SIGMA ART 18-35 vs CANON RF 15-35 - CANON C70

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Full comparison between the Sigma Art 18-35mm F1.8 and Canon RF 15-35mm F2.8L. Which is the best fast wide zoom lens for the Canon EOS C70? Image quality, autofocus, autofocus noise, focus breathing, distortion, parfocal, and many other factors to determine which lens is better.
Canon C70 - geni.us/kV6qgk
Sigma Art 18-35mm F1.8 - geni.us/0JZdi
Canon EF-RF Adapter - geni.us/tH8GTn
Canon RF 15-35 F2.8 - geni.us/IO46It
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CAMERA GEAR:
Canon R5C - geni.us/X4zu
Canon C70 - geni.us/kV6qgk
Canon RF 15-35 F2.8 - geni.us/IO46It
Canon RF 24-70 F2.8 - geni.us/TtRw
Canon C200 - geni.us/YFYDE5S
Canon EF 16-35 F2.8 III - geni.us/AxzhXK
AUDIO GEAR:
Sennheiser MKH50 - geni.us/ukZjif
Rode Videomic Pro Plus - geni.us/zrg4N0
Sennheiser AVX MKE2 Wireless Mic - geni.us/KtpofQK
Rode NTG5 - geni.us/Yi7A5S
OTHER GEAR:
NiSi Tru Color Variable ND Filter - geni.us/hvFBj
Prograde V90 256GB SD Cards - geni.us/2n7XYa
Aputure 120D II - geni.us/mAskT6T
Aputure Light Dome II - geni.us/CjHV
Aputure Light Dome Mini II - geni.us/70sFQBq
DJI Mavic Air 2S - geni.us/4BsywSF
Sachtler Flowtech 75 Tripod - geni.us/Ey3Bh
Sirui ST-124 Tripod - geni.us/Ftt8oc
Gray Card - geni.us/7M2nA
Color Checker - geni.us/NQP8Aj
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TABLE OF CONTENTS:
0:00 - Intro
3:49 - Image Quality
7:21 - Autofocus
9:07 - Autofocus Noise
10:29 - Stabilization
12:04 - Parfocal
12:56 - Focus Breathing
13:37 - Which lens should you buy?
This description includes Amazon affiliate links, which earn a commission to help support my channel at no additional cost to you. I only share products and services that I actually use and believe in.
#sigmaart #canonc70 #canonrf

Опубликовано:

13 июл 2024

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Комментарии : 69

@RockyColaFizz 2 года назад

Love your comparisons. Great job Josh

@Josh_Sattin 2 года назад

Thank you so much!

@mb-watches 2 года назад

Both great lenses and the sigma is a good value for money. Only thing I found with my sigma is that it’s do struggle sometimes with autofocus what I did not see with the RF. Still, right now i stick with the sigma and might get addition the rf rokinon 14mm for a wider field of view

@MrExel47 11 месяцев назад

Really hard choice. Thanks for the comparison!

@FulaanCreative 2 года назад

Both lovely lenses. i own the sigma and love it, especially considering the price. The 15-35 is a bit pricey for me so i opted for the Tamron 15-30. It produces an awesome image and has stailization as well.

@tjordano9573 Год назад

Watched your video and bought that awesome lens

@lucaloschi8958 2 года назад

I still find amazing how well the Sigma lens holds against the (extremely over priced) RF lens in terms of image quality and sharpness. Also although noisier I didn't find its AF unusable at all, moreover that in a real scenario a shotgun mic wouldn't be closely pointing at the lens motors in a silent environment. Last thought, I would say that the choice is not even about the budget and I would give to the cheaper, older 3rd party lens an advantage in manual focusing and versatility in real world run and gun scenarios, since the Canon lens tops at 2.8 (thus gathering less than half of the light) having also a noticeable less shallow dof compared to the 18-35.

@lucaloschi8958 2 года назад

Another thing I've noticed is that on the clip at minute 8:36 the shadows in the Canon lens looks rather lifted having also warmer and more contrasty (and brighter, despite the waveform) look compared to the 18-35, giving the feeling of a different (internal?) image processing that however I didn't notice as much in the previous samples of the trees.

@demiloca Год назад

Wow, great catch re barrel distortion. I own the Sigma and have never noticed it. Great vid overall, thank you. I searched for exactly this! RU-vid has everything!

@joaquinperalba1624 Год назад

Hi Josh, thanks for this awesome review. Well done (as usual). Quick question: I read that you cannot configure different autofocus speeds on the sigma …. Is that true? Maybe was an specific sigma lens or not well firmware updated …. I would love to have your view on this. Thanks for amazing job. I’m a subscriber. Take care.

@chriset21 8 месяцев назад

Rf15-35 is my main to too lens for my c70 for most cases, I do have a boosted tamron 35 1.4 for low light situations and it is lovely.

@RuskinKyle 2 года назад

Top video. I've been holding off replacing my 'boosted EF 24-70 but the RF 15-35 does look like a no brainier

@jeanmarcsabatier7917 Год назад

Merci pour votre retour sur les 2 objectifs, je possède un 18 35 sigma que j'utilise sur ma canon C100 ll

@zsharpproductions 2 года назад

This video just comes perfect in time!! I just got the c70 coming from The GH5 and owning the sigma 18-35… I wasn’t sure if the sigma is any good for the c70 regarding especially autofocus. I appreciate you man!! Keep on doing these videos :)

@Josh_Sattin 2 года назад

You’re welcome! Glad the video was helpful for you. Enjoy the C70. Thanks for watching!

@spaceghostcqc2137 Год назад

How do you like the upgrade?

@chriscampbell2450 29 дней назад

Thanks for this great comparison, I started off with the Sigma and just moved to the Canon. Certainly not an easy decision as both are very nice. The main thing for me was like you said the handling of the 15-35mm on the C70, when using for any extended period of time is much more comfortable to hold. I got the C70 pretty late in it's life cycle and at the time didn't have the budget for RF L lenses so the Sigma was the only choice at that time. It's why I love the C70 and it's versatility, there are so many ways to get great images out of it.

@fsb5370 2 года назад

This was good, especially on the barrel distortion. I did notice a weird shift when you did the image comparison. I didn't realize it was barrel distortion. Something to correct in post, like in Davinci?

@PizzlesTechTime Месяц назад

Thank you for the video Josh I was considering spending more money and getting the Canon lens but didn't make sense to get 4 mm wider. I ended up spending about 500 bucks and getting the 16 to 35 2.8 Mark II

@loweredresolution 2 года назад

That RF lens is a beast! Thanks for the comparison!

@Josh_Sattin 2 года назад

You’re welcome. Agreed, the RF lens is awesome. Thanks for watching!

@jon112media 2 года назад

I don’t have a c70, but I was thinking of grabbing the sigma lens for an R7 once those come out. Thanks for bringing this oldie but goodie back up!

@Josh_Sattin 2 года назад

It's definitely a good option for the new R7 and R10 for sure!

@juliopereira8153 2 года назад

I would like to see how that Sigma 18-35 pairs with your Canon R7, not sure if you’re already thinking of trying out a few lenses with the R7 and making a video about all that. Keep up the amazing work I’ve enjoyed all your content 👍🏼😁

@Josh_Sattin 2 года назад

Thank you so much! Yes, that lens is on my list.

@gb4639 2 года назад

Excellent comparison, thanks. It would be interesting to see the comparison with the .71 adapter and the 18-35.

@Josh_Sattin 2 года назад

Thanks. You wouldn’t want to use the 18-35 with the focal reducer because it an APSC lens. You need to use a Full Frame EF lens with the focal reducer.

@biobazar 2 года назад

Merci beaucoup pour tes vidéos, je possède déjà une sigma sur ma c70, et je me demande toujours quoi faire, si je dois changer ou quoi, tu pense quoi du 24-105mm f4 ?

@alfredknodler540 Год назад

Hello Josh, your videos are so helpful for me!!! Thanks for that. I own the C70 and I wonder if the 14-35 would be an option too. But ok: considering the buy-once-cry-once philosophy maybe I should go for the 15-35. What's your advice?

@Josh_Sattin Год назад

Glad the videos have been helpful for you. I would recommend the buy once cry once philosophy for sure. The RF 15-35 is such an amazing lens and having 2.8 is nice, especially with the S35 sensor.

@rocksoundvision 14 дней назад

Now that the crop sensor Sigma 18-50 f2.8 is out for the RF mount, it seems like the ideal lens between these two if it's on the C70 - native RF mount, same f2.8 as the Canon, cheaper at $599, much longer at the long end (basically a 24-70), smaller than either of these setups. is there anything wrong with that setup? I've read that maybe the Sigma RF lenses won't cover the S35 sensor, but can't seem to confirm this anywhere, but it seems like the older Sigma EF Crop lenses worked ok. Thoughts?

@jiajianhou426 2 года назад

Focal lengths (correction) relative to R5 : *Sigma DCI/UHD: 24.7-48.1* *Canon DCI/UHD: 20.6-48.1* DCI sensor width C70: 26.2mm, R5: 36mm; crop factor: 1.374x Both C70 and R5 crops in from DCI to get UHD, so technically when comparing R5 and C70, *C70’s UHD crop factor is also 1.374x* because R5 also crops in a bit. But if you are comparing C70 UHD to A7s3 (35.7mm width): new crop factor 1.4534x *Sigma UHD: 26.2-50.9* *Canon UHD: 21.8-50.9* This is only when compared to A7s3/FX3/FX6.

@Josh_Sattin 2 года назад

Huh. I’ve seen 1.46 and 1.53. Do you have a link to those specs?

@jiajianhou426 2 года назад

@@Josh_Sattin I just edited my values. Canon publishes the crops as 1.43 and 1.53 but those are technically wrong, but also right. They are the diagonals. My numbers are from C70 spec sheet, R5 spec sheet and Sony camera spec sheets. I calculated these crops using only *width* not diagonal since FF 36x24 and DCI/UHD have different aspect ratios which should be taken into account. Gerald Undone did a video on this a long time ago. He also suggested using widths, not diagonal.

@jiajianhou426 2 года назад

@@Josh_Sattin I just DMed you on Instagram for a more detailed explanation.

@ProbstfeldCreative Год назад

Do you have any focusing issues with the 18-35? Mine when it’s wide, won’t focus.

@VastCNC 2 года назад

Really wish sigma would update the art zooms for native APSC mounts.

@Josh_Sattin 2 года назад

That would be amazing for sure.

@karloveliki5373 Год назад

Just got the Sigma, daaaamn, for APSC there's no better lens than this one. It's a must, especially considering you *almost* get the 24-70mm from it

@kimbokinny Год назад

Does Sigma 18-35 mm goes well with Eos R7?? is it a good pair? What's your thought?. I'm thinking of getting Sigma 18-35mm for my R7 but I'm confused, please help 🙏

@Josh_Sattin Год назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-L4o3nXrz3_Y.html

@hugomouteira7015 14 дней назад

I saw a review where you couls use the sigma in R5 to shoot 4k oversampled from 5.1k in canons crop mode and the images were great. So if you have a R5, the sigma still works on its 18MP cropped sensor.

@Jason_Hermann 2 года назад

Nice comparison Josh! A classic example of you get what you pay for, although is it worth 3x the price??? ;)

@Josh_Sattin 2 года назад

Thanks Jay! Super tough to justify 3X the price. I find there is always a premium you have to pay to get that last 10% of performance.

@berkertaskiran 2 года назад

Not really, you do not get what you pay for. RF lenses tend to focus breathe extremely. I would not want that on a 3x priced lens. And I would like to see a real sharpness comparison. Because Sigma is sharper than some top cinema glass. Canon do also have some sharp lenses, of course. Also you can adapt Sigma to a lot of mounts because of the longer flange distance. Do you see yourself using the RF in 20 years? I do see myself using the Sigma in 20 years.

@ST-fl5fy 3 месяца назад

Were you using RF adapter?

@davidvansteenwyk2653 4 месяца назад

What adapter do you use for the Sigma. I just go the camera with a new Sigma 50-100mm f/1.8 DC HSM Art Lens for Canon EF and the included Canon Mount Adapter EF-EOS R 0.71x and it has major vignetting.

@Josh_Sattin 4 месяца назад

You shouldn't use the 0.71X adapter with the Sigma 18-35 or 50-100 since those lenses are designed for S35, not full frame. They don't have image circles that are large enough. I use this adapter: geni.us/tH8GTn

@Greglina 16 дней назад

So I have the C70 and the speed booster and I am considering getting the RF version but the sigma version is very cheap.

@Dom_2444 Год назад

I just bought the R7 body only, I also got a canon RF 100mm macro lens for product photography. But what's a good lens to get for everyday use for family pics, city pics and travel? I had gotten the canon RF 35mm macro lens for everyday use but I'm not the biggest fan of this lens.

@Josh_Sattin Год назад

It really depends on the focal lengths that you like. If you don't like 35mm, do you want wider or more zoomed in. I just posted a full lens recommendation video for the R7 that you should probably check out: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-jDsAsNiqQ-A.html

@Dom_2444 Год назад

@@Josh_Sattin I’ll check out the video, thank you!

@prahinc4832 29 дней назад

I am confused as you mentioned canon Rf lense when on the Canon c70 gives a minimum focal length of 23 in uhd at the wide end but when shooting to test autofocus and barrel distortion you have footage shot at 18mm. How did you achieve this?

@Josh_Sattin 23 дня назад

I was referring to the full frame equivalence. The camera will show the actual focal length of the lens on the screen.

@CatrielLopezAcosta 2 года назад

The sigma in the R5C can give us an completely incredible range: 18 to 56 mm at 1.4 - 1.8 (Switching in between using and not using the speed booster, in S35) That, with the 8K sensor give us fully 4K. And is just one filter, just one lens, and it cost 500$.

@numfade7045 Год назад

Hey Josh I’m having autofocus trouble with my c70, sigma 18-35, and the viltrox ef r2 adapter. Your my only hope. Any help?

@Josh_Sattin Год назад

I’d probably get the Canon EF-RF adapter. It’s only $100 and works really well.

@DustinBairdsolo Год назад

Long story, I almost bought an old canon 16-35 2.8 for really cheap. I had a few days to play around with it and fell I love with the focal range. In the end, all of the dated features on it kept me from buying it. Then I went down the rabbit hole of trying to decide between the sigma and the RF 15-35. I’ve watched this video like 5 times and it made me pull the trigger on the RF 15-35. I just kept feeling like I was going to be disappointed with all of the compromise I’d be making by going with the sigma. It’s a great lens, but you’ve really sold me on the 15-35. Buy once cry once right? 😆 I have a feeling this lens is going to live on my c70.

@Josh_Sattin Год назад

Yeah, I am a believer in buy once cry once. The RF 15-35 is a fantastic lens and one of my favorites. It's great on the C70 too.

@RexxReviews 9 месяцев назад

That Sigma lens works great for a poor RU-vidr like me 🤣 Ive been using it on my R5 and R50

@Josh_Sattin 9 месяцев назад

I still use the Sigma 18-35 a lot, and on higher end cameras. It's a great lens.

@RayValdezPhotography 2 года назад

I stopped using my sigma. The Rf is just overall better but i wish it was 1.8. Then with the speed boosted 24-70 i dont have much reason to use the sigma.. you should compare those two next.

@Josh_Sattin 2 года назад

I agree if you can afford it I prefer the RF to the Sigma. I don’t plan on using a speedbooster anymore on the C70.

@AIdrisPalmer Год назад

You forgot to mention that unlike the Sigma, the Canon lens is weathersealed. This in all likelihood is the principal reason for the price difference between the two lenses.