand Canyon in a couple of weeks and would like to rent it for 10 days.
Thank you!
Roger Cicala ·
Maxis,
We got 5 today, with a waiting list of 20 people already. None of the places we buy from got their complete order filled, or even close to it, so I just don’t know when we’ll get more. But Tyler is amazing, he’ll have them trickling in over the next couple of weeks. Hopefully we’ll have one.
It’s funny you wrote this because I’m being burned at the stake in some forum because ‘he’s just wanting to rent those lenses’. I wish we really had some to rent. If I was a great businessman, I would have said the new one sucked because we sure have a couple of hundred of the old ones on the shelf. 🙂
John ·
Hi Roger,
Thanks for the review. What do you think the lens compared to Nikon 24-70 2.8? Do you have the resolution number for the Nikon lens? Thanks a lot!
John
Roger Cicala ·
Hi John,
On a D3x (our usual Nikon test camera, and a good match since it’s about the same number of pixels as the Canon 5D II test cameras) the Nikon 24-70 resolves 890 / 735 at 24mm; 830 / 720 at 70mm.
That makes sense: the Nikon is a bit better than the original Canon, not quite as good as the new one. It’s technology is several years old, compared to over a decade for the original Canon and this year for the new one.
Roger
Colin Johnson ·
Your previous review of the new 24mm and 28mm lenses with IS stated that the 24mm F/1.4L II has a resolution of 930 – 780 shot @ F/2.8, making it a higher scorer than the TS-E.
Does 954 – 831 makes the new 24-70 have more resolving power than the 24mm F/1.4 II then and should I buy the 24-70 over the 24 prime?
Roger Cicala ·
Collin,
Thank you, you are absolutely correct. In all the rush and excitement yesterday I completely forgot about the little 24 and 28mm f/2.8. The 24-70 II though still has an advantage, particularly in the corners and edges shown with the weighted average: 830 for the zoom to 780 for the prime. The centers are certainly too close to call.
We do all of our routine testing wide open — the purpose is to find bad lenses and wide open does that best. I did find one series I did some months ago with a set of 10 24 f/1.4s at f/2.8. The numbers were 940 in the center, 750 weighted average. Again, right up there with the zoom in the middle, but not quite as good in the corners and edges.
Roger
Victor Wolansky ·
There will always be conspiracy theorists nuts……
Qapta ·
Roger, what was the testing camera? Thank You.
Roger Cicala ·
Qapta,
We tested on 5D IIs simply because that gave us a comparison to the other lenses which had been tested that way. My experience is IIIs have just a tiny bit higher resolution, but not siginficantly different.
Massimo ·
Very Interesting ! Higher MTF will be mandatory for next generation camera with high megapixels because of the smaller pixel size which is obviously more demanding for the lens (and I believe that Canon will not be so stupid to leave this market to the Nikon D800 only).
But what about CA (Chromatic Aberrations), have you tested this ?
Current 24-70mm have good CA performances compared to Nikon 24-70mm and this is very important as new MegaPixels sensors will require more accuracy and will suffer from higher CA respect to smaller MP sensors.
It’s my opinion that new generation TOP lenses from Nikon/Canon will cause higher CA. I’m currently very disappointed with Nikon 24-70mm which have already high CA with smaller MP sensors. Nikon 24-120mm (which is more recent) have sligthly lower sharpness but also much lower CA. Nikon current approach is currently to reduce CA in the software, and while this is an acceptable approach for some users it’s of course not the best solution; they have a high MP camera but not really a good lens for it !
I hope that Canon have addressed this issue also but I’m also worried that the extremely higher MTF in this new lens may have been achieved at cost of higher CA. Please someone answer to this if you can !
Laurent ·
Well, thanks for this insight.
Do you please know how, say, the 50 f/1.4 performs in this respect
at max aperture and f/2.8?
(I take this 50mm because it is said to be the sharpest of the series,
even better at f/1.2)
I also would like to know same data for the 85 mm (not close in focal range, but that is a some tradeoff in focal range that I would be ready to do if that lense was so awesome).
Thanks for all.
Seems Canon made good work this time^^, glad to be ready for it!
Lynne Hall ·
Any chance of any figures to compare the resolution of this zoom with equivalent Nikon zoom and prime lenses? Currently trying to decide between the Canon 5D Mark III and the Nikon D800 and that might make a difference.
Roger Cicala ·
Hi Lynne,
This article: http://wordpress.lensrentals.com/2012/03/d800-lens-selection has a lot of numbers for good lenses shot on D800s, although those are all at ‘best aperture’, usually f/5.6, so the Nikon numbers have a strong advantage. This one compares some excellent primes between 5DIII and D800 (zeiss, so we could put the same lens on the same camera: http://wordpress.lensrentals.com/2012/03/d-resolution-tests and shows some f/2.8 numbers.
There’s no substitute for resolution and you’ll see the d800 is higher across the board. If you’d be considering a DIVs, or whatever Canon’s going to call it, that should have the pixels to compete with the D800.
Roger
Markus ·
Roger,
how does this compare to the Zeiss lenses , e.g. the 21/2.8?
Seems like Canon has finally found the road to building very competent wide angles (17 & 24 TS lenses, 24 & 28 IS lenses). Which is good as more choices are always a good thing.
And they seem to pay a lot of attention on good & professional build quality (5D III, 24-70 II), managed to reduce the weight of the super teles a lot, etc. – in my opinion, this time they got the memo what really matters to working photographers and how to build up a reputation (again). I like their focusing on no-nonsense stuff (even if a lot of people won’t notice because they’re just looking at specs without even having the cameras at hand).
Thanks for your great work – I’m enjoying your site more than all the usual review stuff out there! It’s just so much more taken from ‘real life’.
Markus
Greg Benson ·
I think you meant to write the “70mm pincushion”, not 24mm.
Roger Cicala ·
Thank you Greg. Corrected!
Actually churning out two articles in one afernoon I’m pretty proud that’s the first mistake anyone’s found 🙂 Most of that credit has to go to Drew who took time to proofread on a day he really didn’t have time.
Roger
Johnny from Italy ·
Amazing infos, thanks for sharing your resolution tests!
What about CA and PF performances?
Any chance to see some comparison in jpeg taken in studio and in real shooting situations?
Roger Cicala ·
Johnny,
Unfortunately I had 4 hours with the lenses before they had to go to packing. I got to take photographs of test charts and a few indoor shots of parts bins. Nothing worth putting up.
anatoly ·
I think it is the way big companies promote their new product. They fund an expert to say whatever they want him to say and in 30 minutes everyone is
so intoxicated. Com-on people! THEY HAVE TO JUSTIFY THE REDICULOUS PRICE and they gave Roger a bit of the boost!!! Could have been a couple of free lenses to a lot of the money – depending how many people visit the site…
It is probably very sharp but it can not be that much sharper then the version 1!!!! NOT A $1000 SHARPER!!!!!!!
rejumon ·
I think you meant to write the “70mm pincushion”, not 24mm
anatoly ·
It is THE NEW ERA NOW!!
I think it is the way big companies promote their new product. They fund an expert to say whatever they want him to say and in 30 minutes everyone is
so intoxicated. Com-on people! THEY HAVE TO JUSTIFY THE REDICULOUS PRICE and they gave Roger a bit of the boost!!! Could have been a couple of free lenses to a lot of the money – depending on how many people visit the site…
They gave a brand new $2000 lens to take to pieces…. It is probably very sharp but it can not be that much sharper then the version 1!!!! NOT A $1000 SHARPER!!!!!!!
Roger Cicala ·
Anatoly,
Do paranoid a lot, do you? I’ve said this many times before, I’ll repeat it again. We don’t get anything from Canon. We don’t even get priority on shipping. The lenses we got for this test we received buying retail from some friendly stores, just like you do. We can buy direct from Canon at a very small discount because we’ve registered to do so, but only get shipments from them after all the camera store orders are filled, so it’s not very useful.
We also don’t get anything from Nikon, Olympus, Sony, or anyone else. Nor do I get $0.25 when you click through a link to purchase anything. Cause, well, I don’t have any purchase anything links. Unlike most real review sites, I also don’t get samples from the manufacturers to test. If I tested it, we bought it. At retail.
Truth is I’m fairly widely hated by a number of manufacturers because I write about stuff they don’t particularly want you to know about. Not to mention several of them really, really hate all rental houses because they’re convinced every rental is a sale they’ve lost. I’ve never gotten even a thank you note from a manufacturer, although I have gotten a couple of threatening letters and phone calls when they don’t like what I say.
Just because I’ve heard it enough to know where paranoia will take you next, I also could care less what you rent. We make the same return on investment on a filter as we do on an 800 f/5.6 L or a D800E. I do want people to know what they’re getting because nothing is worse for us than someone who rents an item and then finds out it wouldn’t do what they thought it would.
If I did care what you rented, it would be pretty stupid for me to tell you the lens I have 5 copies of is way better than the one that I have 150 copies of sitting on the shelf not renting.
Roger
BTW – I’m not an expert. I’m a geek with lots of testing equipment, lots of lenses, and lots of curiousity. Rob Galbraith, Brian Carnathan, Dave Etchells, Lloyd Chambers, Thom Hogan and guys like that are photography experts. I just have more toys than they do. I get a few hours to do quick stuff like this, then I wait for their detailed reviews just like everyone else.
And finally, do you really think we took it apart and threw it away? It went back together, got retested and is already in a renter’s hands. Taking lenses apart and putting them back together is what we actually get payed for around here. Jeez.
Maxis Gamez ·
Thank you Roger for the reply!
steve bryson ·
I remember at the UK Focus on Imaging show, when I exclaimed a little bit of horror at the projected price the guy at the Canon stand said – “This is sharper at the corners than the old one is at the centre….”
Nice to see a good result!
Err ·
Thank you for the excellent test. To me it was a big surprise that a zoom can outresolve the 24mm TS-E II.
One question popped into my mind: How if/can these resolution numbers compared to numbers of other formats, specifically the Panasonic 12-35 from your earlier blog?
http://wordpress.lensrentals.com/2012/06/a-weekend-with-the-panasonic-12-35-f2-8
E.g. can we say that when printed the 12-35 picture (taken with 16MP body) will have slightly more detail than the Tamron but slightly less than the new Canon (using 5D Mk II)?
Michael ·
Roger, thanks for the feedback on the new 24-70 lens.
The MKI is my go to lens in low reception lit rooms. Mainly b/c of it’s ability to grab focus quickly and accurately. I’m wondering how the new one compares and if IS slows it down at all.
thanks,
Michael
Gino Creglia ·
Thank you for the review. Looks like the new zoom lens will compliment my 16mm-35mm II and 70mm-200mm II lens. Can not wait to get my hands on the 24mm-70mm. G.
Laurent ·
Well, actually I remembered that article: http://wordpress.lensrentals.com/2012/01/the-great-50mm-shootout
so I answered my question myself, at least for the 50 mm:
at f/2.8, the 50mm f/1.4 is 920/690, and at f/4, 960/890.
Which means that if the 24-70 mm mk II lens is as constantly sharp at 50mm that it is at 24 and 70, well, it is properly monstruous on the center with a 950 index on par with the best of the f/1.4 lens.
Not as good on the corner but still superior at f/2.8 with around 830 or 800.
Completely Awesome.
Feels like this lens is worth a good bunch of money, since it could potentially replace a good number of primes. It sharper than their recent wides, than their pancake, than their family of 50mm that are already quite good, and I could not find some numbers for 85mm that are comparable to these (I don’t know what unit is used here and 85mm are around 3000 line widths per picture height on MTF50 lmatest), but I would bet that performance is similar or even superior.
Next lens to buy on my checklist. Quite expensive together with 5D3 or 1DX but Awesome is worth it, I guess.
Carl ·
Great lens but I’ll get the Tamron. It is almost there!
Carl
Juan José Pascual Lobo ·
Last spring Canon Spain made a demo sesion of this lens and the new EOS 1Dx, both preproduction samples at Fotocasión, the leading photo dealer in Spain. I tried the lens and I was really impressed. The only drawback was, as Roger states, just a bit more distortion at 24mm than it´s predecessor, but resolution was really impressive. If production samples are the same quality, (I made my test at the shop and it´s fully repeatable, in the very same conditions), I’ll buy one for sure!
Bob Howland ·
Roger, you wrote that all the lenses were similar in quality. Did all of the lenses tested have similar serial numbers? Are lenses, Canon and otherwise, produced in lots? Could there be substantial lot-to-lot variation, but relatively little within-lot variation? How would people in our/your position even detect that, even if it was true?
I hope that wasn’t too confusing.
Roger Cicala ·
Hi Bob,
Makes perfect sense. We have seen lot-to-lot variation sometimes, so a pertinent point. Although usually ‘first lots’ are the bad ones.
But you’re correct, all of these were 9200004XXX serial number lenses.
Roger
Fabio Bernardino ·
If you have the numbers, I’d like to see them for the Tamron 28-75/2.8. At the time it was launched I recall reading somewhere that was sharper than the 24-70 but not sure if it was across all the range.
Great and helpful work, as always.
alek ·
Hey Roger,
Don’t let the “Anatoly’s” of the world get your goat. In terms of comments, he’s outnumbered at least 10-1 by positive “Thank you Roger” comments … plus I assure you there are many, many other people who don’t chime in (I wasn’t going to until I read your “paranoid a lot” reply to him) who think you are doing a great job.
Yes, I’m sure the vendors don’t like you candid reviews … but what their short-sighted marketing departments fail to realize is you have credibility. So the fact that you call a Spade-a-Spade means when you say something is good, it actually is! 😉
Thanks for taking the time to share your findings … and this engineer also found your 24-70 breakdown post real interesting – where else can you read stuff like this besides LensRentals!
alek
P.S. You did make one incorrect comment – “I’m not an expert” – your stuff is absolutely top notch.
Renaud ·
One thing I do not find in other reviews: the ability to test multiple copies of the same lens,though sometime they may belong to the same production batch. Thank you for this useful work and for sharing the results.
Renaud
Stu ·
Hi Roger,
Great information, really useful and appreciated since all we have to do is read 🙂
One small question, do you per chance have info for the 70-300 f/4.5 & 70-200 f/4 IS please for comparison – trying to figure which lenses to exchange for the 24-70 MK II
Thanks again for your work
Stu
Roger Cicala ·
Hi Stu,
I guess I should post our standards for all the lenses one of these days. The 70-300 resolves at 800 / 720 at 70mm; 795 / 690 at 300mm. But remember that’s at f/4 and f/5.6 respectively.
Roger
Ryan ·
Could you post the numbers for the 17-55 for those of us on crop and still dreaming…
Thanks for all your articles. They are great.
Roger Cicala ·
Ryan,
Crop numbers are really different than full-frame numbers. Remember we’re measuring line pairs per image height so we’ve changed image height and density or pixels, etc.
Probably the only way you can put them in common is think “If I printed an 8 X 10 with each, then line pairs per image height would give some idea of possible resolution of the picture”. But lots of other factors are going to play into that like noise, dynamic range, etc. etc. FWIW the 17-55 resolves at 750 / 620 on the 7D. But it’s really hard to compare that to the same resolution on a 5DII when you think about images.
Roger
Stu ·
Roger
Useful info – we can never get enough of it 🙂
Thanks for the prompt reply and the numbers. I’d never say no to a link to any stats you have, but as most, I’m grateful for what you have provided.
Cheers
Stu
Arun ·
How many copies of the 24 TSE were used for its numbers?
Tx!
Roger Cicala ·
Arun,
It was 22 copies of the 24 TS-E
John ·
Hi, Roger….thanks, again, for the excellent info.
While I am sure the 24-105 is not in the same league, for “completeness” it would be great if you had some comparable resolution info available for us.
Thanks…John
Roger Cicala ·
John,
The 24-105 is quite good (although it gets full-stop advantage), resolving at 835 / 820 at 24mm. I don’t have 70mm data on it, but the numbers should be simila. It does soften up at greater than 90mm a bit.
Roger
Francis ·
Your finding of the lens being sharper than the 24mm TS-E Mk II is being widely quoted out of context. The missing context is of course the distance from your test subject. I don’t know what that was, but I imagine around 2 to 3 metres.
Now, if I were designing a 24-70mm zoom for event photography and photojournalism, I rather think I’d optimise it for distances at around 2 to 4 metres. If I were designing a 24mm tilt-shift lens for landscape and architecture, I might choose a longer distance. It’s therefore quite wrong to conclude that the zoom is going to produce higher resolution in actual use. Which, to be fair, I don’t think you actually said.
Of course it doesn’t matter to experienced photographers. They will choose a lens on its the ability to zoom or to shift and tilt, depending on the application, rather than second-order differences in resolution. You even hinted at that, too. But your results are being commented on by inexperienced photographers far and wide. The problem is compounded by the fact that these are also the same kind of people who attribute magical properties to the 24mm TS-E Mk II; while it’s a good lens, mine’s not *that* much better than some others, and its reputation could have more to do with people tending to use it on a tripod.
Roger Cicala ·
Francis,
That is an excellent point and very valid. Imatest is always done at fairly short distances and at the shorter focal lengths they’re quite short even with the largest chart. At 24mm we’re working at under 3 meters. I would not be shocked at all if the 24 TS-E is the sharper lens at or near infinity. On the other hand, it was still one of our top resolution lenses tested at the same distance.
Herbert,
We took delivery and initial training on our optical bench about 2 weeks ago. We’ve been so busy, however, I haven’t even started to do large batch testing on a groups of lenses to establish a database and evaluate our reproducibility. We’ve also had a bit of trouble engineering the lens mounts to tolerance (this is a custom built machine with interchangeable mounts and of course it would be the Canon mount that was out of sorts). I should start doing Imatest – optical bench comparisons in the fall.
Deedra ·
Roger,
Thank you for taking the time to test these lenses and for giving an honest account of what happens when a real person uses them. I love reading what you have to say about them. Always honest and even funny! My 24-70 mk1 has been toast for a while now….so inconsistent. It hasn’t been on my camera in months. I’m looking forward to checking out what this new lens will do for myself! Already reserved my rental in a couple of weeks!
Thanks again!
Cecilia ·
I really appreciate the review and particularly the resolution numbers! Might you have any of those numbers/results from a past of review of Canon 16-35L f/2.8 zoom for comparison at, say, 35mm or wider? I’ve loved the sharpness of that lens and am wondering how the new 24-70L ii stacks up against it.
Roger Cicala ·
Cecilla,
The 16-35 f/2.8 II resolves 895 / 715 at 16mm; 775 / 630 at 35mm.
The resolution questions are beginning to make me realize just how much data we have that I’ve never written up. I’ll need to make a post with all of these numbers some day.
Roger
Cecilia ·
My apology for two posts in a single day; I’m serious about possibly purchasing this lens. I realize the tests were done with a 5d Mark iii body. (I have a 5d Mark ii body and cannot possibly hope to upgrade to the Mark iii at this time if I was to purchase this lens.) My question is, (I know tests weren’t done with a Mark ii body) in YOUR OPINION, would the results of the Mark ii LENS (resolution, contrast, etc) be significantly different used with the older camera body for which it was likely not designed for? (As for focusing speed, that’s a non-issue for me; since landscapes are my main subject, I’ve never experienced the problem of slow focusing that many have complained about regarding the Mark ii body). Thanks for any info you can provide.
Roger Cicala ·
Cecilia,
These tests were done on 5D Mk II – that’s our standard test cameras.
Roger
Doug R ·
Roger,
Great article and valuable information indeed.
I have one of the old 28-70 f2.8L lenses, that I currently quite like though it is quite a brick to haul around. I’ve been told that the 28-70 had superior resolution to the original version of 24-70 f2.8. Do you happen to have 28-70 resolution information for that lens?
Thanks much in advance,
D.
Cuson ·
Great review, can you tell me what is the meaning of Ctr from the comparison table?
Blaise ·
Excellent review – the ability to test 5 lenses instead of just the random 1 is great.
I guess the only question I now have is how do these numbers convert in the real world 🙂 This extra 100 points – what does it mean concretely.
thanks,
Blaise
Roger Cicala ·
Blaise,
I can’t say for overall use, because the real world isn’t testing at 22 feet like Imatest. But at that distance the resolution numbers translate into a significant SQF (Subjective Quality Factor like PopPhoto uses) meaning you could certainly tell the difference.
Now that may disappear or be reduced at infinity (I have no clue yet) or with real-world focusing variations, etc. That’s why I said, just like everyone else, I’m waiting for the reviewers to come out with more complete evaluations. But this certainly looks promising.
Roger
Tony ·
The numbers you posted on this lens wouldn’t qualify for a recommendation over on your Nikon D800 lens recommendation list. In fact the Nikon 24-120 got higher results but it still didn’t qualify. There are 5 Nikon zooms that did qualify; some were nearly as much better than the 24-70 II than it was over the mark I. Does this get credited as the advantage of the Nikon sensor? Or is hopeless to try to make any cross-brand comparisons?
Roger Cicala ·
Tony,
Exact comparisons are hopeless at the exact level, but there’s no question 36 Mpix ups resolution. When we get our true optical bench up we could do an exact lens-to-lens comparison, but Imatest can only compare a lens-camera combination. All of the Nikons tested on D800s are going to have higher resolution because of the camera.
It was a bit more reasonable to compare the D3x to the 5DII since camera resolution was comparable. Even, then the Nikon 24-70 was very good, resolving 890 / 735 at 24mm and 830 / 720 at 70mm. So the Nikon was clearly better than the original 24-70 Canon, probably not as good as the new one. Speaking strictly resolution shot at short to mid distances. But mount the Nikon 24-70 to a D800 and resolution increases to 1000 / 840 at f/2.8.
Imatest is testing the camera lens combination, so change the camera and you change all the numbers. But I’d be comfortable saying a good shot on a D800 with a Nikon 24-70 outresolves the Canon II on a 5D III. Then again, put the Nikon lens on a D700 and it’s not close to the Canon.
Roger
Robert ·
Roger – exzellent review ! I have mine received yesterday ! First tests show up the great resolution this lens has !
but what interests me – how it compares with the 70-200 f4 L IS at 70mm ? Thx !
Mark ·
I love reading your reviews. How’s that for short and sweet. Ignore the, as an infamous VP once said, nattering nabobs of negativity. You tell it like it is. Very refreshing in this day and age of paid consultants.
Karl R ·
Roger,
As usual, you provided a solid review and thanks for taking the time to test the new lens and post the results here.
Karl R
Jurjen Drenth ·
Thanx Roger, you did a good job, but still so much money for a lens without stabilizer; I always do handheld street photography and even when I shoot at 1/60th sec then I would be curious looking forward to a test of both lenses; the new Canon 24-70 and the stabilized Tokina and the handheld results ! Besides I often work handheld at 1/15 or 1/8th sec so a stabilizer really should help.
And the newer 70-200 seems to have a less nice bokeh than the older version; thats what somebody told me after buying the new lens. I am very satisfied about the ‘old 24-70 Canon and like the bokeh even more than the 24-70 Zeiss lens ! So I a also curious about the bokeh of the new Canon 24-70 lens ! bokeh defines its character…
Roman ·
As I can see from some tests this second version is far better than its predecessor and even anything in this class (Nikon 24-70 for instance). No it has BRILLIANT image quality. I was impressed.
Tim ·
Roger,
Do you guys have any FF resolution numbers for the Canon 24L Mk II? I have the 24-70 Mk II on order with B&H and will have to make a decision on what to do with my 24L II. Photozone’s figures actually have the 24L II outresolving the 24 TS-E, both in the center and noticeably at the borders. They just released their 24-70 II figures and the 24L II also outresolved it, particularly at the borders. Just curious if you had any findings to confirm the same? Thanks.
Roger Cicala ·
Tim,
I only have them wide open, which isn’t much help I’m afraid.
Roger
Mark Carey ·
I have been using this lens for a few weeks now and I have published some of my thoughts here – not very technical but will hopefully inform people of what one photographers first impressions are:
http://www.markcareyphotography.com/2012/jo-and-karim-canon-ef-24-70mm-f2-8-ii-usm-l-review/
Michael ·
Roger,
Thank you for the review. I really trust your reviews. I do have one questions or you. Ive seen sample images of the Canon 24-70 ii and Tamron 24-70 VC I’ve seen on Flickr and other sights. The all the canon images seem more detailed and clear than the Tamron images. Especially in the edges. The other factor is the bokeh. The bokeh on the Canon appears very smooth and the Tamron appears busy (even without the onion bokeh factor.). Is this what you have noticed as well. Could it be the people using the more expensive new Canon 24-70 have more experience or better cameras? Although I have seen talented people shooting with the 5D3 and the Tamron and the image is not as clear as expected.
Sincerely,
Michael
Roger Cicala ·
Hi Michael,
I think there probably is some truth to the more experienced photogs with better cameras tending to have the 24-70 Mk II right now. On the other hand I do think the Canon II is the sharpest lens. I can’t comment much about bokeh, I just don’t evaluate that.
I see the Tamron as a very good compromise lens: not quite the sharpness (or range, it’s not as long) and a bit more distortion. But it does have IS and it’s sharper than the original Canon, which makes it a very nice option.
I think the Canon II is the better lens, but I wouldn’t go so far as to say it’s worth the price difference. You can buy a decent prime lens and the Tamron for the same money as the Canon.
Kai ·
Roger,
Any chance you will have time to follow up on your promise from Sept 11 2:27pm, on getting focus accuracy data up in a new article?
Thanks, Kai
Roger Cicala ·
Kai,
Hopefully next week. I’ve gotten some good information but I have to find out whether I can quote my resources or not.
Scorpius ·
Looks like an amazing piece of glass,loving the fact that its lighter too.. hopefully the 85mm 1.2L will get this treatment soon.. it’s fab but a monster in weight.
Scorpius ·
BTW.. Many thanks for posting this Roger…
Clyde ·
Much thanks for the info. Your approach certainly inspires confidence to give one a sense of having a grasp of the overall significance of this lens release. Do you think it is at all likely that Canon will do an upgrade of the 90mm t/s anytime soon? If you have it available, I would really appreciate having the resolution figures of the present version of the 90 t/s as well.
Regards,Clyde
Gerd ·
Thanks for the Info. It really helps to make a decision.
For my opinon resolution is one of the major issues for crisp images.
It brings it closer to apo correction, white shows white and black shows black.
Jarj ·
I have owned the 28-70 f2.8, the original 24-70 f2.8, the 24-105 f4 and now the 24-70f2.8 II. I am not a professional reviewer or a dealer and I get nothing whatsoever from Canon. All of the equipment I own I buy retail preferably from my local dealer. The new 24-70 f2.8 II is an exceptional lens. The first 24-70 was a great lens which good detail, colors, contrast, etc. The 24-105 f4 was also a great lens, slower but longer and with IS. The detail on the 24-105 was crisper compared to the 24-70 I but ultimately I preferred Leica and Zeiss rangefinder lenses. I eventually decided the Leica and Zeiss lenses were better because the detail was real, not computer generated. The new Canon 24-70 f2.8 II is closer to the Leica and Zeiss lenses. The image straight out of the camera is close to great without any post processing and I only sharpen about half of what I did with the earlier lenses. More importantly everything is sharp, not just the edges of lines and the image seems more real, almost three dimensional. Now the only reason to own a fast prime is to get shallower depth of field.
Eric Meola ·
As most wide angle lenses (and the 24-70mm II at 24mm is not an exception) have a significant amount of curvature of field, how do you determine edge resolution figures that you feel are accurate ? In other words, if you are testing a telephoto lens, photographing a flat field is relatively more reliable in terms of measuring resolution out from the center. But when a lens has significant field curvature, how can you come up with numbers that accurately indicate sharpness away from the center?
Roger Cicala ·
Eric, all of our measurements are ‘best cener focus’ based. So field curvature would make the corners appear softer than they are.
There’s no ‘right’ way to do it, we feel this is most like real world.
Bob B. ·
Roger…you do a GREAT job and I TRULY respect your information because you qualify everything you say with solid logical information an intelligent references that have meaning. Plus all of your experience. The other thing is…you generally never take yourself all that seriously and you are open to all info and opinions, but you can still stand your ground when you believe in something.
KEEP IT UP…WE LOVE IT!
Doc Searls ·
Another difference: zoom operates in the normal way, becoming longer toward 70 and shorter toward 24. The old lens worked the opposite way, and drove me nuts.
I’m renting one of Roger’s new lenses right now and loving it.
lisa ·
I also want to know how the operation work? did anyone answer doc searls??
John M ·
A lot of people have noted that the original lens barrel extended as the focal length decreased, backwards from what we’re used to. Maybe I’m missing something, but with the hood fixed, this is as it should be if you want the hood to function at both 24mm and 70mm. At 24mm, the barrel is closest to the front of the hood so the tulip edges allow a wide field-of-view. At 70mm, with the barrel fully retracted, the hood now allows a smaller FOV which is correct if you’re trying to minimize the effect of light sources out of the FOV.
The Mk II lens hood attaches to the barrel. If we assume that the hood is designed to be tight at the 24mm setting (just barely out of the FOV, causing minimal vignetting), then at 70mm the hood does nothing but act as a bumper to protect your lens. It certainly won’t do much to prevent haze from strong side sources.
michael ·
Hello , i got that lens a week ago.I noticed softness issue on the right side of the images ( corners up and down ) at 24mm and 35mm from F2.8 – F4. The left corner is not that bad but the right is a little bit softer. I compared my 24-70 2.8 ll with the 70-200 2.8 ll at 70mm and to be honest im very impressive. I found that 24-70 ll is little bit sharper at 2.8 in the center and in the corners. At F4 they are very similar even in the corners. Why there is softness? probably this lens produce sharp images from edge to edge?
Roger Cicala ·
Michael, it sounds like you may have a decentered copy. The lens should be better than what you describe.
Andy ·
Hi Roger,
I’m finding with my copy that even at f8 a little soft towards centre edge of frame when taking full lengh portraits @ 50 mm.
The body will be pin sharp but the face is definitely a little soft, even using live view to focus on the face.
Should this be the case?
Cheers,
Andy.
Roger Cicala ·
Andy, definitely not. Sounds like it may be a decentered copy. It should be tack sharp across the frame.
Andy ·
Thanks for the reply Roger.
I thought not also.
I picked up another copy today and it is a lttle better across the frame, but still not as sharp as the centre @ f8.
With the second copy, colour moire is stronger and also red CA on the chart I am using for testing. Sorry to ask, but is this normal? In a way I hope so, as I don’t think the shop will let me have another copy. I wish I could send you a sample to look at.
Cheers,
Andy.
Roger Cicala ·
Andy,
One thing I will note is the 24-70 II is going to be softer in the center at f/8 than at f/5.6. It is at maximum sharpness at f/4. After that diffraction, while mild, is definitely going to be present. That’s unusual to see at this aperture but most lenses are getting sharper stopped down and that more than offsets diffraction. The 24-70 II is not getting sharper stopped down past f/4 so all you see is the diffraction, at least in the center.
Andy ·
Sorry Roger, I don’t think I was very clear in my previous question. What I meant to ask, should at f8 or 5.6 (50mm) give you the same sharpness at the centre edge (left & right) as in the middle of the frame?
Thanks again,
Andy.
Roger Cicala ·
Andy, at f/5.6 it should. At f/8 it would be very close. The sides should be at least as sharp as the center.
Andy ·
Hi Roger,
Last question, promise.
My copy isn’t, so can it be brought up to spec ?
Thanks,
Andy.
Roger Cicala ·
Andy,
It certainly can be. Canon can adjust them back to where they should be. Just be specific where the problem is – which focal lengths, what part of the lens at what aperture, etc.
Andy ·
Thanks Roger for all your help.
Ill get In touch with Canon Uk. Mind you after my last experience with them I won’t hold my breath. It took them 3 attempts to calibrate my bodies/ lenses. So I’m not sure…Can I ship it over to you guys….
Cheers,
Andy
Andy ·
Hi Roger,
I’m getting awful flare, even when the sun is not in the frame and quite high.Its not even attractive flare.
Is there any thing that can be done apart from trying to shield it?
Regards,
Andy
Andy ·
I returned the lens to Canon Uk and they told me it was within Canons Spec’
It might be sharper in the centre than my old mk 1,but flare,distortion and vignetting are worse.
Thanks again for you help though.
Regards,
Andy