Sigma 100-400mm f/5-6.3 DG DN for Fuji X Review: Great Performance for HALF the Price!
Вставка
- Опубліковано 15 лип 2024
- Thanks to Skylum for sponsoring this episode! Expand the boundaries of your photos with Luminar Neo. Get an exclusive 15% off offer on Luminar Neo and everything on checkout, using coupon code PETAPIXEL15. skylum.evyy.net/c/63121/16958...
This is PetaPixel's Sigma 100-400mm f/5-6.3 DG DN for Fujifilm X review! While it's been available in E-Mount and L-Mount for some time, the Sigma 100-400mm f/5-6.3 DG DN OS Contemporary is now available for Fujifilm X-Mount! See how this lens compares to the MUCH more expensive Fujifilm 100-400mm f4.5-5.6 LM WR.
Read the full review: petapixel.com/2023/08/31/sigm...
Rental equipment provided by The Camera Store
www.thecamerastore.com
0:00 - Intro
1:28 - Sample images
2:15 - Design and handling
3:13 - Close-up performance
4:07 - Autofocus
4:35 - Flare
6:25 - Bokeh
7:25 - Sharpness
8:29 - Should you buy it? - Наука та технологія
It should be said that lenses designed for APS-C being more compact only applies to wide-angle & wide-normal lenses because those are ranges where the size of the front element and rear retrofocus lens group (which focuses the light tighter onto the sensor) is largely depended on the actual field of view (e.g a 14mm for full frame requires a very large front element to capture light from dramatically steeper angles, while an APS-C 14mm can be much smaller). At telephoto ranges above ~80mm this difference completely diminishes, and the size of the lens is basically entirely decided by the focal length and aperture value which mathematically is the same regardless of sensor size, and so even if the rearmost lens group could be smaller for an APS-C variant, the size of the barrel would still be the same to support the rest of the lens body.
TLDR Sigma made the right choice to adapt it to Fuji as-is, and it seems like a great lens.
About your aperture comment - is this really true? I though that the f-stop was the ratio between the lenses pupil opening and the image circle size. So a lens designed for a larger sensor would have a physically larger pupil, thus having shallower depth of field (the amount light hitting the sensor is the same though because of the crop)
@@spakecdk f-stop is the focal length to the aperture diameter, not image circle diameter. So an 200mm F2 will always have to have an opening of at least 100 mm, regardless of it projecting an image on a 1/2" sensor in a phone or a medium format sensor.
The difference is that to project on a medium format sensor, the 'view angle' of the lens will also become larger and larger, and at some point the front element will have to become larger than the minimum size dictated by its aperture, as the original commenter pointed out.
And ofcourse, the 200 mm lens on a 1/2" sensor will have a tiny angle of view, so it will appear much, much more 'zoomed in' as it will on a medium or large format application. So when you look at a use case, perhaps a 200mm f2 would be competing against a 600 f4, and then suddenly the size argument does come into play again.
@@spakecdk No, that's correct, and that's exactly what I said is the reason why a telephoto lens will have the same size regardless of the sensor it's made for. But on a ultrawide lens, you have to take into account both the entrance pupil AND the required angle of view. Look e.g at the Viltrox 13mm 1.4, and compare it to the Sigma 14mm 1.4 ART. Despite both having almost the same entrance pupil size (9,3mm & 10mm) the Sigma is so huge because 14mm on full frame has a dramatically larger field of view, therefore requiring a larger bulbous front element even though the entrance pupil is almost the same.
Whereas on a telephoto, the difference in angle of view is too small to really affect the lens size, and thus the size is ONLY dependent on the focal length and aperture ratio.
Sony 70-350 is tiny compared to an equivelant ff lens
@@owengee7415 We're not talking about equivalent lenses, so that's a completely different topic. We're talking about keeping the SAME optics but just changing the size of the rear image circle projection.
If anyone out there is interested in a good affordable telephoto lens for Fujifilm, look at the relatively new Tamron 150-500 f5-6.7. You lose a little bit on the wider end but it also gives you a bit more reach than the 400.
Best lens I own. 7inch minimum focus distance. Can't beat it
2:40 What happened here? It looks as if an animal took a huge dump on his hand, arm and shirt. Jordan must have cut in a very smooth edit to fix it…
@@Carlos-jh5tb7” minimum focus distance? That is not possible. Even remotely possible.
Price tag and made in Japan reason enough for me to go with the Sigma
@@jjchockey It´s 23.6 (0.6m) inches at 150mm and 70.9 (1.8m) inches at 500mm.
Great coverage of this lens Chris. One aspect that lens and cameras reviewers never cover is how well does equipment work in cold weather. I can see why when all the reviews are done in nice weather. Well I bought a Sigma 100-400 lens for my Canon 90D in November. It’s now January 2024 and here in Toronto it’s -8 to -16C. I’ve had my 100-400 out in subzero weather and it works perfectly, focus is fine and most importantly the zoom ring turns as smoothly as ever. Not so much with some other lenses I have. They get stiff in cold weather. My experience anyway.
Thanks for the review. I've got this lens in e-mount, and have used it on both the aps-c and the full frame bodies, with excellent results. Great that my buddies with Fuji can now enjoy the Sigma offerings.
Thanks Chris ... clear information for this lens... cool and love it
Good review, pleasing to watch, as always 😊
Keep the good work 👍🏻
Would love to see the 150-600 or even the 60-600
Jordan and Chris are covering some issues that Tony and Chelsea Northrup did not cover into their video like AF speed from infinity to minimal focus distance. This lens is good buy for the price and good addition to the X-mount.
I have the e-mount version and it’s pretty impressive for the price.
I finally caved and got a Tamron 18-300mm for Fuji. Came home and see this was released! This one looks really fantastic for telephoto.
Late night upload for UK, but I'm here for it! Always down for Petapixel reviews
The bokeh on this lens is *gorgeous* I find! Creamy, smooth, belies the lack of speed and drips character. Coupled with Chris's always excellent photography you have a winner. Good job guys.
X-mount lenses seem to be building steam. I’d probably go for the Tamron 150-500 but I hope Sigma’s investment in Fujifilm is an indicator that the system is healthy.
I have this thing for Sony E mount and it's one of my favorites
I like Jordans overexposure style and the Samba and percussion music!
i have the full frame version for Sony E mount and it is an excellent lens. mine came with a lens collar ...makes a great handhold
I've sort of been pawing through Tele options for my XE4. Perhaps this is the one. I've always had a pleasant time with my Sigmas.
The X-T3 is still an absolutely incredible camera. I use it a lot for video, though never with autofocus as my Canon FD collection does not feature any autofocus. The only thing I feel like really missing out is the dynamic range of the new Fuji sensors. Going from ~10.5 stops to around 14 stops in video is just night and day. Where the X-T3 will blow out windows when filming inside, the X-H2s will retain a good amount of information in them. I'll drive my X-T3 into the ground before I let it go though; for photography especially it is still an incredible camera - though after the recent price hikes not as good as a used deal anymore (I could sell my X-T3 now for close to what I bought it for more than three years ago).
These videos really want to make me invest in some modern lenses and get back into shooting with autofocus.
It's 3.5 stops difference in DR between X-T3 and XH2S? Wow, thought it's only 1-1.5 stop difference. What about X-S20? This camera has the same sensor as X-T3, however has also FLOG2 like the newest Fuji lineup.
@@tycjanjakubczyk Maybe CineD has a review of your model. They release the dynamic range in their tests.
I'm really curious how FLog2 works on your sensor. After all, it's supposed to read the sensor in 14bit and thus get more dynamic range than FLog. I always assumed this was a limitation of the sensor, but maybe it actually is of the image processor and they managed to squeeze out 14bit readout for the old sensor...?
@@tycjanjakubczyk
Its FLOG2 thats responsible for the dynamic range difference, its hardly 3.5 stops, its more like 1 stop in highlights and maybe half a stop in the shadows, thats still significant.
X-S20 has FLOG2 but the X-H2s has better codecs to utilise more information. Its also dumb to shoot interior video without using lights, there no excuses in this regard as even Hollywood cinema cameras uses ND filter on windows and large sets of interior lights to get good lightning, thats why Hollywood movies look good, its not the camera, its the set production is off the rocker in terms of budget.
An interesting comparison for this lens would be the Tamron 18-300mm, it is a bit shorter on the long end but has the same aperture and a substantial difference in price and size/weight (without even considering all the reach from 18-100mm). You can definitely see the advantage of it being a specific APS-C lens there. It would be great if you could comment on how they compare image quality wise. Cheers!
I have both the Tamron 18-300 and the Fuji 100-400. The Fuji is dramatically sharper than the Tamron. However, the Tamron is good enough for me to take traveling and not having to have to swap lenses. Just don't pixel peep. And don't try to use it on the X-Pro1! I've tried.😅
I thought really just like you before rent 5lens and compared.TAMRON18-300mm,TAMRON150-500mm,SIGMA100-400mm,XF100-400mm,XF150-600mm
To be honest,All 5lens are great.Very difficult to choice.Depend on how to use the lens.
My opinion is ultra-telephoto lens is more than 400mm[APS-C].Only TAMRON18-300mm is not ultra-telephoto lens.But super versitile i recomend as well.But it has CONS "Maybe someone will need more focal distance&resolution&AFperformance in the future"…
so i would recomend to buy TAMRON18-300mm first.and after it need more focus lengh.go to TAMRON150-500mm[strongry recomend!nice lens] or XF150-600mm.
I wish to be release 50or60mm〜400or500mm for APS-C lens in the future like TAMRON
50-400mm.
But I wish more Light and small than TAMRON50-400mm.that's a real versitile lens…
◎TAMRON18-300mm➡Versatile lens for sure.But not for small wild life
【PROS】Super versitile,Light and compact,easy to carry,reasonable,minimum focus distance【CONS】Less focal length,cheep looking,resoratlon&OIS&AF(especially AF-C) is lowest performance[quite difference] of these lenses,
◎◎TAMRON150-500mm➡Reliable ultra-telephoto lens※※My best recomendation※※【PROS】Quite fast and reliable AF&OIS[same ability with XF150-600mm],Quite nice good resolution,minimum focus distance【CONS】Most heavy lens of these lens
◎SIGMA100-400mm➡Good balance ultra-telephoto lens【PROS】not much heavy,Quite fast reliable AF&OIS[same ability with XF150-600mm]【CONS】Minimum focus distance
◎XF100-400mm➡good ultra-telephoto lens
【PROS】Brighttest,nice bokeh,teleconverter,nice color rendering【CONS】high price,Minimum focus distance,AF is not the fasttest of these,heavy,
◎XF150-600mm➡Reliable ultra-telephoto lens
【PROS】teleconverter,nice Resolution,nice color rendaring,fast reliable AF&OIS【CONS】high price,Minimum focus distance,heavy,long,Most darkest lens of these
6:55 if you told me that I would be eating a sweet potato while listening to someone talk about soap bubbles and onion rings I'd say you are a creative thinker lol
Looks like an interesting alternative to the Fujifilm 100-400mm lens. I probably would not buy this lens though as I already have the excellent Fujifilm XF 70-300mm lens plus the 1.4x TC. It has a linear motor, focus limiter too and is weather resistant. The images look really sharp and full of contrast with punchy colours when paired with my X-S10.
How did it perform for video? Was the IS effective?
Why don't you make another video to compare tamron 150-500mm x-mount version with this lens?
I'm interested in this as well.
I spent 1250 euro a couple of years ago for the XF100-400 mm back when the price was a bit more affordable and there was also a 350 euro cashback. When it comes to image quality that lens is a lot of times overlooked and it's actually one of the sharper Fuji lenses, but boy, that 1000 dollar difference is a no-brainer if someone is interested in a telephoto lens.
Does it work with Fujis 1.4 x TC or is Sigma planing to release an own? I'm personally waiting still for some wider aperture long lenses. Where is the 400 f4 in the Fuji lineup?
How does the EF mount version with Fringer adapter compare?
Good review Guys, and in this video you have some image problems Jordan Fixed please hahaha
Which budget zoom lens is suitable for a micro-four thirds camera? I have a Panasonic G7. The reviews about 45-200mm are not very good. Any suggestions. Looking to buy a used one. thanks
Would 40MP sensor help get more detail and zoom on this lens?
😊😊😊😊😊
Make an episode with only red pandas and camera gear packed with iso, depth of field, shutter and so on for photography and videography.
8:57 stunning shot! wow
It is worth noting that it is the same lens that was already released on F and EF mount (I think Pentax K and Sigma SA mount as well) but with its base extended to account for the shorter flange distance on mirrorless cameras.
This is a great, albeit old lens. That's one of the reasons the price is low.
Also, it's decently able to exploit the 26MP sensor in those Fujis but it's a bit on the limit of its capabilities go. I'm sure a lot of X-T5 or X-H2 users woukd see the softness with a 40MP sensor, in which case I woukd advise either going for the Fuji 100-400 or thr Tamron 150-500 which is in the same price range as the Fuji.
Or hey, even the excellent Fuji 70-300 if you're okay loosing about 1° of angle of view at the long end
On their website Sigma states that the optical formula for their DG DN lenses are different (even if slightly) for mirrorless mounts. They also show a diagram of the differences between this 100-400mm DG DN and the older 100-400mm HSM for dslr’s. Whether the differences affect overall sharpness and performance though may be debatable.
4:07 Plot twist: it's not that it is overexposed, it is just that Chris is radiating light.
jordan should record an episode with this lens at max zoom, as a bit
I can get a used Fuji 100-400 for about £750 from MPB which is £250 less than the Sigma and it comes with a tripod mount. Do you reckon that is a better way to go even though it’s older spec and 250g heavier. Thanks
Wouldn't the 70-300 with the 1.4 teleconverter be a more sensible option? Yes it's a bit more expensive, but way more compact, bigger reach and a wider aperture (from 70 to 300 at least)
would also love to hear comparisons to that!
I traded this lens to the tamron 50-400 and i think it would be an even better fit for fuji platform
3:54 I thought you guys promised us a disclaimer xD
I need a competitive 150-600 that is faster than the Fuji. Even if it was 7.1 on the 600 end.
So is this lens 400mm or 600 on Fujifilm, if it’s a full frame lens won’t this be equivalent to 600mm ish on APS-C? Or do I misunderstand.
They should've released the 150-600C to compete with XF150-600
i always wonder what xyou mean with those noct weight?
I'm still waiting for a 60-280 or something like that. I don't really need a 400mm on apsc
Sigma need to step it up on the Fujifilm side because Tamron are eating their lunch, so it’s great to see this alternative to the XF 100-400.
I thought this lens was not weather sealed. Looks like a great deal!
According to Tamron, it is "moisture-resistant construction benefits this lens' use in inclement conditions." Having own a Tamron 28-200 for Sony with the same "moisture-resistant construction benefits this lens' use in inclement conditions," I can attest that it is weather sealed.
About time.
I had the optics on a Lumix S1 and the S1R some time ago because the reviews on Sony E were mostly very positive. However, I was not very fond of the performance at the edges. The PanaLeica 4/70-200mm was much better with the 2x teleconverter. Of course, it may be that the optics on APS-C thus present themselves much better.
It's a cheap lens for this focal length, so it makes sense that it isn't too sharp. It's a good kit lens level, like the sony 70-300.
@@proksalevente maybe, but I was a bit disapointed.
I didnt even notice it was overexposed. lol
Hello, what camera was this video shot on and which brand memoy card was used and lastly which ediitng software was used to edit the footage ?
Despite the title card, this was shot on the Panasonic G9 II with a Sandisk V90 SD card and edited on Final Cut Pro. Hope you liked the look!
- Jordan
Yes, your videos are always amazing, my only concern is glitches that coming at 7:08,5:35,2.39sec as I am also experiencing these glitches for sometime in my videos, no matter which camera I shoot Nikon z8/z9, Canon r5, Sonya7s3 with v90 cards from prograde.lever or Cf express card from Prograde Cobalt or Angelbird, which makes me think of that FCPX is worst in handelling such glitches and often dosent allow you to export the video unless you delete that specific frame , however in Pr or DVR it shows glitches and let you export. @@PetaPixel
So wait this new X mount lens is using full frame optics? Hopefully it’s optically excellent. Not good, not very good, but excellent. If it’s designed for 50mp full frame, 26mp xtrans should be up there.. hopefully.
A 26 mp crop sensor has a higher pixel density than a 50 mp FF sensor. So the lens really needs strong central performance in order to excel on the crop sensor.
I've used one of these on a Sony A7R IV with 61mp. Excellent results.
Awesome work guys. Double thumbs down for Jordan for overexposing the shot😂
Ever since I bought a Tamron years ago, I’ve only bought camera company lenses.
One key bit of information that you’ve missed is regarding an aperture ring. I guess that this lens doesn’t have one?
The canon EF version is 699 new on B&H. I would save $400 using that on my XT3 via fringer pro II adapter. Assuming they’re using the same optics. I’ll have to research that cause it’s not clear.
That is the old DSLR model, which is optically different.
The Canon version is indeed optically not the same. However, they were released one year apart, so they're not different generations of optical performance. However, I wouldn't recommend buying an EF lens to adapt to X-mount. Still, the EF sigma 100-400 has done very well for me on my RF/RF-S cameras!
@@856pm5 The EF/F mount (HSM) version was released in 2017, while the E/L mount (DN) was released in 2020. That is not one year apart.
I have the Canon EF version of this lens from when I mainly used a Canon DSLR and I use it with the Fringer EF-EX II adapter on my X-S20. Works fine.
What about using this lens with teleconverters?
I have the older EF version of the Sigma 100-400mm (which looks similar, has same max aperture, but is not a mirrorless design). Sigma had 2 teleconverters for this lens. But to my knowledge the Sigma teleconverters are not available in any of the mirrorless mounts?
Does the lens then instead work with the Fuji teleconverters?
No it won't.
@@kaneclements7761 That's too bad then.
Well I hope that at least the AF will be improved over the AF of the EF version of this lens with Fringer adapter.
A Sony sabe que está a frente do seu tempo e coloca ainda na lista oficial em linha, as A7iii e a7c como câmeras de entrada , que brigaria com a R8. Pode parecer que são antigas em recursos em relação a R8, mas ela sempre tem ressalvas que a A7iii e a7c não tem. Sobre a A7cii e a7cr em barateamento, ainda tem o fato da ausência do obturador Full mecânico limitar a 1/4000 e ter artefatos em hss acima de 1/1250
01:47 why I watch these videos
Did Jordan survive the T-Rex attack????
I am infuriated! I have been looking for a decent long lens for my fujis, but the fuji lens are way more than I wanted to spend. So therefore, I was saving money. Now I see this which seems workable---although not anything special---which got me to searching for it. It is listing at ¥106000 at MAP camera in Tokyo where I live, so I am being tempted. Strongly temped to spend money. If I should buy it, I will blame you guys. Good thing is that you pointed out some weaknesses which will give me pause.
The canundrum of watching UA-cam reviews, you can find cheaper things but you will still spend the money
Have you looked at the Tamron 150-500? If I recall correctly the reviews are decent for that lens.
Once I have to add $130 tripod stand to this lens, the pricing point is about the same as Tamron 150-500mm price. Is this lens better in any ways to Tamron?
It's much lighter
No soup for Jordan! haha!
Can I get software to remove green balls?
Seems this should have been an APS-C lens all along. Mediocre on FF but a great option on APS-C.
seems like it needs to be more compared to the 70-300 imo.
Agreed. The 70-300 + 1.4x Teleconverter (105-420) vs the Sigma 100-400 is probably the appropriate comparison.
The Sigma has 2/3 of a stop of light at the long end - but the 70-300 + 1.4x TC has a shorter MFD, a (single) linear motor, and (with TC) 0.5x magnification for better close semi-macro. The two are very price comparable too.
Hopefully we'll see this comparison in the future from this or another channel.
That lens is rather mediocre.
That lens has been out for years (probably around 2018-2019) just not in a Fuji mount. It generaly delivers a decent picture without the huge weight.
The "djungle"-scenes nicely pimped up musically 😄
Good job guys !
4:08 😅😅😅😅😅😅
Will it handle the high megapixel cmos on XT5?
Absolutely. It's a great lens.on high megapixel full frame cameras. The Fujis do push it with that 40mp sensor but it should still do nicely.
My guess is that it will do fine, probably not the greatest, but it will be reasonably sharp for a 40mpx sensor
Should be fine, this sigma has been rebranded as an olympus for m4/3 which has a higher crop and it's well regarded there
@@PrimalShutter The Olympus version is slightly different; the last optical group before the sensor was modified for m4/3, so could well be optimised for smaller sensors, whereas this X-mount Sigma has the exact same optical formula as the Full Frame version.
Having said that I also don't see an issue with this lens' performance on highly pixel-dense sensors, as Sigma wouldn't have released it for X-mount if it wouldn't work well on the latest X-mount cameras.
I use it on my 61mp sony camera. It's fine and have no issues with its sharpness for the price.
This lens is already on BH student discount for only $850 making it even cheaper
i came here to watch the g9m2 footage
How about micro 4/3 mount?
Olympus 100-400 is the sigma rebranded
Correct!
I used the Olympus. I was not overwhelmed.
And the Olympus is way pricier.
What is a noct?
You must be new here
Is it the weight of a Zeiss noctua? Or something
@@clementc7297 it's the weight of a Nikon Z 58mm f/0.95 Noct
We need it for nikon z hahahaha i don't wanna pay for the z one to expensive
Looks like a collar might be available separately…. Not having a collar seems like a strange choice.
By the way skylum's (this video's sponsor) website appears to just be autogenerated AI SEO junk to try and sell luminar neo, trying its best to frame the software as a personal recommendation from the author when in reality it is a direct advertisement for the software.
So if it is AI seo junk then they therefore contribute to the ai content sludge on the modern internet while also trying to sell product but passing it off as totally not financially influenced!! Thanks skylum for sponsoring this episode and also ruining my search results.
sigma is using the old optic lens across all platforms just change the software and the mounts.
I want some cheaper tele-prime lenses from Fujifilm
Great video 👍 these 3rd party lenses never come close to Fuji lenses in terms of image quality but the exception of viltrox and I think they should make a zoom
i have been watching youguys since dpreview and if you are not going to test the the lense useing the latest camera body why should i watch? as an xt5 user and who cares very much about the autofocus proformance?
Simply put, we don't currently have access to the latest Fujifilm bodies right now. The Camera Store has helped us out with Fujifilm bodies so we can continue to test X-Mount glass, but it does mean we'll sometime need to use older bodies.
- Jordan
@@PetaPixel@PetaPixel I'm sorry if I sound harsh. maybe I am nostalgic but I used to remember you guys specifically going out of your way to get your hands on an xt5 just so you can test the sharpness of the lense using 40mp. and "many of you still use 20mp sensor" just sounds like a bad excuse. if you don't have access to one we can all understand
@@djstuc nothing man, i completely understand. better some review than no review🤗
As an X-T3 user, I really appreciate the review with an X-T3 rather than a new body that I don’t have and can’t afford.
I've used the version for Sony FE mount on an A7R IV. 61mp, works really very well. Decent a/f. The limitation will be the a/f in the X-T5.
He didnt mention if this lens has image stabilization or not!!!
3:00
😉
I so did!!! 😊
Looks like there is already scratches on the barrel
Sigma is getting serious about Fuji 😮
I got it for 650$
The video autofocus with Tamron and Sigma lens is absolutely horrendous, if someone is doing wildlife video don't consider this, for some reason only Fuji lenses do well in video stabilization.
punished accordingly for the overexposure but who's been punished for the audio on that same clip? ;)
Ok, one day you will force me to look up what a noct is
it's a massive 58mm f0,95 manual lens for Nikon Z costing 8k and weighting 2 kg :)
It's exactly as said below. A lens which is exactly 2kg and has become our defacto measurement.
Canon left the house again 😂
So, you’re selling Luminar now…
a 10 min video, but no information about stabilization in photo or video 😢
So you didn't watch the video then.
just pay for the original Fuji 100-300mm. That lens is way better.
You didn't mention the lack of an aperture ring. Deal breaker
You don't often get aperture rings on telephotos with variable max apertures. I see the appeal but it's very rare. Certainly on fixed aperture lenses I like having a ring.
@@niccollsvideo the fuji telephotos have them.
I enjoyed my Sigma 100-400 for my Sony but I may have gotten a bad copy or maybe the UPS guy threw it into the back of the truck because it would focus ok but when I really needed it wouldn’t hit the broad side of a barn even on my a9 or a1.. maybe I should try another version. A good Sony release would be the 100-400 GM mark II.. it was released with the original a9 in November of 2016
400mm are ideal for... wildlife
wildlife are ... fast moving subjects
= a fast cam would be perfect
= H2s would have been the prefered choice and not a 3 Gen. back camera.
If I choose fuji for wildlife - than I will be doing this because other stacked sensor!
Now we wait for m43 version. Olympus 100-400mm is basically a rebranded previous DSLR version of this Sigma lens, so why we couldn't get this one for OM-1. Olympus 100-400mm does not benefit from SH2 50fps nor Sync-IS features so lack of these functionalities on the new Sigma wouldn't be a major problem. Of course mark II of Olympus 100-400mm based on this new Sigma that would Sync with IBIS and support SH2 50fps would be awsome, but at that point who cares? Without such a lens I wonder if I should not ditch OM-1. For wildlife 20MPix, 20fps C-AF, and UNSync-IS is nothing to write home about. 600mm f8 FF equivalent Olympus lens that is optically great but not stellar FOR $3000!!! of 300-1000mm f9-11 FF equivalent lens that is optically very good but not great for $7500!!! $#^%#^&#&!!! to use it with 20Mpix body is not a reasonable option for anyone except for OM-System ambassador. Regular wildlife users of OM-1 needs a reasonabluy priced zoom lens with very good optical quality (not neccesarily great) that let them benefit from OM-1 two key unique OM-1's wildlife-related assets: great IS and super fast drive modes.
Fuji is such a ripoff lol FF prices for crop sensors drawbacks
sigma keeps pushing their garbage to x mount...