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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Sigma 50-100 and 85mm not working again on build 7.2

Alexander_Klose

Alexander_Klose

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I just updated to firmware 7.2 and had big hopes that the Sigma Art 50-100 and 85mm Art work again.
Sad but I can not get them to focus and to change the aputure on the sidehandle because its N/A.

Does anyone know if there is a fix coming or which firmware was stable with these two lenses? i run firmware 2.1 on the sigmas because I got them like that.
I went back to Version 7.0.4 on the Helium but it won´t work. Is there a way to downgrade the glass?


Thanks so much.
 
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Hi Alexander,

Same boat. I swear I had both iris & AF control working at one point, albeit some time ago, on the 18-35 & the 50-100 no probs, (maybe on Epic Dragon?).

Would be fab to get this working again as their fab performance lenses but I've seen people have been complaining here on RU about this issue for some time now so I'm sure it's no easy fix.

The old fix of: taking the lens on & off again, doesn't work any more either I've noticed!

: (

Craig Alexander Lees
UK
 
Oh man thanks for the response.

Just updated to firmware the new release for Helium. 50-100 Art and 85 Art are still not working with Sigmas 2.1 firmware.
Please RED fix that issue. The 85mm Art is really great in combination of foolcontrol and the Sidehandle but useless when its not recognised by the Brains firmware.
 
On the RED website it does say that the 50-100 is supported, but unfortunately I'm not able to use it as well. Hope they will fix it soon.
 
Same boat here with the 50-100 EF Mount. Have to remount it a few times before the camera sees it and sometimes I have to restart the camera.
 
I have worked all day today with the 50-100 EF, on a Scarlet-W. Perfect behaviour. I have switched more then 15 times with the 18-35, and communication was flawless

7.1.0.1 on Red, but I can't say about the lens firmware. I have never upgraded it though.
 
Bérenger Brillante said:
I have worked all day today with the 50-100 EF, on a Scarlet-W. Perfect behaviour. I have switched more then 15 times with the 18-35, and communication was flawless

7.1.0.1 on Red, but I can't say about the lens firmware. I have never upgraded it though.
Click to expand...

Thanks for the reply. If you have the posibillity to mount the lens on a canon camera or with the Sigma dock you can see the firmware in the sigma optimizer software or in canons menu.
Would be great to know at least which version of the firmware works because I contacted sigma about the issue and they told me that they can downgrade the firmware If I send the lenses in. Will cost me 70euro (German Support) for the 85mm and 50-100 but at least the glass works again. I just don´t know which version of the olf firmwares would be the goto one to make it work again.

They also told me that they didn´t know about the issues and have never heard of these problems. The thing is that they not guaranty that the ART photolenses work on cinemacameras. only on DSLRs.

Thanks for your messages. I will forward a link to the thread and all necessary information to sigma and hope that they will fix this.

It would also be great If RED can check this problem and maybe find a fix for the next firmware.
 
Hey everyone,
a little update on the 50-100 Art is out. Sigma released a new firmware which makes it kind of work again.
The Iris and fucus are controllable. The EF mout is not recognising the lens every time I attached it but it works if its recognised.

Did someone tried the 14mm 1.4, the 14-24 or the 135mm art on the EF mount yet? Would be great to know if they work before buying one.
 
Alexander_Klose said:
Hey everyone,
a little update on the 50-100 Art is out. Sigma released a new firmware which makes it kind of work again.
The Iris and fucus are controllable. The EF mout is not recognising the lens every time I attached it but it works if its recognised.

Did someone tried the 14mm 1.4, the 14-24 or the 135mm art on the EF mount yet? Would be great to know if they work before buying one.
Click to expand...

I have a 14-24 and a variety of other Sigma art lenses I can test out on 7.2 on my Gemini.
 
20190227_221633_LCD Top.png


20190227_221753_LCD Top.png


14-24mm seems to work fine and all data is read by camera as expected. Gemini DSMC2 on firmware 7.2.0. Smooth focusing with DSMC2 side handle.
 
Can Confirm, Just updated to 7.2 while my Sigma reps were upgrading our lens firmware and sure enough the 50-100MM is NOT working. No aperture or focus control.
 
Sigma 20mm art not working ef mount

Sigma 20mm art not working ef mount

Hi guys I have the problem with sigma 20mm art. Not recognized by red dsmc2 ef mount. I am sure i was using it like year ago with older camera firmware. Dont know how to fix it. Tryed to lens firmware update. Not working
 
I had to sell my Sigma lens over this issue, kinda sucks since they are so nice. I went to Tamrons and they still have the issue. Needs to be fixed asap really. Should be at the top of the list I would think since so many users use DSLR based glass.
 
It's been ten years since Red first released the Digital Still Motion Camera, the platform they built the company on.

These lenses are considered to be the best internally driven lenses on sale. Internally driven stills lenses were the whole idea behind DSMC. Stills and Motion.

Hell, the 18-35 in the Raven kit is the only lens Red has sold since the Red Pros.

But Red doesn't care enough to make the firmware not break them, or even enough to fix the firmware when it does.
 
Ok,

I am not sure if this will be a solution to everyone, but this seemed to work for my Sigma Art 50-100mm EF lens on my RED Epic-W Helium:

When I mount the Sigma lens onto my camera, I would get no communication between the lens and camera. I then would twist on and twist back the lens onto the mount, but to no avail.

So I decided to HOLD DOWN the RELEASE BUTTON on the lens mount while I twisted the lens into the mount. Once the lens was fully twisted in, I released the RELEASE BUTTON on the lens mount, and slightly twisted the lens counter-clockwise (like as if you were removing the lens from the mount), and the lens would "click" into the mount. All of a sudden, the lens made internal noises and was connected to the camera. I had control of the aperture and everything. This has been working for me so far. I'm not sure if this is the be all end all answer to everyones problem, but I hope it might work for everyone! :)
 
Matthew Rodriguez said:
Ok,

I am not sure if this will be a solution to everyone, but this seemed to work for my Sigma Art 50-100mm EF lens on my RED Epic-W Helium:

When I mount the Sigma lens onto my camera, I would get no communication between the lens and camera. I then would twist on and twist back the lens onto the mount, but to no avail.

So I decided to HOLD DOWN the RELEASE BUTTON on the lens mount while I twisted the lens into the mount. Once the lens was fully twisted in, I released the RELEASE BUTTON on the lens mount, and slightly twisted the lens counter-clockwise (like as if you were removing the lens from the mount), and the lens would "click" into the mount. All of a sudden, the lens made internal noises and was connected to the camera. I had control of the aperture and everything. This has been working for me so far. I'm not sure if this is the be all end all answer to everyones problem, but I hope it might work for everyone! :)
Click to expand...

Thanks for the tip! Will try that if it happens again. But I still think its also a firmware problem and needs improvements to make it work propperly.
 
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