Sigma 85mm f/1.4 DG Art Coming to Photokina [CR3]

[AvTvM]

not interested in f/1.4 and large, expensive lens.

i'd like to get a very compact, optically very good and very affordable Canon EF 85/1.8 STM IS. Mainly for events and small/club concerts and for street/walka out. i prfer tele over wide-angle most of the time for human subjects.

 

[vscd]

not interested in f/1.4 and large, expensive lens.

i'd like to get a very compact, optically very good and very affordable Canon EF 85/1.8 STM IS. Mainly for events and small/club concerts and for street/walka out. i prfer tele over wide-angle most of the time for human subjects.

Sounds like Tamron already build exaclty what you want...

 

[YuengLinger]

not interested in f/1.4 and large, expensive lens.

i'd like to get a very compact, optically very good and very affordable Canon EF 85/1.8 STM IS. Mainly for events and small/club concerts and for street/walka out. i prfer tele over wide-angle most of the time for human subjects.

Ah, a lens for ''the people.''

 

[AvTvM]

not interested in f/1.4 and large, expensive lens.

i'd like to get a very compact, optically very good and very affordable Canon EF 85/1.8 STM IS. Mainly for events and small/club concerts and for street/walka out. i prfer tele over wide-angle most of the time for human subjects.

Sounds like Tamron already build exaclty what you want...

too big, too heavy (700 g), way too expensive (€ 849 where i live!). i am thinking more about an greatly improved EF 85/1.8 .. 400g, 58 filter, plus IS ... € 399 or so

 

[ahsanford]

not interested in f/1.4 and large, expensive lens.

i'd like to get a very compact, optically very good and very affordable Canon EF 85/1.8 STM IS. Mainly for events and small/club concerts and for street/walka out. i prfer tele over wide-angle most of the time for human subjects.

Sounds like Tamron already build exaclty what you want...

too big, too heavy (700 g), way too expensive (€ 849 where i live!). i am thinking more about an greatly improved EF 85/1.8 .. 400g, 58 filter, plus IS ... € 399 or so

I think a number of people want the IS-refresh to occur with the 50mm f/1.4 and 85mm f/1.8 as well. The mystery is how light it may / may not be -- the 24 in the 24/28/35 IS refresh basically maintained the same weight with the update, but the other two got a good 3-4 oz heavier in the process.

- A

 

[[email protected]]

not interested in f/1.4 and large, expensive lens.

i'd like to get a very compact, optically very good and very affordable Canon EF 85/1.8 STM IS. Mainly for events and small/club concerts and for street/walka out. i prfer tele over wide-angle most of the time for human subjects.

Sounds like Tamron already build exaclty what you want...

too big, too heavy (700 g), way too expensive (€ 849 where i live!). i am thinking more about an greatly improved EF 85/1.8 .. 400g, 58 filter, plus IS ... € 399 or so

I'm afraid you can't get the same iq with a smaller, lighter design. Even if the new Canon 85 uses the Blue Goo, that appears to require a front and a back element to contain the stuff. The 35mm was awesome, but it felt like a can of glass in the hand.

I sold mine for the Tamron 35 vc. Not qite as perfect iq, but lighter, cheaper, smaller. Asking for something lighter, cheaper and smaller than Tamrons 85 mm - which I also own - with equivalent iq is probably asking for an unprecedented design innovation.

I would be first to buy, but not holding breath.

 

[vscd]

not interested in f/1.4 and large, expensive lens.

i'd like to get a very compact, optically very good and very affordable Canon EF 85/1.8 STM IS. Mainly for events and small/club concerts and for street/walka out. i prfer tele over wide-angle most of the time for human subjects.

Sounds like Tamron already build exaclty what you want...

too big, too heavy (700 g), way too expensive (€ 849 where i live!). i am thinking more about an greatly improved EF 85/1.8 .. 400g, 58 filter, plus IS ... € 399 or so

So you want a better lens with IS at the same weight/size and with nearly the old price? Ok. I want a 24-120 f1.4 IS for 299€.

 

[AlmostDecent]

The key concern in this thread is (appropriately) autofocus consistency performance. That's a big deal with a lens like this.

I'm not going to chime in either pro/con Sigma as I want to go into the review of this lens (when it arrives) with as much objectivity as possible.

I just want to share this anecdote: I obviously get a lot of feedback from photographers around the world via my reviews. I get very few complaints from Nikon shooters regarding autofocus accuracy issues on Sigma lenses, but a lot of complaints from Canon shooters. While I get fewer autofocus complaints from Tamron shooters in general, I would say that more of those are from Nikon shooters compared to Canon shooters. As just a general observation I would say that Sigma has got Nikon's focus algorithms down better than Canons, and the opposite may be true from Tamron.

Not having a Sigma lens, I cannot comment, but I will say that I have stellar performance of the Tamron 35 f/1.8 on a Nikon D750. I did AF finetune it (ruler method), but it was a fairly painless process, and solved the slight front-focus it displayed.

 

[AvTvM]

So you want a better lens with IS at the same weight/size and with nearly the old price? Ok. I want a 24-120 f1.4 IS for 299€.

Yes, I would buy an up-to-date, compact and light Canon EF 85/1.8 IS STM lens with
* up-to-date image quality
* up-to- date AF-system
* up-to-date IS (4 stops+) at an
* up-to-date price.

USD/€ 399 may be a bit aggressive, so fine, lets say € 499
50% higher price than old EF 85/1.8 and 2016 lens design + glass should allow for a significantly better lens, no?

Additionally:
* I would not mind a plastic mount and I would not need a focus ring and manual focus gear.
* Weather-sealing however would be really appreciated. 2 Euro extra cost for 2 O-rings and a rubber gasket should be included in the 499 price tag. As well as 99 cent production cost for the lens hood. 8)

 

[Ozarker]

So what if the lens focuses perfectly each time, but it just happens to be back focusing. Or front focusing each time consistently. This is what micro adjustments fix. Micro adjustments are not to fix bad focusing lenses, but to fine tune them to your particular camera. If you want to avoid this, I suggest you never use a fast aperture. Just saying.. :-/

Yes, but Sigma has a history of inconsistently focusing lenses that you can't solve with AFMA / their USB dock.

I always use the TDP example to show this with the 50 Art:
http://www.the-digital-picture.com/Reviews/Sigma-50mm-f-1.4-DG-HSM-Art-Lens.aspx
(pan halfway down until you see the butterfly -- read and mouseover the digits)

And CR's reviewer Dustin Abbott presented a basic head to head hit rate effort while shooting both the 35L II and the 35 Art wide open, and the results were telling:
http://dustinabbott.net/2016/01/sigma-35mm-f1-4-dg-hsm-art-review/
(1/3 of the way down with the school pictures: 92% for the 35L II and 64% for the Sigma)

And it wasn't like the Servo AF incorrectly selected the AF points. Again, from Dustin's review:

"Reviewing the data in Lightroom via a plugin called “Show Focus Points” tells me that I was using AF Servo focus and that focus was locked with the center point square in the middle boy’s face…and yet the lens is actually focused on the far wall. By contrast the Canon 35L II shots in the same situation were all accurately focused."

I don't say this to smear/troll/mock/doubt Sigma -- I say this to spur them on to fix their designs and fulfill the promise of their fine optics.

- A

Instead, please go to Canon and tell them not to make it harder for 3rd parties like Sigma to manufacture lenses with spot on AF. Sony is already letting Sigma use their af technology. I hope Canon gets out of their crappy monopoly attitude and do the same.

And I should also mention, I have 35 and 50 art and both nail focus EVERY SINGLE TIME. Just try the art before purchase, that's it. Hope that's not too hard lol

Sony lets Sigma use their af tech because Sony can't make a decent lens themselves. Not so with Canon.

Canon makes great lenses. No reason to share the sales with 3rd party manufacturers.

Is there even an adaptor for a Sony lens to Canon camera? I just looked at B&H and could not find one. maybe there is one, but I couldn't find it. There are many for Canon lens to Sony camera.

 

[Infraspace]

So what if the lens focuses perfectly each time, but it just happens to be back focusing. Or front focusing each time consistently. This is what micro adjustments fix. Micro adjustments are not to fix bad focusing lenses, but to fine tune them to your particular camera. If you want to avoid this, I suggest you never use a fast aperture. Just saying.. :-/

Yes, but Sigma has a history of inconsistently focusing lenses that you can't solve with AFMA / their USB dock.

I always use the TDP example to show this with the 50 Art:
http://www.the-digital-picture.com/Reviews/Sigma-50mm-f-1.4-DG-HSM-Art-Lens.aspx
(pan halfway down until you see the butterfly -- read and mouseover the digits)

And CR's reviewer Dustin Abbott presented a basic head to head hit rate effort while shooting both the 35L II and the 35 Art wide open, and the results were telling:
http://dustinabbott.net/2016/01/sigma-35mm-f1-4-dg-hsm-art-review/
(1/3 of the way down with the school pictures: 92% for the 35L II and 64% for the Sigma)

And it wasn't like the Servo AF incorrectly selected the AF points. Again, from Dustin's review:

"Reviewing the data in Lightroom via a plugin called “Show Focus Points” tells me that I was using AF Servo focus and that focus was locked with the center point square in the middle boy’s face…and yet the lens is actually focused on the far wall. By contrast the Canon 35L II shots in the same situation were all accurately focused."

I don't say this to smear/troll/mock/doubt Sigma -- I say this to spur them on to fix their designs and fulfill the promise of their fine optics.

- A

Instead, please go to Canon and tell them not to make it harder for 3rd parties like Sigma to manufacture lenses with spot on AF. Sony is already letting Sigma use their af technology. I hope Canon gets out of their crappy monopoly attitude and do the same.

And I should also mention, I have 35 and 50 art and both nail focus EVERY SINGLE TIME. Just try the art before purchase, that's it. Hope that's not too hard lol

Sony lets Sigma use their af tech because Sony can't make a decent lens themselves. Not so with Canon.

Canon makes great lenses. No reason to share the sales with 3rd party manufacturers.

Is there even an adaptor for a Sony lens to Canon camera? I just looked at B&H and could not find one. maybe there is one, but I couldn't find it. There are many for Canon lens to Sony camera.

Not that im a fan of Sony or anything. But adapting a Sony lens (Talking about E-mount) to a Canon EF camera is impossible without destroying the IQ. This is because of the focusing plane of the lens would not match with the canon sensor. So then the lens would focus in front of the sensor. To fix this you would need an extra glass element in the adapter. This is the same reason you cant adapt an FD lens to a EF camera. While you can adapt anything to a MFT sensor because the distance from the back of the lens to the sensor is so small, and you can add distance, but not remove it. Unless you want to snap the mirror on your precious camera that is.

 

[Ozarker]

So what if the lens focuses perfectly each time, but it just happens to be back focusing. Or front focusing each time consistently. This is what micro adjustments fix. Micro adjustments are not to fix bad focusing lenses, but to fine tune them to your particular camera. If you want to avoid this, I suggest you never use a fast aperture. Just saying.. :-/

Yes, but Sigma has a history of inconsistently focusing lenses that you can't solve with AFMA / their USB dock.

I always use the TDP example to show this with the 50 Art:
http://www.the-digital-picture.com/Reviews/Sigma-50mm-f-1.4-DG-HSM-Art-Lens.aspx
(pan halfway down until you see the butterfly -- read and mouseover the digits)

And CR's reviewer Dustin Abbott presented a basic head to head hit rate effort while shooting both the 35L II and the 35 Art wide open, and the results were telling:
http://dustinabbott.net/2016/01/sigma-35mm-f1-4-dg-hsm-art-review/
(1/3 of the way down with the school pictures: 92% for the 35L II and 64% for the Sigma)

And it wasn't like the Servo AF incorrectly selected the AF points. Again, from Dustin's review:

"Reviewing the data in Lightroom via a plugin called “Show Focus Points” tells me that I was using AF Servo focus and that focus was locked with the center point square in the middle boy’s face…and yet the lens is actually focused on the far wall. By contrast the Canon 35L II shots in the same situation were all accurately focused."

I don't say this to smear/troll/mock/doubt Sigma -- I say this to spur them on to fix their designs and fulfill the promise of their fine optics.

- A

Instead, please go to Canon and tell them not to make it harder for 3rd parties like Sigma to manufacture lenses with spot on AF. Sony is already letting Sigma use their af technology. I hope Canon gets out of their crappy monopoly attitude and do the same.

And I should also mention, I have 35 and 50 art and both nail focus EVERY SINGLE TIME. Just try the art before purchase, that's it. Hope that's not too hard lol

Sony lets Sigma use their af tech because Sony can't make a decent lens themselves. Not so with Canon.

Canon makes great lenses. No reason to share the sales with 3rd party manufacturers. In fact it would be stupid to do so. The $$$ is in the lenses, not the bodies. This isn't a "crappy monopoly attitude". It is protecting their share of the market. Nobody has a monopoly in the camera world.

Is there even an adaptor for a Sony lens to Canon camera? I just looked at B&H and could not find one. maybe there is one, but I couldn't find it. There are many for Canon lens to Sony camera.

Not that im a fan of Sony or anything. But adapting a Sony lens (Talking about E-mount) to a Canon EF camera is impossible without destroying the IQ. This is because of the focusing plane of the lens would not match with the canon sensor. So then the lens would focus in front of the sensor. To fix this you would need an extra glass element in the adapter. This is the same reason you cant adapt an FD lens to a EF camera. While you can adapt anything to a MFT sensor because the distance from the back of the lens to the sensor is so small, and you can add distance, but not remove it. Unless you want to snap the mirror on your precious camera that is.

Not that I'm a fan of Sony or anything. But adapting a Sony lens (Talking about E-mount) to a Canon EF camera is impossible without destroying the IQ. This is because of the focusing plane of the lens would not match with the canon sensor. So then the lens would focus in front of the sensor. To fix this you would need an extra glass element in the adapter.

There are Sony E mount to Canon EF lens adaptors.

http://www.bhphotovideo.com/c/product/839141-REG/vello_la_nex_cef_vello_lens_mount_adapter.html

This is the same reason you cant adapt an FD lens to a EF camera.

Ahhh, and I did see FD to EF adaptors. Yup.
http://www.bhphotovideo.com/c/product/742933-REG/Vello_LA_CEF_CFD_Canon_EOS_To_Canon.html

http://www.bhphotovideo.com/c/product/995122-REG/fotodiox_fd_eos_p_pro_canon_eos_camera.html

To fix this you would need an extra glass element in the adapter.

And they do have focus correcting lenses built in.

Doing the same for crappy Sony lenses shouldn't be a problem. It's just that there is no market for Sony to Canon adaptors. Why? Sony makes poor lenses.

Why have a Sony camera when one must adapt somebody else's lens to it? And you are right, the IQ can't be as good, but it must be better than the native Sony lens or there would not be a reason to manufacture the adaptors.

So there is no need to snap the mirror on my precious camera.

 

[Refurb7]

not interested in f/1.4 and large, expensive lens.

i'd like to get a very compact, optically very good and very affordable Canon EF 85/1.8 STM IS. Mainly for events and small/club concerts and for street/walka out. i prfer tele over wide-angle most of the time for human subjects.

Sounds like Tamron already build exaclty what you want...

Tamron built the lens I want. I'd love a Canon EF 85/1.8 STM IS, but I can't wait for one. The Tamron is not compact, but it's not too big either.

 

[Infraspace]

So what if the lens focuses perfectly each time, but it just happens to be back focusing. Or front focusing each time consistently. This is what micro adjustments fix. Micro adjustments are not to fix bad focusing lenses, but to fine tune them to your particular camera. If you want to avoid this, I suggest you never use a fast aperture. Just saying.. :-/

Yes, but Sigma has a history of inconsistently focusing lenses that you can't solve with AFMA / their USB dock.

I always use the TDP example to show this with the 50 Art:
http://www.the-digital-picture.com/Reviews/Sigma-50mm-f-1.4-DG-HSM-Art-Lens.aspx
(pan halfway down until you see the butterfly -- read and mouseover the digits)

And CR's reviewer Dustin Abbott presented a basic head to head hit rate effort while shooting both the 35L II and the 35 Art wide open, and the results were telling:
http://dustinabbott.net/2016/01/sigma-35mm-f1-4-dg-hsm-art-review/
(1/3 of the way down with the school pictures: 92% for the 35L II and 64% for the Sigma)

And it wasn't like the Servo AF incorrectly selected the AF points. Again, from Dustin's review:

"Reviewing the data in Lightroom via a plugin called “Show Focus Points” tells me that I was using AF Servo focus and that focus was locked with the center point square in the middle boy’s face…and yet the lens is actually focused on the far wall. By contrast the Canon 35L II shots in the same situation were all accurately focused."

I don't say this to smear/troll/mock/doubt Sigma -- I say this to spur them on to fix their designs and fulfill the promise of their fine optics.

- A

Instead, please go to Canon and tell them not to make it harder for 3rd parties like Sigma to manufacture lenses with spot on AF. Sony is already letting Sigma use their af technology. I hope Canon gets out of their crappy monopoly attitude and do the same.

And I should also mention, I have 35 and 50 art and both nail focus EVERY SINGLE TIME. Just try the art before purchase, that's it. Hope that's not too hard lol

Sony lets Sigma use their af tech because Sony can't make a decent lens themselves. Not so with Canon.

Canon makes great lenses. No reason to share the sales with 3rd party manufacturers. In fact it would be stupid to do so. The $$$ is in the lenses, not the bodies. This isn't a "crappy monopoly attitude". It is protecting their share of the market. Nobody has a monopoly in the camera world.

Is there even an adaptor for a Sony lens to Canon camera? I just looked at B&H and could not find one. maybe there is one, but I couldn't find it. There are many for Canon lens to Sony camera.

Not that im a fan of Sony or anything. But adapting a Sony lens (Talking about E-mount) to a Canon EF camera is impossible without destroying the IQ. This is because of the focusing plane of the lens would not match with the canon sensor. So then the lens would focus in front of the sensor. To fix this you would need an extra glass element in the adapter. This is the same reason you cant adapt an FD lens to a EF camera. While you can adapt anything to a MFT sensor because the distance from the back of the lens to the sensor is so small, and you can add distance, but not remove it. Unless you want to snap the mirror on your precious camera that is.

Not that I'm a fan of Sony or anything. But adapting a Sony lens (Talking about E-mount) to a Canon EF camera is impossible without destroying the IQ. This is because of the focusing plane of the lens would not match with the canon sensor. So then the lens would focus in front of the sensor. To fix this you would need an extra glass element in the adapter.

There are Sony E mount to Canon EF lens adaptors.

http://www.bhphotovideo.com/c/product/839141-REG/vello_la_nex_cef_vello_lens_mount_adapter.html

This is the same reason you cant adapt an FD lens to a EF camera.

Ahhh, and I did see FD to EF adaptors. Yup.
http://www.bhphotovideo.com/c/product/742933-REG/Vello_LA_CEF_CFD_Canon_EOS_To_Canon.html

http://www.bhphotovideo.com/c/product/995122-REG/fotodiox_fd_eos_p_pro_canon_eos_camera.html

To fix this you would need an extra glass element in the adapter.

And they do have focus correcting lenses built in.

Doing the same for crappy Sony lenses shouldn't be a problem. It's just that there is no market for Sony to Canon adaptors. Why? Sony makes poor lenses.

Why have a Sony camera when one must adapt somebody else's lens to it? And you are right, the IQ can't be as good, but it must be better than the native Sony lens or there would not be a reason to manufacture the adaptors.

So there is no need to snap the mirror on my precious camera.

The E-mount adapter is from EF to E-Mount, so nothing new about that one. And FD adapters make your lenses soft. Ive tried out multiple FD adapters on multiple cameras, and they all made the lenses so soft that it didnt look like they focused unless you stopped it down which kind of defeats the purpose of having a cheap but fast prime. So yea, adapting a lens to DSLR mount system is hard, but adapting it to a mirrorless system is quite easy because of the focal plane of the lens.
For photography i agree with you. Why go with a different system if youre going to shoot Canon glass. But some people want to try something different. And for poeple like me, whos into the film side of thing jumping ship from Canon is the only good thing to do. But I still want EF glass, so i adapt my lenses.

 

[TWI by Dustin Abbott]

not interested in f/1.4 and large, expensive lens.

i'd like to get a very compact, optically very good and very affordable Canon EF 85/1.8 STM IS. Mainly for events and small/club concerts and for street/walka out. i prfer tele over wide-angle most of the time for human subjects.

Sounds like Tamron already build exaclty what you want...

Tamron built the lens I want. I'd love a Canon EF 85/1.8 STM IS, but I can't wait for one. The Tamron is not compact, but it's not too big either.

I've quickly come to LOVE the Tamron. It is a nice size, focuses quickly and accurately, and the image quality really is quite a special combo of sharpness and bokeh. Here's a small gallery of images I've shared from the lens thus far on Flickr: https://www.flickr.com/photos/thousandwordimages/albums/72157667746123976

 

[captainkanji]

An 85 is next on my list of primes. I'm waiting to see how the Art performs. I wonder if these 85s will give me the same warm feeling inside as my 135 does?

 

[ExodistPhotography]

not interested in f/1.4 and large, expensive lens.

i'd like to get a very compact, optically very good and very affordable Canon EF 85/1.8 STM IS. Mainly for events and small/club concerts and for street/walka out. i prfer tele over wide-angle most of the time for human subjects.

Sounds like Tamron already build exaclty what you want...

Tamron built the lens I want. I'd love a Canon EF 85/1.8 STM IS, but I can't wait for one. The Tamron is not compact, but it's not too big either.

I've quickly come to LOVE the Tamron. It is a nice size, focuses quickly and accurately, and the image quality really is quite a special combo of sharpness and bokeh. Here's a small gallery of images I've shared from the lens thus far on Flickr: https://www.flickr.com/photos/thousandwordimages/albums/72157667746123976

Hey Dustin, I know we briefly talked on your review video for the Tamron 85mm. But even looking at your flickr page, those images just do not look sharp at all. IDK, perhaps my standards are higher.. :-/

 

[Zanken]

So you want a better lens with IS at the same weight/size and with nearly the old price? Ok. I want a 24-120 f1.4 IS for 299€.

Yes, I would buy an up-to-date, compact and light Canon EF 85/1.8 IS STM lens with
* up-to-date image quality
* up-to- date AF-system
* up-to-date IS (4 stops+) at an
* up-to-date price.

USD/€ 399 may be a bit aggressive, so fine, lets say € 499
50% higher price than old EF 85/1.8 and 2016 lens design + glass should allow for a significantly better lens, no?

Additionally:
* I would not mind a plastic mount and I would not need a focus ring and manual focus gear.
* Weather-sealing however would be really appreciated. 2 Euro extra cost for 2 O-rings and a rubber gasket should be included in the 499 price tag. As well as 99 cent production cost for the lens hood. 8)

The closest thing I can think of to what you're asking for is like the 24/28/35mm IS lenses. These little things are great, but only the 35mm is f2.0. I get the feeling that if you pushed a design like that for an 85mm at f2.0 there would be some compromises to IQ (CA/vignetting/distortion). There is a reason Tamron's f1.8 lenses are pretty chunky.

 

[AvTvM]

Yes, I would buy an up-to-date, compact and light Canon EF 85/1.8 IS STM lens with
* up-to-date image quality
* up-to- date AF-system
* up-to-date IS (4 stops+) at an
* up-to-date price.
USD/€ 399 may be a bit aggressive, so fine, lets say € 499
50% higher price than old EF 85/1.8 and 2016 lens design + glass should allow for a significantly better lens, no?
Additionally:
* I would not mind a plastic mount and I would not need a focus ring and manual focus gear.
* Weather-sealing however would be really appreciated. 2 Euro extra cost for 2 O-rings and a rubber gasket should be included in the 499 price tag. As well as 99 cent production cost for the lens hood. 8)

The closest thing I can think of to what you're asking for is like the 24/28/35mm IS lenses. These little things are great, but only the 35mm is f2.0. I get the feeling that if you pushed a design like that for an 85mm at f2.0 there would be some compromises to IQ (CA/vignetting/distortion). There is a reason Tamron's f1.8 lenses are pretty chunky.

Closest thing I can think of is Nikon 85/1.8. Excellent lens, only 350g and optically far superior to old Canon 85/1.8. Street price about 25% / € 100 higher than Canon.

In terms of form factor & weight (but not in price!) my ideal short tele prime would be like along the lines of (old) Pentax smc 77/1.8 LTD ...
http://static.lensbuyingguide.com/img/800/1595.jpg
Adding up to date optical design, STM-AF and IS would add a bit of size and weight, but it could still come in at 300 grams. Leaving focus gear and focus ring off, would save cost, complexity and weight and make weather-sealing even more simple.

 

[GuyF]

From the Sigma UK site http://www.sigma-imaging-uk.com/index.php?route=information/news&news_id=196

2016-05-27 00:00:00
Canon EOS-1D X Mark II Users

Thank you for purchasing and using our products.

We have found that some SIGMA interchangeable lenses for CANON are not fully compatible with
CANON EOS-1DX Mark II, which was released on April 28th.
When certain lenses are attached to this camera, exposure of the image may not be accurate.
We are sorry for the inconvenience, and we will make a further announcement on our website
when specific details are finalized.
In addition, please also refer to the below usage notice related to this announcement.

[Phenomenon]
When the lenses listed below are used and either “Evaluative Metering” or
“Center-weighted Average Metering” is selected in Metering Mode of the camera,
the image could show some underexposure.

[Products concerned]
SIGMA 20mm F1.4 DG HSM | Art
SIGMA 35mm F1.4 DG HSM | Art
SIGMA 85mm F1.4 EX DG HSM

We are currently working on the firmware update for respective lenses, and the release dates will be announced later.

Usage Notice for customers who are using EOS mount SIGMA lenses on a CANON EOS-1DX Mark II
・ MO (Manual Override) function is unavailable with this camera (Full-time Manual function can be offered).
・ When using a SIGMA interchangeable lens for EOS, setting the corrections to [Disable] is recommended,
as “Lens Correction” functions of the camera, such as Peripheral illumination correction, Chromatic aberration correction,
Diffraction correction and Distortion correction, are not supported. If those functions are activated,
the performance of lenses may not be accurate. This is not only for EOS-1DX Mark II, but also other camera bodies.



I'm sure I read that the current 85mm can't be used with the USB dock so owners may have to return it to Sigma for the firmware to get updated. Might just sell mine in anticipation of the mythical Art version.