Canon 10-20 f4L RF REVIEW: WATCH BEFORE YOU BUY! (vs Canon 11-24)

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This is a review of the Canon 10-20mm f4L IS Ultra-Wide-angle lens. I compare it side by side with Canon's 11-24mm f4 for the EF mount as well. Who is this lens for? Is it worth it? Give it a watch and you decide. I take it into the real world, in multiple situations to bring you the real deal sample images.
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[@therealphoenixrl]

Thanks Jared as always! Through out the years you have guided me on photography, I just wanna express my thank you, god bless and keep making wonderful content!

[@bmcla34]

I use the control ring to change the AF area. It's pretty nice for what i do with landscapes, which can turn into wildlife pretty quickly, so i like being able to change the AF area quickly with the control ring. If you accidentally change it the affect is pretty minimal, well at least for me.

[@kylegoodman5196]

Glad to know I'm not the only person who does this!

[@bmcla34]

@@kylegoodman5196 Agreed! It made a lot sense to me when i originally set it, and it's come in handy quite a few times since i switched to the RF lineup.

[@sebastianreiprich3747]

Same here 🤚

[@davidphillips9190]

I do that as well. Perfect for wildlife and grandkids' birthday parties, but I repeat myself.

[@sethholston6128]

Whoa whoa whoa I’m definitely trying this

[@frandecatta]

As a wedding photographer, working with natural and different lights, is awesome to have the ISO in the control ring to change those values really fast. Thanks to it, I took some photos in the past that, being slowly in other dial, wouldn't be possible to take. Upper dial to change time value, upper-rear dial aperture value and Control ring to change iso, all the fingers in natural position. The low rear-dial is to chanfe Kelvins. For me, that's the best combination to work :)

[@ArthurKite]

Jared, you can set the control ring to change your ISO. And, to not change ir acidentally, you can set it to only change the ISO with the shutter button half pressed.

[@matthijs3134]

How do you do this? This sounds quite handy actually

[@bbasiaga]

​@matthijs3134 with the lens attached, the custom controls menu in the camera will let you set up its function.

[@dude463waze6]

As a real estate photographer I'm just going to point out that it's the real estate agents that hire us that keep saying they want it to look wider than it is. I'd use the 20mm end of this lens plenty but would probably use the middle of the zoom more than anything. Small bathrooms would get the wide end.

[@Adam.Robert]

On R8, I use the control ring for ISO. On C70, I use the control ring for iris. On R5, I use it for exposure compensation when I'm using one of the program modes.

[@onlysublime]

That stadium shot is spectacular ! I've got the lens pre-ordered at B&H! Can't wait !!!

[@RileyMonthule]

The control ring is great for vlogging in full manual. I can change my veritable ND or use the ring to change iso all on the front of the lens without having to blindly reach behind the camera.

[@closeshot7161]

With the EF lens, you can use the EF-RF adapter with drop in polarizer - for some, that may be a plus.

[@gerrya2133]

I thought for sure I would never move on from the EF lens precisely because of the ease of using filters on a lens with front element that juts out like that. But that size and weight reduction is substantial. In a cylinder shape instead of mushrooming at the front. It's so much easier to pack now. Canon knows what they're doing. I thought it was going to be an easy pass. But now I have to think about it.

[@matthijs3134]

Thanks for this review! I just moved from EF to RF and the only lens that's missing in my bag next to my 28-70 and 100-500 is a wide angle for those nice interior shots and this sold me on the 10-20!

[@dougsmit1]

I did not expect you to address the question but you touched on the subjects in a way. There is more than one third party lens that covers FF at 10mm or under (9 is wider than 10) but does it with manual focus only. Like you said, depth of field is considerable at this focal length. Also, you will have to do manual corrections for vignetting and whatever else you find necessary. In return the prices are a fraction of the Canon list. If price is no object, the compactness might be for some.

[@ChefInRealEstate_Photography]

Amazing review as always Jared! I do believe I'm gonna buy this one in few days... I was considering to order the 11-24mm because I found it out for sale for 1.300€ but I just found out it doesn't have IS and considering I have a Canon R8 which doesn't have IS either, no doubt I'm gonna opt for the 10-20mm for Real Estate Photography. Thanks a bunch and keep up the great videos!

[@SteveP_2426]

I use the control ring for ISO on all my RF lenses. I mostly shoot landscapes and it's handy to easily alter ISO in different lights.

[@JohnScarrott]

The lens I've been waiting for! 🥳🥳🥳 UK price is a joke though at £2,579.99 which is US$3138.64, that's $839.64 more than the US price, which is a staggering 36.5% more! And they wonder why people in the UK buy grey imports 🙄🙄 I'll be buying from the UK as I need the UK warranty on it, so I'll have to wait for a decent sale price before I get one. Great shots by the way! 🤩

[@DavidJames-sv9sm]

Having "grown up" with EF lenses without a control ring I'm just not used to one. So it's set to off. 😆 I did try, but kept forgetting about it🤔 The R5 has an extra dial that the 5D mk4 did not, so three dials is plenty. Also found the control ring inconsistent in location. Might be an age thing. 🤣

[@kdw75]

JARED! I would love to see a video of your workflow for making a youtube video.

[@richarddenise3886]

In one word: Excellent! It will be a permanent addition to any Trinity kit with the 28-70/2 in the middle!

[@Nathan.1882]

I use my control ring on all my RF glass for aperture. It helps it feel more hands-on and keep my shooting interesting. Despite what you think about "accidently" moving the dial, i have never accidently switched the aperture settings on it ever.

[@aspotterabroad4145]

I just found myself in a situation, photographing inside an aircraft, where my 24-105 wasn’t going to be wide enough. The only thing wide enough that I had was the 8-15mm fisheye. Sure, I got one or two shots that work with the fisheye, but I can submit an entire set of that now can I !! Looks like I now need this 10-20mm lens, thanks Fro !

[@travelexplorer]

I am using the Lowa 10mm 2.8 on my R5C and Is fantastic!, the ultra wide factor works wanders in tourism images

[@hindermath]

I am using the control ring for changing AF modes.

[@Sam1986E]

I use the control ring to change focus points (including eye detection) Pre-ordered this lens and excited to check it out

[@mathewspencer4323]

I use the control ring to switch between object detect auto focus and point auto focus / the different types of autofocus.

[@alfredogalindo2659]

I always watch your new videos and re-view the old ones, I use the control ring to change focus mode, as a wedding photographer with changing people and objects very quickly in front of my camera, with a little twist of the control ring, "voila" move from face detection to single point focus.

[@richardgagne7931]

For the control ring I use it for Exposure comp or to change the Kelvin temperature. I use Custom setting (C1, C2 C3) for the programming of the control ring

[@HikingBob]

I don't use the control ring because it's too easy to turn by accident and I don't want to accidently change some vital setting.

[@DaneRThomas]

I use the control ring to adjust exposure compensation to better deal with backlit situations or to avoid clipping highlights

[@jasonatkinson2542]

Thanks Jared, this is the lens I've been waiting for, great review esp under lights

[@photojasinski]

I'm so excited for this lens! I love my 11-24 with the ND filter adapter, but I travel more than I am home so this is a perfect replacement for that old EF lens and my RF 14-35!

[@dream3443]

Do you feel having the ND Filter Adapter & EF 11-24mm is worth trading out for the 10mm? I have the same setup and wonder if it's worth it vs stepping back a bit. The lens however is alluring. Would like your thoughts.

[@photojasinski]

Just received my 10-20 and will have the opportunity to test it out this week. So far the size and weight is crazy better compared to the 11-24. The lens is even lighter than the 14-35. Hopefully rear gelatin filters can be used similarly to the ND filter adapter on the EF. If it weren’t for travel I wouldn’t rush to replace my 11-24. @@dream3443

[@sajjanreshami]

Thank you for this amazing review. I really liked the lens and thinking about adding it to my kit in near future. As you asked us what we used customizable ring for, in my case I used it to quickly change my kelvin value when the white balance is set to K mode. In that way I can change shutter speed, Aperture, ISO, and white balance in the fly.

[@emotionblur7214]

Good and exhaustive review as usual. One question though: how can you tell that it's "10mm corrected", is that what Canon specifically claims? Otherwise, you should properly, precisely measure the field of view to verify that. Comparing with another lens wouldn't do, because also the other lens is corrected in its own way.

[@trevor9934]

It is 10mm corrected. What happens, and Jarod demonstrated this, is that the actual Field of View captured before correction is like using a 8 or 9mm FL lens. That extra area is used by the algorithms applied in camera to the EVF and LCD displays as you shoot, JPGs in camera, and via lens correction in PS and LR to render the now corrected image with a Field of View of 10-20mm.

[@peaceyoman123]

i use tha control ring for appiture as well as the back dile for my R6ii. not a lens i can justify anytime soon, but i love that it is out and love this for you. keep it up.

[@JohnMacLeanPhotography]

Back around 1980 when I got my first UWA lens, the Nikkor 20mm f/3.5 Ai, it was considered very wide and affordable compared to the Nikkor 15mm and 13mm behemoths. Now 20mm seems like a 28mm or even 35mm did then. I have had the EF 11-24mm since Feb 2017. I can't say I use it all that often, but it comes in handy for unique image compositions when the opportunities arise. I've got the 10-20 on pre-order to both rent and to buy, whichever is available first. I'll probably end up selling the 11-24.

[@Stego86]

Very good coverage of all the main aspects of this beast of a lens!

[@trnwired]

Great video. Helped me out a lot in deciding whether I wanted to add this lens to my bag. Been using a Sigma 14 mm f 2.8 with adapter on my Canon R Series cameras.

[@davidligon6088]

Great review. I like the way you showed vignetting, and your Lightroom correction settings. FYI: I have the Sony 20-70 F4 and I love it! It has a bit more vignetting than the Canon 10-20. At first, I thought it was my filter. I would opt for the 10-20 F4 rather than the 14-35 F4, myself, as long as the corners were sharp, but I cannot help but point out that you are shooting at 20mm at 12:57. I doubt I would miss the 20-24 much.

[@clerle]

Great review Jared: I'm very curious to know how it will perform on the R5 MKII, or maybe on the R1... 😉

[@AnthonyGugliotta]

I use the control ring to mind control the subjects that I shoot

[@oskarlundberg1151]

I use the controll ring for white balance, works great. Not really a necessity in any way but nice to have a easy way to change it while looking through the view finder

[@maksrej5082]

I would love to have this lens because i love shooting wide, really wide

[@bbasiaga]

On my way back grom Arches National Park. You can get up close to a lot of huge things there. My 16mm 2.8 was the most used lens, but i coud have used wider more than a few times. Maybe i should consider this.....

[@lovemycity420]

I use the control ring to change focus modes, usually going from face tracking to one point back and forth!

[@rtfinklea]

I use the control ring for ISO. Set to hold the shutter button down halfway to adjust. Incredibly convenient

[@drummerg3331]

Great review Jared! This would be a great lens to video my daughter’s volleyball games so that the entire court fits on the screen without having to pan back and forth. Also, I use the control ring to easily and quickly change my focus areas (for example, a switch from spot focus to wide area). I find this much quicker than going into the menu.

[@rhykko77]

Some great shots there Jared !

[@ElijahsAba]

Been using Sony’s 12-24 with my Nikon Z - works great.

[@b7_jose278]

I use the control ring on the R8 to change aperture. This is what I change the least. Now I can change the iso and shutter on proper dials.

[@SteelRiderCarl]

Vignetting correction on+distortion correction OFF=🔥🔥🔥🔥 But what do I like about this the most? Getting a used 11-24mm which is still amazing for less!

[@WhyitJellyDonut]

I use the control ring for exposure compensation and leave ISO on auto. I let the camera change the ISO up or down when Im changing subjects from sunny to shaded areas and use exposure compenation to correct for when auto iso is wrong with backlit subjects or high contrast areas, auto iso is also way faster than I ever could manually and it works great!

[@unclebuck5957]

Love the pictures you did with this lens 10 mm looks great

[@garethcooper3544]

Hi Jared, the uncorrected extra crazy wide corners is an unexpected feature of this lens. I really like the images at the end of your review...love the B&W selfie in the helicopter...could you post a 100% crop of the reflection in your sun glasses? that would be fun to see...and demonstrate the bonkers DOF that a 10mm lens offers. I do thing the limited long end is a wee dissapointment...we would all have loved to see this extend out to 24mm....but hey, it's the lens that Canon have given us and it's an amazing tool. it's not a particularly useful lens for serious landsacpe work due to the lack of filter support....however for photojournalism...this lens is amazing and possibly the last word in walkabouts UWA lenses. Especially how well it behaves in contre-jour and back lit situations. OMG, best sunstars ever...and no ghosting, ugly sreaks, flare or fringing.

[@segercliffhanger]

Control ring for exposure compensation. I set aperture and speed to manual and ISO to auto. Whenever I change my F or S (or both), auto ISO takes care of at least a decent exposure (in my kind of photography, quick reaction matters). If I need to, I can add light to or take away light from that decent exposure, using the control ring to simply dial in a few or a lot of extra + or - 1/3 of 1/2 stops. Sitting right on the lens, it feels like opening or closing a can of light, haptonomically correct.

[@CassioHungria85]

Why not set it to ISO then?

[@segercliffhanger]

@@CassioHungria85 Because then, the ring would be setting bare ISO values. I set my control ring to manually add to or subtract from auto-ISO values my camera finds and dials in for me.

[@p.c.1346]

Can I use your Presets also if I only use Cameraw Raw??? Or it only works with Lightroom? Thanks for the Great Stuff from a German Canon Fan Boy (since 2004)....

[@adamfalgout6601]

I use the Control ring constantly for white balance control for video and photos, since I short manual white balance.

[@danwhitton7966]

I wish the lens was faster somewhere between 1.4 - 2.0 for astrophotography. I wonder what the noise would be like in a milkyway shot at F4 with a higher ISO. Maybe Sigma will release an RF mount equivalent at 1.4.

[@Davitor1]

I use the outer ring to change AF methods from faces, spot AF, 1 point AF, expanded etc.

[@andriimartynov83]

I use the control ring as an exposure compensation control because my RP is lacking the third control ring. It’s a useful feature for the budget cameras.

[@lynsmith1096]

Good review and shots Jared.

[@clayeewing]

Switching from FD to EF to RF, control rings fall outside my need range. I've been waiting for over a month for this lens (RF 10-20) to be sent out, and only slowed enough before ordering to have the camera store give me a good price (as good as it gets, and better than I saw on eBay) on my EF 11-24. I've loved the 11-24 since it came out and haven't regretted the purchase price even once...except for not wanting to carry it into the back country or anywhere, for that matter, except for the specific places I've used it (mostly real estate interiors). Take away half the size and weight, and I foresee this being in my bag or on my camera all the time. I'll see if that little button on the side gets any more use than the control rings on my RF lenses.

[@IsaacTrippetPersonal]

I use the control ring for white balance because it is useful for the viewfinder, but not essential when shooting RAW

[@thor9722]

Control ring for switch focus type, especially when you try to focus people but eye focus just can’t land the eye you want, then you need a quick switch to point focus.

[@KepaWong]

I use the control ring for exposure compensation.

[@tomasadameccom]

Great job Jared !! What do you think is better for professional work when you compare pure image quality? Is it better to have the RF 14-35 together with the fixed Laowa 12mm Zero-D lens (ok, you probably don't use it) or can I better replace both with this RF 10-20mm? Is this new zoom at least as good as the RF 14-35mm (at 14mm) or is it even better (sharpness, contrast...) and on top of that it can display as well or better than the 10-12mm? I need the 12mm, but not at the price of worse drawings on 14mm. What is your opinion please? I don't mind the sw correction, but how does it look on the video? Are the videos with straight lines and no vignetting? And when software corrections clarify the corners with vignetting, doesn't the image degrade and increase noise in the corners?

[@MichaelArmao-x6f]

Jared the rf 10-20 how does this work indoors for real estate. When at 10 mm and the camera is straight and level do you get straight lines on both sides of the frame?

[@julh5336]

The controll ring is awesome for iso setting

[@iang7007]

Thanks Jared :) Do you have lens aberration correction turned on in camera for these shots? we have a new R1 and RF10-20 trying to figure this out. thanks :)

[@tieuhotieulong]

control ring is so fantastic, i use for iso

[@adjake1]

I actually occasionally use the ring when shooting in kelvin. certain light conditions shooting landscapes I can't always visualize the shot in the viewfinder because the color is way off. not often

[@StephenSkoutas]

I saw you shoot at 20mm out in the field. 😊

[@360PictureUK]

I have to get this lens! When using my 14-35 f4 i like to use the control ring for the exposure compensation, i'm a real estate photographer so find this useful.

[@thecalebpringle]

I've always had the control ring set to Kelvin for video. Don't really use it in photo that much.

[@sophietarafiona]

Hello Jared, One beg for your opinion if I may: for those who aren't shooting for a living as pros like you, but do try to take the occasional, hopefully somewhat creative shots here and there, would you say that keeping a 2nd hand EF 11-24 with slot in filter EF-to-RF adapter on an R6 MkII quality wise for the 11-24 (compared to the new glass) is no reason to feel bad for not getting the new RF 10-20 considering weight is just something you occasionally have to live with and money ofcourse is always an issue for amateurs ? I have the R6 Mk.II based on your review of it and the used EF 11-24mm f4 , the RF 24-105 L f4 as part of the kit and the 2nd hand EF 100-400mm IS Mk.II USM and it took me a while to put that together financially. I hope I can say I got all my bases more or less covered as an amateur ?!? I do sin against your common reasoning here as I do like using that polarising filter in the adapter with the 11-24... yes, I know, I'm weird. Thanks for your continuous efforts to teach us all out here. I do hope I did not ask anything too stupid or uninformed just now. ;-)

[@mattorrz759]

Love the shots mate. I have been solely using the 70-200 f2.8 and the 100-400 f4 on my 6DMKII for motorsport. I have been tossing up whether to move to mirrorless or not. Seeing these great ultra wide shots really have keen to make a change. I know I could probably just the EF but this lens looks way more sexy and a good excuse to make the change 😃 I noticed you were shooting at iso 2500 and 1/1000. The images didn’t look noisy at all 👌

[@ryanstiffler5632]

I had a 6D2 before. If you're ready to make your wallet cry a bit, go and rent an R series and a long lens, the vehicle tracking is wicked. I shot Petit Le Mans a couple weeks ago and I was able to keep focus through the esses choosing where I liked the car in frame best.

[@mattorrz759]

@@ryanstiffler5632 Thanks mate, that is a great idea 🤙

[@MonsieurSansHonte]

I use the control ring to adjust the ISO setting.

[@Bad_Wolf_Media]

Looks like a great new addition to the kit. If you need somewhere to store that 11-24 that you presumably won't be using now, Jared, just let me know!

[@BruceLeroyUK]

😂😂

[@mrhallphotography]

I use the control ring for exposure compensation when shooting landscapes and MACRO..

[@CassioHungria85]

Why not ISO?

[@funkykiller666]

Hi Jared, personnaly, il use the control ring for aperture. You have two dials on your body and one on your lens for the three basics setup of photography. Thanks for all your content, fresh news and consistant tests. Did you already try Olympus OM1 ? Il know you don't like MFT, but the focus staking and HDR is amazigly fast versus the others brands.

[@luvo_studio]

I love that image taken in the corner of the stands. I wish Nikon would have an option for us!

[@meteoritoIII]

Hi Jared! I use the control ring on my RF lens to set White Balance ;) cheers from Chile!

[@Mathieu_Matheow_Benoit]

I just got a R8(mostly based on your review btw) for wildlife and all my lenses are EF for now. The use i can think of for the control ring is to (rarely) adjust my aperture.

[@julius4858]

I use the control ring for exposure compensation

[@richardgagne7931]

For the control ring I use it to for Exposure Comp

[@Aureas133]

Cant wait to get my hands on a second hand version in 15 years when the price enters the realm of average joe

[@garrettsmith182]

I use the control ring to change the AF area, really is fantastic to swap from single point to area to facial recognition. Makes things so much faster. My biggest gripe with Canon is that certain camera models are limited on what you can set the control ring to do when its as simple as enabling it in the firmware. Only the R6-R3 can do this i believe

[@kokoze]

Oh yeah Canon is notorious for gatekeeping premium firmware :/

[@zekromjr9979]

I use the control ring for the white balance

[@gerry9306]

Hey dude, Fro forever bruh!

[@L0wr0ad]

awesome lens design

[@bikermann42]

Control ring for ISO. Wish I'd had this lens for the aurora borealis display last week.

[@owlmostdead9492]

12:17 "you're not going to use a lens like this at 20mm" 🤣

[@G95G95]

I want this lens, I do actually wish it went to 24 though, and here's why, 24 is long enough for general purpose shooting, 20 is firmly ultrawide. It would have been amazing to not have to be limited to ultrawide only shots when using this lens, if it had 24, you could take this single lens to many settings and instantly jump from crazy ultrawide, to 24 which is super versatile, 10-20 can't really stand alone, it's firmly an exotic, special use lens. I also hate the control ring, and just disable it, and put a strip off black tape over it for better grip/handling.

[@MrWoodward42]

@G95G95 You may want to consider the Sigma 14-24mm f/2.8 Art lens (EF mount) -- It's 1/2 the price of the Canon lens reviewed here, just as sharp, and 1 full stop faster! No OIS -- But do you really need IS on such a wide-angle lens now that most Canon bodies have IBIS? Sure, it doesn't go to 10mm, but 14mm is pretty darn wide. And it reaches that special 24mm that you're seeking.

[@G95G95]

@@MrWoodward42 I already have the RF15-35/2.8. My point is that having record setting 10mm is awesome, and it would be even more awesome if in order to use it, you didn't have to lose a more normal versatile fov. But yeah, 14-24 it's a good range too

[@trevor9934]

@G95G95 @@MrWoodward42 Well, for a considerable saving, one could get the RF 14-35L f/4 IS USM that offers a much wider focal range, takes a normal 77mm filter has image stabilization that works with IBIS and has similar image correction to the 10-20. I have one and it's absolutely stunning. I tend to need that extra stop of light less, certainly for DoF because with such short FL, the DoF is massive, and the stabilization more than makes up for the stop of light compared to the Sigma, which would require an EF-RF adapter and is not supported by Canon, so if you have issues, it's up to Sigma to sort them out.

[@wizsnapsalot2]

I use the control ring to change ISO but forget to use it often 😂 it's definitely messed me up when shooting the milky way at night because I was using manual focus and grabbed the control ring instead.

[@matthewsinger]

I use the control ring for ISO. I'm sure you've already thought of that, and, like me, sometimes I hit the control ring when I mean to adjust the focus, so I'm ambivalent about it. But I do find it useful on my camera which doesn't have a 3rd dial on the body.

[@Soul_Visuals_Photography]

I use the control ring for white balance

[@clinttrahan]

I use the control ring for manual white balance. being color blind, i find auto WB too hard in post; so its set to adjust WB.

[@genxtechguy]

Love this lens. Go Diamondbacks!! 😉

[@ElliotFranco]

Thank you again Jared for your reviews

[@marcosantos5284]

Hi! It's possible use a polariser filter in the RF10-20mm ?

[@HikingBob]

I'm a landscape photographer in the western US and sometimes (mountain lakes, canyons, etc) having an ultra-wide is the ideal lens. I'm currently using the 14-35L and the 24-105L, and am now wondering if I should trade in the 14-35 for the 10-20? Will I have a problem with the 4mm gap between the 10-20 and the 24-105? And what about the 11-24EF? I can get a good used one for under $1500... Choices, choices...

[@neilstevensphotography]

Control Ring for me is to access the ISO on my Canon RP... With dials to change the Shutter and Aperture on the Camera, it saves me having to adjust the major settings on the back of the camera. Are you able to use screw on Filters with this?

[@josephchan4198]

Thanks for the review.