CANON 28 70 L F2 USM - Technical Review
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- Опубликовано: 10 апр 2022
- The RF 28-70mm F2 L USM is an incredibly bright L series zoom lens designed to bring unparalleled performance to Canon's EOS R full-frame mirrorless camera system. Stellar image quality is delivered from corner to corner thanks to the combination of a large 54mm diameter mount and short back focus distance. A rugged design and consistent f/2 brightness throughout its zoom range make the RF 28-70mm F2 L USM ideal for portraits, wedding photography, landscapes, nightscapes and more. It's made for photographers and moviemakers who want a bright view, sharp detail, gorgeous blur and the professional performance of Canon's L series.
The Canon 28-70 would make a great companion lens for the Canon R7 and new R10.
The Canon RF 28-70mm F2L USM is a super-fast zoom lens for the company's full-frame mirrorless system. This durable, weather-sealed lens features UD lens elements as well as Air Sphere, Super Spectra and fluorine coatings. It has a nine-blade aperture, 39cm (15") minimum focus distance and uses 95mm filters. There's also a customizable control ring that can serve a variety of purposes.
A 24-70mm f/2.8 lens is often the go-to standard zoom lens for professional photographers, so the Canon RF 28-70mm F2L USM is rather unusual, starting at a slightly longer focal length but having a stop large aperture. That extra brightness could be helpful in low light conditions or when the background needs a bit more blur, but it makes the lens very bulky.
Inside the Canon RF 28-70mm F2L USM’s weather-sealed barrel there are 19 elements arranged in 13 groups with four aspherical elements and three ultra-low dispersion (UD) elements to maintain detail across the image field and limit distortion.
Canon has also applied its Air-Sphere Coating (ASC) and Subwavelength Structure Coating (SWC) on the surface of some elements with the aim of suppressing flare and ghosting.
Focusing is handled by Canon’s Ultra Sonic Motor (USM) system.
The lens has no stabilisation built-in, but the Canon R5 and R6 both have in-body image stabilisation (IBIS).
Although you can check the specifications and see that the Canon RF 28-70mm F2L USM weighs 1430g and measures 103.8 x 139.8mm, it’s only when you hold it, or compare it to another lens that you realise just how big it is. It’s 530g heavier than the Canon RF 24-70mm F2.8L IS USM, for example, which measures 88.5x 125.7mm. And it’s 360g heavier than the RF 70-200mm F2.8L IS, which measures 89.9 x 146mm.
It also has a 95mm filter thread, which is likely to mean that you need to upgrade your filters.
I used the RF 28-70mm F2L USM on the Canon R5, which itself weighs 650g, making the total weight over 2Kg. That is a lot for a ‘standard’ zoom lens set-up, but the word standard doesn’t seem applicable to a zoom lens with a constant aperture of f/2.0.
The RF 28-70mm F2L USM also has three control rings, one for the focal length with markings at the 28, 35, 50 and 70mm points, one further forward for manual focusing and a front ring that can be customised to adjust one of a long list of parameters. I used the control ring to adjust exposure compensation, which is very handy with such a big, heavy lens as it needs a supporting hand and the ring falls within easy reach of your left thumb and forefinger.
As I’ve mentioned, I tested the Canon RF 28-70mm F2L USM on the 45Mp Canon EOS R5 and they make a fine pair, capturing a high level of detail with no major flaws - but you’d expect that at the RF 28-70mm F2L USM’s price.
Curvilinear distortion is kept under control very well, but if you turn the correction profile off in Adobe Camera Raw, you’ll see a slight hint of barrel distortion at the 28mm point. It’s hardly worth mentioning, especially as the profile, which can be applied in-camera or at the processing stage, irons it out.
Sharpness levels are also very good although it’s worth avoiding the smallest aperture setting (f/22) if you can. There’s also a slight loss of sharpness towards the corners of the frame, particularly at the widest end of the lens when the aperture is wide-open, but this isn’t apparent in most real-world photography. Closing down to f/2.8 and f/4 improves the corner sharpness.
Unsurprisingly, the corners are best at the longer focal lengths.
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This project was made with:
DaVinci Resolve 17 Studio
BMD Cameras and Canon Cameras with Cine Primes
Sound mixed in Fairlight
VFX DaVinci Resolve Fusion
Foley Sound Effects Created on location
Music Copyright Supplied by Audiio Sound or Written, Produced and Owned by Cine Chimp
#cinechimp #canon #28-70F2 
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Hey dudes, this 28-70 F2 L USM is by far the best Canon RF lens that I used so far. After the overview of the lens there is a series of tech reviews. Make sure to watch to end of the video to see the one major flaw this lens has. hope you enjoy.
That stop-motion bit with the rings and matte box was incredible. Loved it.
Hey Adam, thats super bice of you to say dude - know that I appreciate your time, which is why I put a lot of work into these videos. Stoked you enjoyed it
I respectfully disagree with the plastic vs metal part. Engineered plastic used in the RF lenses are actually in fact superior vs metal! This is why in vehicles and other demanding applications composites and plastics are more preferred. Check out some of lens rental's teardown of the RF 70-200 (also plastic) and you can see how well engineered the internals are and the zoom mechanism has several very sturdy rails to prevent the issues you experienced in the EF lens.
Other than that its a great video and I love mine 28-70 too! I use it daily as a zoom webcam haha
HA HA, thats must be the world most expensive webcam. Thats awesome.
Totally ok to disagree. And yes I do think they are strong enough. My materials opinions are based more on cinema work and using Cooke, Ziess on the regular. Which are made with an ultra precsion, but they also cost in the 35k and up price range.
Recently we had the misfortune of snapping a RF lens in half....lets say that wasnt a great day...
@@EntrNmHre whoa! Which RF lens did you snap in half?
@@cjm8160 an expensive one. I have also had a EF lens snap in half before two. Crash cams - getting crashed. Its pretty common on bigger jobs. Some cameras are in the expendable budget. I think I even saw PM do a video where he snapped one in half as well. That was on an r3 if I recall correctly. They aint tough thats for sure. Not like cine lenses. But that price difference right. Thats why they get used. For example mad max fury road. My lord they crushed a lot of gear on that job.
@@EntrNmHre Oh yeah when it comes to cine lenses its a whole different ballgame as they are designed to take the abuse and weight is not an issue as they are NEVER handheld lol - hence much sturdier housing materials can be used. But for a regular or majority of the professional photographer, Canon's material of choice is good enough for its intended purposes. As for regular lenses breaking or getting trashed, it happens and if you ever have the privilege of talking to a war photographer, they don't expect their gear to survive.
@@brokenintel very interesting insights. Its great hearing from photographers about the things Im not really thinking of as a cinematographer.
Are you doing war photography?
Thats something I have always been interested in. Guys like James Nachtwey. I find his work very intriguing.
Best review of this lens!
thanks for the positive vibes !!
This was the very first RF lens I purchased. I actually got it prior to owning an RF mount camera. I had just pre-ordered the R5 and knew I wanted that lens. Canon had them on-sale refurbished. So, I ordered it and an extended warranty for around $1,800 USD... It has never been that cheap on their website since - nor has it even been available refurbished. It is by far my favorite lens. I am really hoping they follow it up with a zoom above it and below it featuring the f/2. One thing you didn't mention, but somehow this lens features 8 stops of stabilization when paired with the R5, R6, or R3 without being an optically stabilized lens - crazy!
Great video! Hope you're doing well! I also marvel at your stop motion work! Regards!
Getting the RF 28-70 F2 standard zoom for 1800 USD is a bargain. Wind back the clock and pre order one for me. It totally agree. It would be noce to see Canon drop a super fast 70-200 L IS USM F2. But mand that thing would be a monster of a lens. Imagine that.
@@EntrNmHre Yeah, my Delorean is out of commission to go back and get you a refurb too! LOL!
I don't think Canon will do a 70-200 f/2, like you said it would be a beast no one could carry. But, there are rumors they may do something like a 70 or 80 to 135 f/2. That would still be a beast but maybe possible.
@@dadstalktech Now that would be an interesting lens!
Great review! I'm happy to see you get into a lot of the more technical aspects of the lens. Too many other reviewers neglect these things and all give the same information that's widely available. I just picked up this lens myself, and so far have been really impressed. I tested its sharpness against my EF primes, and was really surprised to see it beat all but the 100mm macro. I too have noticed the AF failure in low light, which can definitely be annoying, and I also discovered that the focal ranges marked do not directly correspond to my primes. To get the same FOV as my 50mm 1.2, for example, this lens needed to be closer to 56mm. Likewise, to match my 35mm 1.4, this lens needed to be at 37mm. This obviously isn't a deal breaker, but it I found it odd and noticeable.
Regardless, this lens is great, and the image quality is superb. I love how great it functions wide open, with so little in the way of chromatic aberration, and tack sharp focus.
Great comment Greg and yes I totally agree with you. The difference in FOV are also odd considering its the same manufacture.
Thanks man, very useful info here! Thinking of buying this lens for event videography like weddings, do you think the focus breathing would be a big problem for that?
For wedding videos thie 28-70 would be perfect because of the speed and range of the lens. I dont think the focus breathing for weddings would be a video.
Intetesting
Glad you found the video on the RF 28-70 L USM lens informative
Great video. Do you think it would be good for indoor college volleyball games? Thanks, FD
This lens has a great range, but for volley ball - it wold depend on how far away and how tight you want the action to appear? The 70-200 RF might be a better option for you.
Interesting
Double the interesting for double the money.
Thanks! Just subbed. Do you ever pop this baby on the C70? If yes, given the crop, how do feel it performs on it?
Hey man, you sprung me online! It works great. Well it works amazing. RF lenses on the C70 open up more focus control options over the vast majority of EF glass. So for the additional AF alone, they are worth every penny. The focus breathing (for me) is still very noticeable. But Im shooting high end stuff with VFX where that stuff is mission critical and for that I cant use it. For most C70 owners, this is one of, if not the best lens you can get for it with AF. If you don't need AF, for the money I'd with a true par focal zoom. It all comes down to what you're shooting and how you're shooting it, right? What sort of content are you DP'ing?
I'm just an amateur, but I would like to be a more advanced amateur. I have only done photography so far, no video, but I would like to try it. Got my hands on a fistful of cash, so I want to replace my lost Canon D7 with the R5, and get this lense and two or three others. I like that you include a lot of more technical information and tests in your videos.
I lost my D7 and some lenses a few months ago in the Philippines. Shouldn't have taken it there. I started in photography back in the 80's with a Sears version of a Pentax camera, way back in the film and darkroom days. Anyway, you have a new subscriber.
Oh hey, sorry to hear about the oss of your camera - but you are going to love the R5 in comparison! If you have any questions, hit me up
Tamron 35-150 f/2-2.8 is the better and the better-value zoom lens.
Oh thanks for letting me know Frank, I'll have to check it out.
We have the Canon 15-35 RF lens and we love it! We've been thinking about getting something in this focal range though.
Hello my Canadian friends. We also own the Canon RF 15-35 F2.8 lens, which is incredible. But the 28-70 F2 is on another level. All be it with its quirks.
I'm on the verge of throwing down that cash to pair it with my C70, you're one of the very few if not only person i've found that goes over the video side of it so that's majorly appreciated, do you have anymore insight on how well it would be on the c70? some specific questions I'd have are the focal lengths on it's sensor, would it be more like a 35-80mm, is the f2 a glorious step up compared to a 2.8 and personally most importantly how smooth is it with the C70's stabilization turned on!
Hi Chris, you most certainly would not be wasting your money thats for sure. With the C70s, it can feel front heavy. With that said, the quality of the glass, integration with the with c70 makes it a dream to work with. Another lens worth looking into is the ruclips.net/video/jVRm5SPQKxA/видео.html 14-35mm. Its not as fast, but its an incredible lens when also paired with the c70. I would rally like to see canon release a full frame (affordable) RF mount cinema camera with internal NDS.....which most certainly where they are going to go. So no matter which lens you choose....it will be good for the future.
@@EntrNmHre you are a legend and a scholar that is incredibly reassuring, it does seem like the ultimate choice! I was very tempted with the 14-35 as well but I’ve been pairing the 0.71 speedbooster with the old EF 16-35mm for a while and felt like it might be a little too similar in comparison!
@@ChrisSchieritz You would notice a big difference in the FOV between a native full frame RF14 to 35 and the 16 to 35 EF. Even with the speedbooster the 16mm is nowhere near as wide and the native 14mm. Plus the 14mm has a really nice close focus and silent focusing. But its all money at the end of the day right?
@@EntrNmHre I’ll certainly have no money left after all this temptation, thank you so much you’ve been a lot of help!
@@ChrisSchieritz Anytime brother
Expensive but worth it to buy , Good invest for life :)
So true. @ F2 its bokeh city.
Great review! Does this lens breath the same for all focal length? Is is possible to rack focus at 40mm without thats hefty breathing for example? Where does it preform the best? And where does it preform the worst?
Hi Kasper, it performs worse @70mm. The focus breathing is so bad, the lens angle is more like a 60mm. It does lessen the wide you go, but if you go back and watch the slider shots you'll see at all lens angles - at some points its almost like a dolly zoom. Without zooming. And thanks for the positive vibes
@@EntrNmHre Thank you for your reply 😃 Is i possible for you to make static comparison of breathing troughout this lens focal length with AF from close up to far away?
28, 35/40, 50 , 60 and 70?
This lens is really tempting, but the breathing could be a dealbreaker for video documentary work. 😞
@@kasperfosser9004 I think the lack of optical stabilisation and the lens weight is a bigger deal breaker for docos. Then add the lens breathing.
@@EntrNmHre well. I don’t agree to the stabilisation part. If I shoot hand held I want a handheld look. And I often use a easyrig. And for follow shots you have to use a gimbal anyway. I am way more worried about the breathing.
@@kasperfosser9004 Sorry I thought you where talking about stills as that what you requested.
I'm seriously contemplating purchasing the Canon cn-e 50mm T1.3 for video over the Canon rf 28-70 f2.0. I wanted to ask your opinion about it. Secondly, what are the 3 best Canon rf lenses for video? What are your favorite lenses?
Hi James, I have both lenses, but really they are for completely different applications and price points. The 28-70 is good value for the money as its fast, has AF, it’s sharp and covers a lot of bases. Going with a Cine Prime and starting to build a set, is a financial commitment and you really need to make sure that you can get healthy ROI on them.
Three best lenses is a hard question to answer because we all approach shooting our subjects differently.
If budget isn't an option and we are talking purely about the glass, not other features or which camera they are being used with, I would lean into the RF 50 & 85 F1.2’s with the 28-70 f2. That would cover most projects. But I’m loving the cheap 16 and 35 STMs and the F4 14-35mm.
All the RF glass is really good. They produce clean images with minimal colour tinting for video.
If i didnt need AF I’d get a set of the new canon cine zooms. They are super nice lenses.
@@EntrNmHre I would love to see a review of that Cine lens. You are one of the few RUclipsrs that inspires me. I enjoy your work.
@@jamescook5931 I think you’re the first! Know I appreciate your time...
Have you heard or noticed any noises coming from the autofocus feature from this lens?
Noise on the Canon 28-70mm F2 zoom? No, unless you are referring to the AF clicking that is apparent on a lot of Canon lenses when shooting video? Honestly, it's there - but no where near as bad as in the EF line of lenses. Totally useable for video jobs, the slow iris is more of a concern
@@EntrNmHre thank you so much. For your quick response. I'm going to follow your page and I'm going to forward you to a couple friends of mine.
You do a great job!
@@anthonycruzapx oh thanks brother - you can always hit me up via the email in the page bio as well if you need help or advice with anything else
Does the r5c have the same lens results as the r5? Secondly, doesn't the r5 with it's IBIS take better photos than the r5c?
The R5C from my testing has way worse AF than the R5, they are not even comparable. R5 wins all day long except in face only mode, which only the R5C has and the R5 doesnt.
@@EntrNmHre Would you purchase the r5 over the r5c? Secondly, in your opinion, what is Canon's best photography camera?
@@jamescook5931 Thats a tough question James. I had the R5C, I really liked it. But the reason I returned it and opted to keep the Canon R5 instead is the R5 is a true hybrid and very fast to work with. The R5C's AF is just horrendous considering its basically the same camera with a fan, a different on and off switch, menu / video / codecs / OS system and more flexible screen. If these things are not going to add value to the way you work, I would say save the money.
But I would also say this, I also have a c70 which has a softer image compared to the R5C due to the resolution difference, but is still by far the better video camera.
If you are in the market for a video camera, I would wait until after / during NAB 2023 to make up your mind. I think you could bet your house that with the recent price reductions on the c300mkiii, c500mkii and c200, that a new c200mkii and another full frame variation of the C-line will be announced in a matter of days.
Hey what uv filter can i put on this? I want to protect the lens but i cant find a fit.. can you recommend me anything?
Anything from Hoya or Tiffen would be a good start. But if they are too pricey try K&H
@@EntrNmHre Thank you! I also realized the lens cap says 95mm I thought it needed to match the 28-70mm number
@@sinned5504 Oh no thats the focal range of the zoom. If your buying or have bought this a beginner, thats one hell of a lens
@@EntrNmHre Appreciate the advice! I had a friend who scammed a lot of things and they just so happened to have a Canon EOS RP with this lens, and a Nikon z7 bundle, and i just happened to pick the canon. It was a gift since I was interested in getting into the hobby :o ... I was just fortunate to get it free but I dont condone the whole scamming thing
@@EntrNmHre By the way I saw on the canon website it says Filter Size- 95mm, sooo thats what i need pretty much right? I do appreciate your advice and realized its not always the case the 70mm doesnt mean 70mm filter
I got the original Canon EF 28-70mm f2.8 l Usm for 200$ on the used market. I'm pairing it with viltrox speedbooster for that extra light F2.0. Using it with eos M50 for photography and eos M ML for raw videography. my results are amazing for the price I got it.
Wow, thats a great price and just goes to show that you should always shop around. Thats a steal, man and a great combo that you have setup. Happy filming
Please do your research regarding the lens construction. While it is plastic, Canon uses high quality plastics and modern engineering plastics are even more durable than aluminum and more commonly used metals like zinc alloys. This keeps the weight down and retains a very robust construction. You can read some teardowns of the RF glass if you'd like, it is all made to last a lifetime. The argument of metal vs plastic is no longer valid.
Hi Max, you are completely entitled to your opinion. But to tell me I haven't done my research is ridiculous. I have had an RF lens snap in half. I have never had much larger heavier metal lenses do that.
Ukraine support I like what you did there
If you are there, please be safe!
Well, I’m just a hobbyist, and this must be a professional lens. Now, I know what AF is, and I know what MF is. RF I’m not familiar with. I’m guessing it must mean rectal focus, because I’d have to have money coming out of my a$$ to be able to buy such an amazing piece of glass😂
RF is the lens mount type
Fat lens. From my experience with the EF 70-200 f/2.8 L IS II USM, for me it is not worth it because of the weight. I just don't yield lenses as heavy as these... My RF 50 f/1.2 is already close to aching my neck when I am on a walk for 2-3 hours.
absolutely valid points and the RF 28-70L is a large heavy lug of a lens
@@EntrNmHre do 40 pushups before bed everyday, and carrying the mighty 28-70 f2 wont be issue lol
@@ronancullen4565 oh you got that right. Its a chunky boy
Interesting
Its amazing