Sigma 100-400mm F5-6.3 DN OS: Definitive Review | 4K

[@DustinAbbottTWI]

As for Sony TCs: they physically mount, but there is no autofocus and aperture doesn't report correctly. You can manual focus only. A firmware update might change this, but it might not, too. I suspect we'll have to wait for Sigma TCs to arrive, and I don't know for sure if Sony will allow that.

[@stjepantomislav363]

Thanks for that feedback regarding Sony TCs. Since I'm mainly interested in stopped down landscapes with this lens, manual focus isn't a problem (a preference, actually). Did you by any chance check for the image quality across the frame with TC attached?

[@DustinAbbottTWI]

I didn't - I had a friend at Sony test the combination for me to see if it would work.

[@gregturner_awod]

Thanks for that update.

[@Be-Es---___]

Sony tc does NOT fit the lens.

[@stephenwilletts7892]

There is another advantage for the Sigma which I don't think anyone else has mentioned so far: it is black, so it looks like all my other lenses and my wife would not notice. She would notice the white Sony and she knows how much it costs!

[@DustinAbbottTWI]

LOL...there's some truth to that.

[@DavidZamut]

ahahahah laughed hard on this one

[@kenjowen]

Superb!

[@kenjowen]

:)

[@Zarar5]

Lmao this is so true

[@derkoekje]

Probably the best review on KZbin, published a half hour after the announcement. That's making good use of your early access, Dustin!

[@DustinAbbottTWI]

This was what my Sigma Canada contact hoped for when they advocated for me to get early access.

[@rizatamin]

I love it when you’re reviewing a sport lens,because i knew there’s gonna be a dog sequences! :D great job as always Sir!

[@DustinAbbottTWI]

I enjoy doing those, too. I'm fortunate to have a friend who is a dog breeder.

[@ScalletaVito]

Hi Dustin, Happy New Year 2024! I was just going through your reviews. In the review of the DSLR version of Sigma 100-400, you compared it with Canon EF 100-400 II and had a conclusion that Sigma had a better image quality overall. And now for the mirrorless version of Sigma 100-400, the comparison shows between Sigma 100-400 DGDN and Canon EF 100-400 II that Canon is the better one. So my question is, in terms of image quality, it looks like Old Sigma ＞Canon ＞ New Sigma, is that right? Looking forward to your reply, thank you very much!

[@kbruff2010]

Review comments: 1. Details great 2. Examples great 3. Comparison excellent 4. Objective analysis great 5. Delivery excellent Aa typical excellent work

[@DustinAbbottTWI]

LOL - that's a lot of nice points :)

[@maxsr3236]

At least Sigma knows where to send their new lenses first.

[@DustinAbbottTWI]

I'm hoping this will be a trend. The main guy at Sigma Canada really advocated for this opportunity for me and put me more solidly on Sigma Corps radar.

[@miroslav_jovic]

@@DustinAbbottTWI Keep up with good work Dustin I enjoy your reviews but I am holding back on any new purchases till Sony releases some new cameras. I'd prefer to see a7IV over A7Siii but we ll see what they release if they do at all. Canon is coming strong at Sony so I ll be waiting to see how they do maybe even switch to Canon.

[@327journal]

It’s amusing how we’re so caught up in the details…sharp focus, noise, lens size and weight, etc. But the dogs are so excited running around and playing in the water. What a life.

[@DustinAbbottTWI]

They probably have it right.

[@tbreit]

With Sigma/Tamrons' increasing support of the Sony camera system it has to be tough for anyone but pro's to look at Canon/Nikon. Tamron is clearly the low price driver but Sigma has done an outstanding job targeting the infamous "90/50" goal of 90% the performance for 50% the price. The consumer is winning big now but it also pressures Sony to advance the A7iv to round out an unbeatable system.

[@DustinAbbottTWI]

It's an interesting contradiction. Third party lenses put pressure on first party lens sales, but also drive system sales.

[@tbreit]

@@DustinAbbottTWI Smart brands keep good relationships with 3rd party companies. "Friendly competition" feeds on itself, especially with consumer electronics. But, Sony must really get moving on Gen2 versions of GM lenses. :)

[@raGEEE1986]

It has made me sell up my canon stuff just deciding on a7r3 or a9

[@tbreit]

@@raGEEE1986 It would be nice for the A7iv to pull over the guts of the A7Riii and add the flip screen and video goodies. It would reset the industry.

[@raGEEE1986]

@@tbreit Decided on a9 as i shoot a lot of motorsport and wait for this lens too

[@mdc123-v2v]

This is also a fantastic landscape lens and for that price it's a must-by unless you want the GM for vanity and slightly faster AF and/or you're shooting fulltime in rough conditions. In the UK the GM retails for almost three times as much as the Sigma without discount. Mads also recommended the Sigma over the GM and he would know.

[@DustinAbbottTWI]

3x...wow! That's a huge difference.

[@BalkanBiker]

What an amazing review! You nailed EVERYTHING, even the outro!

[@DustinAbbottTWI]

Thank you very much!

[@CelsoMollo]

I am new to the channel and I just want to say that you do a great job reviewing the products, I already subscribed and I don’t forget to like the videos I watch. Thank you.

[@DustinAbbottTWI]

Thanks for subbing!

[@AzWineNut]

Thank you for a great review! Your reviews are, IMHO, simply the best on KZbin. They are much appreciated, and cover all the points one would want. I own the Sigma 100-400 contemporary in Canon mount, and use it adapted (MC11) to my Sony bodies, with really good results. The addition of a "native" tripod collar is a plus, specifically to allow for lens and camera rotation when using a gimbal. Well Done!

[@DustinAbbottTWI]

Agreed. There's a lot of great improvements.

[@AzWineNut]

@@DustinAbbottTWI Yes. Now I'll sell my existing lens and order the new one!! Thank you once more!

[@HackingDutchman]

Again, a quality review! Nice to see it performs very well at 400mm compared to the GM. Now I can safely choose for the Sigma.

[@DustinAbbottTWI]

Enjoy!

[@gemwebb]

Same!

[@wawanbalik]

I have no real interest in this lens but ended up watching just because Dustin is covering it. Hoping more and more manufacturers will work with Dustin to get their products reviewed. The most detailed reviewer in YT and extremely helpful!

[@DustinAbbottTWI]

Great feedback.

[@Josh-ow4gc]

Yesss! So excited for this. In my country, the 100-400GM is almost USD $3600 (inc. tax). So this is going to be fantastic!

[@DustinAbbottTWI]

Wow - that will be a huge price difference for you, then.

[@miroslav_jovic]

Damn where do you live man? In Canada it's $3400 Canadian where US dollar is 35-40% stronger and I thought we had it bad. Thanks you made my day :)

[@DVZM.]

@@miroslav_jovic Probably in some country within the EU. In Austria it is 2950€ ($3500) right now.

[@tchlin]

Very Underrated channel. Great work.

[@DustinAbbottTWI]

Glad you think so!

[@leboned3076]

I just bought this lens to go with my 20mm 1.8 and 24-105 f4. It’s by far my favourite lens, being able to pull the hood to zoom is extremely useful for action/sports photography. The images are extremely sharp on my a7r4.

[@DustinAbbottTWI]

I'm glad you are enjoying it

[@OccultDemonCassette]

What is attached to the bottom of your camera? I like the look of it. Battery grips are sometimes too big, and that little extender looks like it adds jusssst the right amount of height to the camera to make it comfortable.

[@DustinAbbottTWI]

It's from Smallrig: kzbin.info/www/bejne/g17GqZt6ZdGHq6M

[@OccultDemonCassette]

@@DustinAbbottTWI thanks!!!!

[@shamwow7996]

Always like the intelligent way you give a thorough review!! Nice work and keep Shooting!!

[@DustinAbbottTWI]

Thank you very much.

[@SuperBuickregal]

Hats 🧢 🎩 off to you along with Christopher and Gordon on all the really amazing 😉 reviews you all do!

[@DustinAbbottTWI]

Thanks so much. That's great company.

[@OccultDemonCassette]

Does the Sigma OS from the lens work in concert with the IBIS in the camera body similar to the way that native sony lenses do?

[@DustinAbbottTWI]

I'm not entirely sure of that. Their language doesn't really indicate that it does in their press release.

[@IrixGuy]

Great video! Have you had a chance to test the Sony 1.4X or 2.0X TC with it yet and did it work?

[@DustinAbbottTWI]

I did have it tested, and, while you can manually focus, AF doesn't work.

[@thaddeevaldelievre895]

thanks for the review! I was really looking forward to this announcement. 1/3rd stop seems like less of a big deal these days with noise-reduction software and newer sensors. Hopefully the teleconverters won't degrade image and AF too much. Random question- what kind of tape is that on your smallrig L bracket? I would love something that makes it more comfortable!

[@DustinAbbottTWI]

The gun tape I'm using is this: amzn.to/3hKHN6v

[@hughhuang3117]

Thank you for the excellent review, Dustin. Your reviews are well structured, to the point, thorough, and informative! I really appreciate your time and effort for making great content and videos. BTW, what kind of camera setting you use when you shoot fast action such as the dog running? I've been using an A6400 with 18-135 kit lens, but I cannot achieve high hit rate mentioned in many reviews when shooting kids running or playing swings. Thank you!

[@DustinAbbottTWI]

I used an a9 for those, so obviously a very good focus system. I used High Speed+, Balanced, all points active, and with Pet Eye AF engaged

[@jerryE-vy8nd]

Excellent review. The most detailed review of the Sigma 100-400 Sony e-mount. I am sitting in my office waiting for UPS to deliver the lens today. Hopefully I will get it while it is still light out. Thank you. BTW, Amazon has it priced at $849,...A $100 price drop. You can't beat that!

[@DustinAbbottTWI]

That's great value, for sure.

[@stephenwilletts7892]

I was thinking of buying the Sony 100 -400 for my birthday, 25th June, but the price put me off. I'm so glad that I didn't buy it! One question though, how does the Sigma perform at focusing in dull light? A friend of mine has the Sony and has some pin sharp shots taken in December on a dull day , any lens will get sharp results in good light. Dustin, your review is the best I have seen, very thorough and practical.

[@DustinAbbottTWI]

At some focal lengths you will have a little less light to work with (F6.3 vs F5.6), but I do think the Sigma seemed to focus pretty well in all the situations I saw.

[@daniel_b_living6133]

I am going to purchase this lens today. As far as a collar, I'd be purchasing one to allow me to hold it as I walk around and a tripod use in the future. Is there a collar that you recommend that is comfortable on the hand to carry?

[@DustinAbbottTWI]

Sigma does sell one as an accessory that works well.

[@benpearce2044]

Hi Dustin, thanks for the great review (as always!). I’ve been using the 70-200mm f4 for a few years now, and have been waiting patiently for Sigma or Tamron to release a more budget friendly 100-400mm. Not sure if you’ve tested the 70-200mm f4, but if so how does the IQ compare to the Sigma in the 100-200mm range?

[@DustinAbbottTWI]

Hi Benny, the problem is that I've reviewed about 4 70-200 F4 variations, so you'll have to be more specific as to which one you're referring to.

[@benpearce2044]

Dustin Abbott apologies! Typo I my part, referring to the Sony 70-200mm f4 G!

[@TexasCovertCarry]

I bought this lens, in no small part because of your review! I'm excited to get it in a couple of days.

[@DustinAbbottTWI]

Hope you enjoy it!

[@Twothenines]

Thanks for all your videos Dustin, I have bought several lenses based on your reviews. I'll be picking this one up as I am looking for something affordable that performs well. Your content is always high quality!

[@DustinAbbottTWI]

That's high praise. Thank you!

[@mikesmith3235]

That's a really good review Dustin - I am very interested in purchasing one of these now!

[@DustinAbbottTWI]

I think you'll enjoy it.

[@mikesmith3235]

@@DustinAbbottTWI Well it only took me 3 years but I bought one yesterday! Can't be accused of rushing in to it anyway 😂. Happy New Year Dustin

[@ConradGale]

Good review. Is good enough to shoot landscape? Which telezoom lens from Sony FE is the best? 😊

[@DustinAbbottTWI]

It's definitely sharp enough for landscapes. I like the Sony 200-600G the best, though it is pretty huge.

[@gregturner_awod]

Great review Dustin, informative and thorough. Very helpful in helping my decision to buy, and I have pre-ordered in Australia where I live. I was near to buying the GM. This lens, on basis of your review is attractive (and competitive) for performance against the GM. Cost and performance are excellent as basis to buy. No info re tripod collar on Sigma Australia, but your review (written) told me what to look for and I’ve ordered one locally. Thanks for another excellent review.

[@DustinAbbottTWI]

Glad it was helpful!

[@4thNebula]

Excellent and very informative review as always. Two things that still bug my about my Sony that keeps me from going Sony iare 1) the mounts are so variable (some so tight it is hard to get the lens on and off-not the smooth turn and click like Canon) and 2) touchscreen LCD capability is no ware near Canon. I have an A7c though so maybe the more expensive Sony bodies are better. I sold my A7III since the mount was so tight I had to send my Sigma 45mm back because simply couldn't get it on.

[@DustinAbbottTWI]

That's really strange. I've not encountered the mount issue, but the touchscreen complaint is dead on.

[@jimbog3948]

Dustin, thanks for the informative review which has caused me to reassess my situation. I use an A6500 and my longest lens had been a Tamron 70-300 A-mount. When my interest in birding increased I found a gently used Tamron 150-600mm A-mount which also mated well with my LA-EA3. I can no longer complain that my lens is too short! The AF is not everything I had hoped for and the optics are not perfect, but the weight is the real downside. Would you have any comment as to whether I would be better off with the Sigma 100-400 and sell both of my Tamron lenses and the LA-EA3?

[@DustinAbbottTWI]

Honestly, yes. I think you'll be happier with the autofocus, the great image quality, and not having to mess with an adapter.

[@jimbog3948]

@@DustinAbbottTWI Thanks, as good as the LA-EA3 is I figured a native lens would be even better. In my case I should be able to move almost straight across cost-wise once I sell them. I can write off owning the 150-600 to experience.

[@thrumyeyesphoto]

Sign me up! I rented the Sony 100-400 GM and while a nice lens, I wasn't blown away. The contrast and bokeh both leave a lot to be desired. This Sigma looks fantastic for the money!!

[@DustinAbbottTWI]

I do think the Sigma's bokeh is nicer. Much more like the Canon in that regard.

[@davidbudo5551]

Great surprise and review. Solid performance from the Sigma. Thanks Dustin!

[@DustinAbbottTWI]

Yes - it was great to have this opportunity.

[@Michaelpai1230]

Appreciate the review! Patiently waiting for new RF lens content.

[@DustinAbbottTWI]

Right now Canon Canada is not even fully in their offices, so there isn't really any loaners going out. I did review the new Samyang RF 85mm F1.4 a few weeks ago, though.

[@lino100x100]

I've just bought this lens after watching this video! Great product! Now i'm waiting for an inexpensive 70200 2.8 from sigma!

[@DustinAbbottTWI]

Me too!

[@lino100x100]

@@DustinAbbottTWI greetings from Italy 💪🏻

[@aantonich]

Thank you for this very informative review. I just picked the 100-400 tonight for my a6000 at my local store and look forward to shooting with it this weekend.

[@DustinAbbottTWI]

Enjoy!

[@Markbanksy89]

Hey Dustin, great review as always. I was wondering what's the macro performance of the sigma lens like compared to the GM. As far as I know the GM has a closer focusing distance and performs quite well in that regard.

[@DustinAbbottTWI]

Hi there, I do talk about that in the latter part of the review. The GM has a higher magnification (0.35x vs 0.24x), though the Sigma performs well at MFD.

[@Traveljournalist]

amazing review ! I'll buy one for my Leica SL2 !

[@DustinAbbottTWI]

Enjoy.

[@youuuuuuuuuuutube]

Nice review and lens. I noticed you said you never got 20fps with tracking on the A9 but 17-18, with 20fps capable lenses. If you want to reach 20fps, you need to use a fast shutter speed (try 1/2000 or faster) and priority in af should be set to "release", if it's set to "balanced" then you get around 18fps and if it's set to "focus" then it can drop to 0 even.

[@DustinAbbottTWI]

I've done the former but not the latter. Thanks for the tip.

[@thommysides4616]

You learn something everyday....thanks!

[@Someone-lc6dc]

Hello Dustin. I was wondering if you’ll be doing a review of the new Tamron 50-400. I was just about to buy the Sigma, but the Tammy will be sold in my country on Sep 22nd, so… it’s a dilemma. Thanks. Love your content.

[@DustinAbbottTWI]

My review of the Tamron is coming later this week

[@Someone-lc6dc]

@@DustinAbbottTWI Fantastic! Look forward to that one as I’m really curious if it’s worth the extra $ over the Sigma.

[@daniel_b_living6133]

Hi Dustin, amazing channel keep up the good work. Is this the best option under $1000 for a full frame lens that reaches 400mm? For my A7iii.... Seems to be the only option unless I'm missing something. Also would you recommend this lens to be used professionally for paid video and photography?

[@DustinAbbottTWI]

The short answer is that this is really the only valid option with those price constraints and that reaches to 400mm. The new Tamron 150-500mm is also a nice option, but it is higher than your budget.

[@daniel_b_living6133]

@@DustinAbbottTWI So what about this vs the Tamron 70-300? Which would you pick as a better lens overall?

[@DustinAbbottTWI]

Not really. If you want the reach to 400mm, the Sigma is a good choice.

[@flob.8220]

Seems rather durabe and not easy to scratch. My lens - while freely swinging on my camera strap - accirentally hit my bikes steel handlebar with a good speed and luckily has no scratch.

[@DustinAbbottTWI]

I agree that the finish is quite good.

[@newt2010]

Came here to watch the review on the lens and the dogs were awesome to watch. Oh, yes. The lens. Thank you for the in depth review

[@DustinAbbottTWI]

LOL - fair enough :)

[@robertschwarz8702]

I have a question please. I love the lens, I just got one used, a Canon version for my M6 markii. My copy has an anomaly.. Instead of a F5-F6.3 mine is going fromF4.5-F5.6, the image quality is excellent and everything works great. I'm blessed with extra light. I can't find explanation for this anywhere. Thanks I can send you images the meta data will show this.

[@DustinAbbottTWI]

That's some kind of adapter reporting quirk, as it isn't possible for a lenses maximum aperture to change. That's related to the physical opening of the aperture iris.

[@skybrap]

I have a question for you since you're one of my favorite reviewers and you're very knowledgeable, and I'm having a hard time deciding on my next len(s) purchase... I'm a landscape photographer that's trying to produce the best quality work I can for prints. I love the idea of an all in one lens 28-200, but I also think the no IS might be an issue, but I'm normally on a tripod. Would you recommend getting the 28-200, or a 24-105 and 100-400 sigma to complement my 17-28 (love the sharpness of this lens) I hike a lot of miles.. So weight is somewhat of a concern.. Also, is the 28-200 sharp enough to crop in to a 400 equivalent? Looking forward to hearing your input!

[@skybrap]

Shooting on an A7Rii

[@DustinAbbottTWI]

I wouldn't recommend typically cropping that deep if sharpness is a major concern. If your application is smaller, however, that might work. I don't think the lack of OS is a major problem, however. You still get some assistance from the IBIS in your camera.

[@reLahhh]

Hi Dustin, i am impressed by your autofocus shots of the dogs and bird. I am struggling a bit with the autofocus with the Sony A7 III with the Sony 24-105. Can you recommend me some settings?

[@DustinAbbottTWI]

Be sure to select animal priority eye af, use AF-C, and in many cases the Standard 1 focus case is fine. Practice your technique. You should be able to get good results.

[@snowwalker9999]

Thanks for another great review! For an APSC mirrorless camera, would you recommend this lens or the Sigma 150-600mm with an adapter?

[@DustinAbbottTWI]

This is a solid option, though the Sony 75-350 is purpose designed for APS-C.

[@alejandropmorcate]

I moved to Sony from Canon last year and one of the things that was at the top of my wish list was a 3rd party, affordable option for long focal distances. I used to own the Sigma 150-600mm and took great pictures with it. That said, I don't know why Sigma doesn't include the tripod collar as standard with the purchase of this new 100-400mm. $107.00 for an "optional" tripod collar is too much.

[@DustinAbbottTWI]

I think their idea is that many potential owners of this lens won't actually use a tripod collar and so this approach allows them to keep cost down for those buyers.

[@alejandropmorcate]

@@DustinAbbottTWI I'll buy this lens anyway :). Thanks for another great review!

[@alibuhlaiqa8384]

Excellent video review, I just bought my Sony 100-400 GM two days ago. Watch your review make me wonder if I pulled the trigger bit early

[@DustinAbbottTWI]

It does muddy the waters for sure, but if you're happy with your lens, don't worry about it.

[@petrh.4947]

Thanks you very much for this 'early bird' review . This time I was patient to watch your detailed review :-). It is hard to believe that Sigma is so close to GM optically. For landscape in some cases you have to go to F18 or even F22. 70 mm filter would be better, one can live without door in hood. Collar if over 120(?) bugs sounds like not Really Right stuff. @Ali: GM is fantastic, I would not look around and keep shooting. I was close to pull the trigger for autumn season but now has to wait.

[@terryhe9857]

One Question: you are testing auto focus on A9, which is the best auto focus body in sony world. A9 will bring auto focus gap closer. I wonder if you test auto focus on A73 or A7R3, How the auto focus performs compare to 100 400GM

[@DustinAbbottTWI]

The drop is about average. Yes, the quality of focus is somewhat less, but by about an equal amount.

[@bobpeticolas121]

What reviewers miss about the GMaster lens is that you can stop down to f22 with no noticeable diffraction. As a landscape shooter, that added sharp depth-of-field is the single most important feature to me.

[@DustinAbbottTWI]

Hi Bob - what camera body are you using? You certainly can't stop down to F22 on the higher rez a7R bodies without any penalty from diffraction.

[@bobpeticolas121]

Hi Dustin. I'm still shooting the a7rii so 42 MP. When I was shopping for the lens, I first noticed the difference in comparing the Canon 100-400 with the GM in the DXOMark measurements. And what I found in use after purchasing the GM was that there was no NOTICEABLE diffraction at f22. I'm sure there is measurable diffraction with fine instruments, but my images still look ultra-sharp at f22 across the zoom range. It really makes focus stacking a long lens manageable. At f8 and a long focal length, you sometimes need far over 100 images to really focus stack a long shot.

[@bobpeticolas121]

But, yes, Dustin, physics dictates that there must be some diffraction at f22.

[@DustinAbbottTWI]

It's definitely true that DOF at long focal lengths is surprisingly shallow for landscape applications even at F8

[@dubbogan8901]

Hi and thanks so much for the fantastic review. Are the air / thermal pocket issues you highlighted a problem with any super telephoto? I am looking for a telephoto for landscape photography and some sports. Was hoping to get this lens but not if this issue makes it too compromised. Thanks again

[@DustinAbbottTWI]

For every telephoto lens. It depends on the environment you are shooting in - there are thermal pockets of air over long distances that distort any light waves.

[@dubbogan8901]

@@DustinAbbottTWI Thanks for the speedy reply and keep up the great work. Cheers

[@andresdelacerna7846]

Hi mate, thanks for the video pretty good. What is your opinion in order to use this lens for land based surf photography? Because is more rhan 6 meters in order to capture the object (surfers). Thanks in advance mate.

[@andresdelacerna7846]

And also I can see I big difference between the first review in 2017? Related with the autofocus? The pictures from your dog in that old review were less sharp than in this video, so just a little bit confused. Thanks again, hope you can reply me. The Tamron 28-200mm looks pretty good also but no image stabilisation with my Sony a7s.

[@DustinAbbottTWI]

Hi Andres, those two reviews cover two different lenses. The original video was for a lens designed for DSLRs, this second video is about a new lens designed only for mirrorless cameras. They aren't the same. This lens should work fine for your application in capturing surfing.

[@i04pbull]

Thanks for this thorough review. Can I ask a logistical question about this lens? If this were mounted to say an A7Riii/iv, and put into apsc mode, would its reach be increased to c.150-600? And if so, how would you expect this lens to perform under such conditions? I understand that the A9 might be better matched for speed, but could the A7R be able to handle detail over such a large distance? Many thanks to anyone able to reply.

[@DustinAbbottTWI]

Because the crop mode just crops the image in camera, the detail is going to be the exact same as in full frame mode; the image is just cropped. This lens can handle that just fine, but you are only advantaged if you wanted the lower resolution shots already cropped as opposed to doing an individual crop in post.

[@i04pbull]

@@DustinAbbottTWI this makes total sense now you’ve said it - thanks for taking the time!

[@williamlynd3052]

@@DustinAbbottTWI I felt the same, but there is a slight argument about composing the shot while taking it?

[@lsaideOK]

Another wonderful review. Tamron seems to have diverged from Sigma in the way they are complementing Sony's range of lenses (i.e., 28-75 v 24-70) so I don't know if Tamron will compete directly with a 100-400 of their own. With your recommendation, I got the Tamron f mount version of this lens and love it. Right now, the lack of support of third party lenses for the Z system is a point against and will keep me from moving there for the foreseeable future. Sony really has taken their early start with mirrorless full frame and run with it. On a side point, I don't think you've ever looked better in one of your videos!

[@DustinAbbottTWI]

They've got to solve that Z-mount issue if the system is to survive. Thanks for the compliment.

[@LiquidTurbo]

Hi Dustin, I have never clicked affiliate links for any KZbinr generally. You are the first KZbinr that i've consciously made sure I use their affiliate link because of the high value you bring to this review. Thanks again and I hope you get the commission!

[@DustinAbbottTWI]

Hi Brian, that is very kind of you. Thank you.

[@timelapsebylkunl72]

Great review as always. It's very interesting lens. I really like that they have option for tripod collar.

[@DustinAbbottTWI]

Definitely. It's an important addition.

[@tim2468]

Returned mine today. Auto focus failure at 27 deg F mounted on a Leica SL2. Warm it up and it worked again. Cool it down it failed. Repeatable failure. Also felt the images were soft on several dozed test images I did at room temperature. Maybe I got a bad one?

[@DustinAbbottTWI]

It sounds like it, Tim, as I've not had any problems with mine nor any similar feedback from other users.

[@amirgood]

Thanks so much for your great reviews. Your work is greatly appreciated.

[@DustinAbbottTWI]

My pleasure!

[@amb86]

Best review on this Lens! Thank you so much Dustin!

[@DustinAbbottTWI]

My pleasure!

[@keepcoding1]

Thanks for the thorough review! I just don't get why Sigma would omit proper weathersealing in this lens. I mean even the cheaper DSLR version has weathersealing... Knowing how much dust can get into an unprotected lens e.g. on a safari, it is a deal breaker for me.

[@DustinAbbottTWI]

I'm not sure all of your facts are correct here. The DSLR version has weather sealing at the mount, as does the DN version. Neither has advanced sealing throughout the lens, but they both have the same level.

[@martijn5207]

Good review Dustin, as always, thank you! Nice that you already got the lens weeks in advance! Wanted to buy one immediately.. but then i thougth, since you got the lens way before others do, how will that impact the review? If you are too critical companies will not give you stuff to review anymore (before announcement). So how objective is the review? Another question that came to mind in cases like these were a lens copy is selected and given to a reviewer, which copy do you think they gave you? A bad copy, a random copy or a very good copy? I think i know the answer. Do not want to give you critique, since your reviews are very thorough, but it came to mind and i think i need to take these factors into account.

[@DustinAbbottTWI]

Fair questions, though I guess, as always, you need to trust in my integrity. If you don't trust my integrity as a reviewer, you probably shouldn't watch my reviews. I've always been very open with both my criticism and praise, and I've never yet had a company try to get me to change my remarks. As for "cherry-picking" a lens, my experience is actually that a very early lens or prototype is actually more likely to have issues than when production is stabilized later on. I've often reviewed multiple copies of a lens at different points or bought a different copy for myself later, and I've yet to find the performance of the second copy radically different.

[@martijn5207]

@@DustinAbbottTWI fair answer! Thank you and keep up the good reviews! Do you also have the tamron 28-200 in for review? I am wondering if it sort off can compete with the tamron 28-75. I have the 28-75 and was wondering if it could be replaced with the 28-200 to trade a little bit of image quality to a much larger zoom range. The 200 seems like to have much distortion and thus resolution loss.

[@serviola3]

Great video. Thanks very much. I was thinking about the GM second hand, but It Is so expensive, and after watching your review, I will go for this Sigma 100-400. Thanks very much.

[@DustinAbbottTWI]

Enjoy!

[@mrDoctorWho0]

Just sold my 100-400 for Canon. Used it with Sigma MC-11 on my Sony. It wasn't very good, but acceptable. Definitely going to look at this lens.

[@DustinAbbottTWI]

This is definitely going to work a LOT better for you on Sony.

[@j16m02]

Thank you Dustin. I currently shoot the Sony 70-350 on my A6600 and A7R III and am very pleased with it. However, I'm not gonna lie, the extra 75mm equivalent reach and the potential for a tele converter is tempting. The almost double the weight, not so much for an arthritic old man. Decisions.

[@DustinAbbottTWI]

It is a tough decision. The fact that you have both APS-C and FF is a vote for the Sigma, as I'm assuming you're shooting the 75-350 in APS-C mode.

[@vladimirivanov6353]

This lens 350mm is for APS senzor ,doesnt work full frame...so,if you have sigma FF is 100 to 400 but for APS is 150 to 600mm and Performers this lens is like GM lens!

[@j16m02]

@@vladimirivanov6353 Actually it works just fine. It gives me an 18mp image, with a105-525mm range. Maybe not ideal, but for most of my uses, adequate. I'd love the extra 75mm reach of the Sigma, bus I'm an old guy with bad knees, The Sigma weighs more than double what the Sony weighs and is substantially larger. Is that trade off worth it? Tough decision

[@studiotessellate]

Hi, I just got this lens a week ago and I am noticing that the autofocus when shooting in video mode is veeeery slow compared when shooting photos. I mainly do videos and this seems to be an issue for me. I tried it both on my a7iii and a6600 and had the same experience. Have you had similar issues? I also haven't updated the firmware of the lens from 1.0 to 2.0 since I have to ship the lens for that. Thanks!

[@DustinAbbottTWI]

Hmmm, I don't recall any such issue, but I scarcely used the lens for video. I think doing the firmware update would be wise.

[@brianl8843]

Wow a Dustin Abbott review just when this lens was announced? A real treat!!

[@DustinAbbottTWI]

The main Sigma Canada rep really went to bat for me with Sigma Corporate to give me this opportunity. I consider it a great compliment and appreciate it a lot.

[@ekremgj]

Are u using the sony 24-70 for this video?

[@DustinAbbottTWI]

The Tamron 28-75mm, actually.

[@RichardsWorld]

So, how does it work on that Sony A7SIII that you aren't talking about? 😀

[@DustinAbbottTWI]

I'm afraid that I haven't laid eyes on such a camera.

[@Keilikeramen]

Thank you Dustin for great review, I would like to buy a lens for kid sport which one is better for auto focus between sigma 135mm f1.8 art and sigma 100-400 on A9, I consider to buy 85mmf1.8 and 135mm (if auto focus can keep up for sport) or 85mm f1.8+100-400mm sigma.

[@DustinAbbottTWI]

I would say the 100-400 DN because it is actually designed for Sony autofocus.

[@Keilikeramen]

@@DustinAbbottTWI Thank you very much Dustin for your opinion.

[@petrstefek4438]

Hi Dustin, your review helped me a lot with the choice of the lens)) ... ordered ... greetings from the Czech Republic)) Peter

[@DustinAbbottTWI]

Glad I could help!

[@חייםכהן-ה4פ]

Hello Dustin Thanks for your review, I wanted to ask you how much autofocus is faster than their version of the updated Canon cameras?

[@DustinAbbottTWI]

It's much better.

[@robertbohnaker9898]

Hi Dustin. I’m considering the sigma 100-400 vs the Sony 70-350 with the Sony a6400. Did you test the sigma on the Sony crop cameras at all ? I’m reticent to transcribe the a9’s AF performance and the Sony a6400 with this lens. Thanks.

[@DustinAbbottTWI]

I didn't test on any APS-C bodies.

[@tomirwinphoto]

Love the Sigma 100-400 and your review but I just discovered that the lens hood does not have enough room to simultaneously attach my K&F 67mm variable ND filter.

[@DustinAbbottTWI]

I ran into a similar problem with the Sigma 28mm F1.4 ART. That’s a real oddity these days.

[@madfox7777]

If you set the a9 priority af-c to release you'll get the 20fps every time. It may drop a frame or 2 but normally most are in focus.

[@DustinAbbottTWI]

Good feedback.

[@geekdomo]

I just got the 1.4 TC for my 100-400 GM. I am wondering how it works (if at all with this Sigma). Goal is to sell my GM. Get the 200-600 G and maybe this lens here. If the TC worked it would be icing on the cake. Edit: LOL I have the 105 Bokehmaster so thats a great + for this lens already

[@DustinAbbottTWI]

I haven't been able to test it with the 1.4x. I have a guy that's supposed to test that for me, but I haven't heard from him yet.

[@jenellm09]

So I know this is an older post, but I just recently purchased the a7iii and would like a lends to photograph my daughter's soccer games and was wondering what your recommendations would be. Budget around 1k if less that would be great, but I want something that's going to be decent quality.

[@DustinAbbottTWI]

This is probably your best bang for buck in that price range. The Tamron 150-500mm is the better lens optically, but costs more.

[@jenellm09]

Thanks!

[@mzbar]

Hope to hear the news soon regarding the Sony TC compatibility with the sigma 100-400 FE

[@DustinAbbottTWI]

At the moment, it's not great. The TC will physically fit, but autofocus doesn't happen and even aperture doesn't correctly report. It is possible that firmware update will improve things.

[@tamj0506]

Hello, I decided to purchased the Sigma 100-400 with the help of your review. The lens is great, but I have one issue I was hoping you could help me with. I have a Sony a7riii. My subject is a statue. When I shoot continuous with OS on and all shutter speed below reciprocal rule. Only the first shot is in focus. I've tried several different shutter speeds. Happens with mechanical shutter and e-front curtain shutter. It does not happen with electronic shutter. Single shot photos are perfect. I believe there is an issue with shutter slap and the Optical stabilization in the lens. I called Sigma and was told it was my settings, but they couldn't tell me which ones. I have a Fuji XT2 and 55-200mm lens and it shoots mechanical shutter and continuous hi with OS and every picture is in focus. This is a little frustrating for me, any help would be greatly appreciated. Thanks, Ted.

[@DustinAbbottTWI]

Hi Sig, that's odd, but I think you're the second person to contact me about this issue. Unfortunately I can't diagnose the problem, as I don't recall seeing that issue myself on my cameras, and no longer have the lens.

[@tamj0506]

@@DustinAbbottTWI Thanks for the information. It does help me. Thank you for replying. Have a good day.

[@natureistheuniverse9276]

Nice!!! After 3 years! I bought this lens and it's fantastic!

[@DustinAbbottTWI]

Ummm, this lens was just announced today. No one has had it for three years. I've had it for a few weeks to review prior to release.

[@natureistheuniverse9276]

@@DustinAbbottTWI Oh, this comment was posted before I watched the video, didn't knew ir was one new for Sony. I thought u did again a review of the Sigma for Canon after three years! 😂

[@aroubin]

Great, detailed review. Thank you!

[@DustinAbbottTWI]

Glad it was helpful!

[@TheChoofamily]

By chance have you been able to test this lens for astrophotography? How is it coma-wise and keeping the stars' shape? Thanks!

[@DustinAbbottTWI]

I'm afraid that's not something I typically test with telephoto lenses.

[@Someone-lc6dc]

Hi Dustin, I wonder… would you say the RF100-400 or RF100-500 are sharper and better in terms of IQ than Sony’s GM100-400? I suppose Sigma’s IQ is not quite there, or is it?

[@DustinAbbottTWI]

I have not been able to get my hands on the RF 100-500 yet, so I don't know the answer to the first question. I found a little give and take with Sony's 100-400, but I preferred the Canon overall. The Sigma isn't quite as good optically, but it is close. Where it isn't close is in terms of autofocus performance, where it lags behind a fair bit.

[@williaminbody205]

Nice review. I need a telephoto for my SL and I am looking...deciding which one.

[@DustinAbbottTWI]

Glad I could help out.

[@takpai]

Hi, I just got 2 copies of this lens(Got the 2nd one thinking the 1st one is defective), and they both suffer from the same problem as Bernard described in his review (@. Wondering if you see the same problem? I did lots of testing and found the problem is related to OS=enabled and using mechanical shutter together. (Which is the normal setting for most use cases....). I think all of the early reviews never mentioned focusing issue for burst modes... may be it has to do with the recent production batches...

[@DustinAbbottTWI]

I'm not exactly sure what problem you are describing (I don't know who Bernard is).

[@takpai]

@@DustinAbbottTWI Morning Dustin, Thanks for replying :) I forget to attach the link to Bernard's review of the sigma 100-400. But here is: (kzbin.info/www/bejne/m3XaZ3mbepaEga8).

[@dljor23]

A worthy upgrade to Sony 70-300 FE?

[@DustinAbbottTWI]

I think so.

[@robt4194]

May I ask - if you put this on an aps-c camera like a Sony A6100, will you get a 1.5x magnification (cropped) - so the FOV acts like a 150-600mm mounted on a full frame camera (with less pixel resolution) ? I have the SEL55210 55-210 and I get 55-210 since it is designed for a crop sensor

[@DustinAbbottTWI]

Hi Rob, so you do get a 150-600mm equivalent angle of view, but your 55-210 is multiplied by the same crop factor (all lenses focal length have to be magnified by the crop factor they are attached to). Here's what you'll find on Sony's website: 35mm equivalent focal length: 82.5-315mm. This is a point misunderstood by a LOT of people; camera companies could definitely do a better job of explaining it.

[@Eigil_Skovgaard]

Would it be possible to combine this lens with Sony's converters - and do you have any experience with such a combination?

[@DustinAbbottTWI]

They do not work, unfortunately.

[@Eigil_Skovgaard]

@@DustinAbbottTWI Thank you.

[@rowanwhile]

Excellent review, thank you so much

[@DustinAbbottTWI]

Glad it was helpful!

[@dallasroberts3206]

Very well done, thanks. Yes I’m hitting the subscribe button now. 🎬📷

[@DustinAbbottTWI]

Welcome aboard!

[@dallasroberts3206]

@@DustinAbbottTWI Thank you, I did purchase the lens. Anxious to put it through its paces. I won’t receive it for several days stilll.

[@alexandrah.4244]

On my Sony Alpha 6400 i use the Sony 70-350… i don’t know if i sell this lens to Buy this Sigma Lens to use ist also on my A73....what do you mean? Is the Sigma better than the Sony 70-350 ?

[@DustinAbbottTWI]

I haven't tested the 70-350 yet, so I don't know for certain how they compare, but I would say that having a lens that you could use on both your camera systems would be handy.

[@NguyenJulian]

Do you find that the tripod mount is necessary?

[@DustinAbbottTWI]

That really depends on our personal needs. I mostly need a tripod collar because I shoot formal tests from a tripod, but I often don't use it for real world use.

[@BenjaminAdamsVu]

Thanks Dustin, will this lens work with the existing Sony TC's, any word on that yet??

[@DustinAbbottTWI]

I've got an insider that supposed to test that combo for me and let me know what they find out. I'll pin a comment on the reviews when I hear.

[@frankluo230]

In the middle of review when comparing image quality, you talk about Canon 100-400L but both left and right images have sigma 100-400 title with different shutter speeds written. Is this an title error or you just comparing to Canon's without showing the images?

[@DustinAbbottTWI]

That's just an import title. If you look underneath you will find two different lens designations. I imported all the test shots in the same batch.

[@JackieSemple]

Thanks for this review. Really helpful. I bought the Mark 1 version and while it was a really sharp lens it was let down by its Autofocus, to such an extent that I had to return it to the photographic supplier. In lieu I picked up the Sony 70-300 which has never disappointed me but there is a difference in the FL. So if I can get a good part-exchange deal with little money to change hands, then I'll go for this. Regards.

[@DustinAbbottTWI]

That was the conclusion of my review of the older version, too.