Sigma MC-11 firmware 1.08

I updated mine and did some tests with the Tamron 24-70/2.8. Seems OK. I was running 1.06, previously. I had seen problems with the Tamron giving up on AF or not being able to focus at 24mm and infinity, but I had seen those even with 1.05, and they were intermittent anyway.

STM 40 works fine with 1.08, but also worked fine with 1.06 for me.
 
Now it seems to work with Canon lenses with no problem.
That is not how I read Sigmas note, it says that none compatible lenses, meaning non Sigma lenses like Canon lenses, is now working less incompatible :-)

"This firmware update corrects the phenomenon that AF does not operate properly when some lenses that are not compatible with the MC-11 are attached.

This firmware update does not guarantee accurate operation with lenses that are not compatible with the MC-11."

 
So i updated the firmware for my Sigma 150-600 Sport lens in EF mount. The issue i had BEFORE this firmware update was that at close focus at 600mm, the AF will NOT hold focus at all. After the update i STILL have the same issue. Can someone who uses this lens confirm that AFTER installing this firmware version you can use the 150-600 at 600mm at or near close focus in BOTH AFS and AFC? If so, i can only assume i have an issue with either the adapter or the lens.

Thanks for your help

Hubbie
 
I also have to say that I'm impressed with Sigma making this effort. As others have pointed out, they have never promoted the MC-11 for anything but specific models of their own lenses... so this strikes me as more of a goodwill gesture. And yet, they were much more responsive to this issue than Sony has been to the star eater problem.

On the slightly cynical side, I wouldn't be surprised if some "non-compatible" Sigma EF lenses were also exhibiting the issue. I could definitely see that Sigma would want the good publicity of their own lenses working on their adapter, even if they don't support native features.
 
So are you saying i should try a Sigma 150-600 Sports version in Sigma mount?
 
So are you saying i should try a Sigma 150-600 Sports version in Sigma mount?
No. Well, maybe you should, but I'm not saying it.

The 150-600 Sports is a compatible lens. There's another thread on it where someone had some very good results with it on an A9, and getting 15 FPS. (https://www.dpreview.com/forums/thread/4183046)

Sigma mount vs. EF mount makes no difference in lens electronic protocol, AFAIK.

My comment was that there are probably non-compatible (mostly non-Sport and non-ART) Sigma EF lenses that probably had the same problems as Canon lenses on the MC-11, and that Sigma would likely have wanted to address that issue, if it wasn't too much effort.
 
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Now it seems to work with Canon lenses with no problem.
That is not how I read Sigmas note, it says that none compatible lenses, meaning non Sigma lenses like Canon lenses, is now working less incompatible :-)

"This firmware update corrects the phenomenon that AF does not operate properly when some lenses that are not compatible with the MC-11 are attached.

This firmware update does not guarantee accurate operation with lenses that are not compatible with the MC-11."

https://www.sigma-photo.co.jp/english/new/new_topic.php?id=583
 
So i updated the firmware for my Sigma 150-600 Sport lens in EF mount. The issue i had BEFORE this firmware update was that at close focus at 600mm, the AF will NOT hold focus at all. After the update i STILL have the same issue. Can someone who uses this lens confirm that AFTER installing this firmware version you can use the 150-600 at 600mm at or near close focus in BOTH AFS and AFC? If so, i can only assume i have an issue with either the adapter or the lens.

Thanks for your help

Hubbie
I can´t speak for the Sigma 150-600 S but I have the 100-400 C and the experience is much better with the Metabones IV (newest FW) for that lens on my A7RII.

I updated my MC-11 but I haven´t used it yet. On the MC-11, my 100-400 struggled to hold focus at the longest FL as you describe with your lens (specially outside the center area).

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So i updated the firmware for my Sigma 150-600 Sport lens in EF mount. The issue i had BEFORE this firmware update was that at close focus at 600mm, the AF will NOT hold focus at all. After the update i STILL have the same issue. Can someone who uses this lens confirm that AFTER installing this firmware version you can use the 150-600 at 600mm at or near close focus in BOTH AFS and AFC? If so, i can only assume i have an issue with either the adapter or the lens.

Thanks for your help

Hubbie
You might try just using the center focus area. I have a Sigma 15mm Fisheye that will only focus on the center point area. That could be because of the fisheye design but worth trying, both in AFs and AFc. Whatever works :-)
 
No same issue on whatever setting I use unfortunately. I made an 11 sec video of the issue right now but no idea how to upload it.
 
Now it seems to work with Canon lenses with no problem.
That is not how I read Sigmas note, it says that none compatible lenses, meaning non Sigma lenses like Canon lenses, is now working less incompatible :-)

"This firmware update corrects the phenomenon that AF does not operate properly when some lenses that are not compatible with the MC-11 are attached.

This firmware update does not guarantee accurate operation with lenses that are not compatible with the MC-11."

https://www.sigma-photo.co.jp/english/new/new_topic.php?id=583
Its probably a business decision not to claim compatibility with Canon lenses, and thereby suffer the cost of dealing with non-compatible claims from a low cost adapter.
I think also that by doing this they take responsibility for the two parts where they have control, their own lenses and the adapter. If there is any software that can be fixed to make it work in the adapter or the lens, then they can do that and issue a new FW. If they would claim responsibility for "third party" lenses from their point of view (meaning Canon and other manufacturers that does lenses in EF mount) then they would have to test with those more officially and keep a list of what works and what doesn't for each lens. And retesting that for every new firmware release. I think the way they do it now is a smart approach even though the text gets a little funny when they say that non compatible lenses now operate properly.
 
So i updated the firmware for my Sigma 150-600 Sport lens in EF mount. The issue i had BEFORE this firmware update was that at close focus at 600mm, the AF will NOT hold focus at all. After the update i STILL have the same issue. Can someone who uses this lens confirm that AFTER installing this firmware version you can use the 150-600 at 600mm at or near close focus in BOTH AFS and AFC? If so, i can only assume i have an issue with either the adapter or the lens.

Thanks for your help

Hubbie
I can´t speak for the Sigma 150-600 S but I have the 100-400 C and the experience is much better with the Metabones IV (newest FW) for that lens on my A7RII.

I updated my MC-11 but I haven´t used it yet. On the MC-11, my 100-400 struggled to hold focus at the longest FL as you describe with your lens (specially outside the center area).
My Canon 100-400L II struggles with either MC-11 or MB4 adapter @400mm, and even failed to move focus ring when it's at the nearest position, so I had to manually rotate ring a bit before it could AF. This issue only happened @400mm but not at 300mm or below FL for example. Not sure if I have a bad copy? Then I tried the lens on my 1D III and surprisingly it has the same issue. I did a search, it appears an issue with old Canon DSLRs with this lens. My older 100-400L mark I didn't have this issue on 1D III. Will wait to confirm if also have this issue when I get 5D IV.
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I also have to say that I'm impressed with Sigma making this effort. As others have pointed out, they have never promoted the MC-11 for anything but specific models of their own lenses... so this strikes me as more of a goodwill gesture.
Yes, it's great.

However I suspect that in part, it may be a spin-off from of the fact that they have their own line of FE lenses in development, and therefore they are working on refining the interface to the camera system.

In fact, it's likely that the MC-11 serves (among other things) as a test bed for them as they iron out any issues before they come to market with native FE offerings. ; )
 
I also have to say that I'm impressed with Sigma making this effort. As others have pointed out, they have never promoted the MC-11 for anything but specific models of their own lenses... so this strikes me as more of a goodwill gesture.
Yes, it's great.

However I suspect that in part, it may be a spin-off from of the fact that they have their own line of FE lenses in development, and therefore they are working on refining the interface to the camera system.

In fact, it's likely that the MC-11 serves (among other things) as a test bed for them as they iron out any issues before they come to market with native FE offerings. ; )

--
Former Canon, Nikon and Pentax user.
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Do you think so? Sigma made E mount lenses long time ago, I have the Sigma 60mm 2.8 that works perfectly on my a7rii, and there is no difference at all between E and FE except coverage.
 
No same issue on whatever setting I use unfortunately. I made an 11 sec video of the issue right now but no idea how to upload it.
I believe you need to first add your movie to an account on Vimeo or Youtube.

Then you can either use the "Insert Video' link that's at the upper right when composing a reply (in which case it should be embedded), or just add the link and let people view it in place on the host site.
 
I also have to say that I'm impressed with Sigma making this effort. As others have pointed out, they have never promoted the MC-11 for anything but specific models of their own lenses... so this strikes me as more of a goodwill gesture.
Yes, it's great.

However I suspect that in part, it may be a spin-off from of the fact that they have their own line of FE lenses in development, and therefore they are working on refining the interface to the camera system.

In fact, it's likely that the MC-11 serves (among other things) as a test bed for them as they iron out any issues before they come to market with native FE offerings. ; )
 
In fact, it's likely that the MC-11 serves (among other things) as a test bed for them as they iron out any issues before they come to market with native FE offerings. ; )
From my memory and Wikipedia seems to support me on it, E-mount is open to other manufacturers if they just sign the NDA. From the Wiki article:

"On 8 February 2011 Sony announced the release of the specifications for the E-mount lens system allowing for third-party lens makers to create lenses for the NEX cameras without having to pay royalties. The mount specifications have been released to registered parties since April 2011. Getting a license for the specifications requires approval by Sony and the signing of a non-disclosure agreement."

Seems similar to how Olympus operates the 43 and M43 mounts. Since I haven't signed the NDA I don't know how much info one gets regarding the AF protocol but in my ears it sounds smartest to help the third party vendors as much as possible since the whole systems reputation hangs on it.
 
In fact, it's likely that the MC-11 serves (among other things) as a test bed for them as they iron out any issues before they come to market with native FE offerings. ; )
From my memory and Wikipedia seems to support me on it, E-mount is open to other manufacturers if they just sign the NDA. From the Wiki article:

"On 8 February 2011 Sony announced the release of the specifications for the E-mount lens system allowing for third-party lens makers to create lenses for the NEX cameras without having to pay royalties. The mount specifications have been released to registered parties since April 2011. Getting a license for the specifications requires approval by Sony and the signing of a non-disclosure agreement."

Seems similar to how Olympus operates the 43 and M43 mounts. Since I haven't signed the NDA I don't know how much info one gets regarding the AF protocol but in my ears it sounds smartest to help the third party vendors as much as possible since the whole systems reputation hangs on it.
Yes. Once a third party manufacturer signs on and gets the specification, they then have to implement a combination of hardware and software to deliver to the spec of every camera model (or as many as possible) in the range, including supporting leading edge and demanding features such as 60 AF operations per second, and 20fps burst.

To do that they need cycles of product development and testing, so that when their E or FE lenses come to market they will work seamlessly and compare favourable with native offerings.

Getting hold of the spec is the start of that process, not the end. : )
 

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