Canon Lens News

Sigma Announces Pricing & Availability for Sigma Mount Converter MC-21

Press Release:

Available in April 2019, the new accessory ensures compatibility of the Sigma lenses in EF and SA mounts with the L-Mount camera systems

Ronkonkoma, NY – March 29, 2019 – Sigma Corporation of America, a leading still photo and cinema lens, camera, flash and accessory manufacturer, today announced pricing and availability for the new Sigma Mount Converter MC-21, offering photographers a wider range of lens options for L-Mount cameras from Sigma, Leica and Panasonic. The Sigma MC-21 will start shipping in April 2019 and will be priced at $169.00 USD for Sigma SA-L mount and $249.00 USD for Canon EF-L mount.

Features
The Sigma Mount Converter MC-21 allows for Sigma’s SA mount and Canon EF mount lenses to be used on L-Mount camera bodies. By attaching MC-21 to a Sigma SA mount or Sigma Canon EF mount lens, it becomes compatible with the L-Mount camera system without compromising usability and image quality. The development of Sigma MC-21 increases the number of interchangeable lenses manufactured by Sigma to be used with the L-Mount systems by 29, offering a total of 40 lens choices, including 11 DG Art primes with native L-mount. The addition of MC-21 to the Sigma accessory lineup will increase the accessibility of the L-Mount system and further Sigma’s role in the strategic L-Mount Alliance alongside Leica and Panasonic.

The full list of compatible lenses and technical specifications can be accessed here and product imagery can be downloaded here.

Pricing
The lower price for the Sigma MC-21 in Sigma SA-L mount reflects the company’s appreciation for the loyal Sigma camera users as the MC-21 in Sigma SA-L mount allows for Sigma SA mount lenses to be used on any L-Mount camera body. Eventually, Sigma will aim to replace its SA mount lenses with the native L-mount versions, but until then, Foveon shooters can rely on the existing offering of Sigma MC-21 at a lower price point to ease the transition to the new system.

Preorder the SIGMA MC-21 at Adorama:

Aug 1, 2017
315
179
Just pre ordered it. Finally my EF lenses will mount on a state of the art video oriented cam. Thank you Sigma.
That adaptor is for Sigma EF lenses. It won't have the firmware to AF properly with the Canon EF lenses you have in your profile. As I understand it, Panasonic's Depth to Defocus AF requires specific data in firmware for each lens used and the MC-21 will only have that data for Sigma lenses. There is a link to the supported lenses in the article.
 
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CanoKnight

EOS 80D
Jul 7, 2014
116
50
That adaptor is for Sigma EF lenses. It won't have the firmware to AF properly with the Canon EF lenses you have in your profile. As I understand it, Panasonic's Depth to Defocus AF requires specific data in firmware for each lens used and the MC-21 will only have that data for Sigma lenses. There is a link to the supported lenses in the article.
You are probably right. I am hoping Sigma will add compatibility over time but at the very least I will have mechanical linkage and be able to use them as MF lenses.
 
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crazyrunner33

EOS RP
Nov 4, 2011
253
77
They haven't been able to(or chose not to) do it for the EF to E mount adapter(but other companies got it to work). It may be worth waiting until Metabones releases one.
 
Aug 1, 2017
315
179
You are probably right. I am hoping Sigma will add compatibility over time but at the very least I will have mechanical linkage and be able to use them as MF lenses.
Just though I'd give you a heads up since I was considering the Panasonic's as well. Let us know how it works out if you go that route. I'd be curious to see if it's workable despite the lack of firmware.
 

Mistral75

EOS T7i
Oct 13, 2013
92
19
There are severe limitations though, as revealed by Sigma themselves:
https://www.sigma-global.com/en/news/2019/03/29/2091/

When used with Panasonic Lumix S1 or S1R:
  • 'Only AF-S works in Autofocus Mode. AF-C cannot be selected.
  • The Auto continuous operation cannot be used during video shooting.
  • Touch AF cannot be used.
  • With lenses incorporating MO (Manual Override), operation in manual mode is possible only after focusing.
  • MF guide is not available.
  • The image stabilization function inside the camera body and the lens cannot be used simultaneously. Please ensure only one of these is selected.
  • The AF Function Button and the Focus Preset Button incorporated on some lenses cannot be used.'
In addition, this adapter 'will not be compatible with Leica’s existing L-Mount cameras.'
 
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bokehmon22

EOS RP
Oct 31, 2016
347
186
There are severe limitations though, as revealed by Sigma themselves:
https://www.sigma-global.com/en/news/2019/03/29/2091/

When used with Panasonic Lumix S1 or S1R:
  • 'Only AF-S works in Autofocus Mode. AF-C cannot be selected.
  • The Auto continuous operation cannot be used during video shooting.
  • Touch AF cannot be used.
  • With lenses incorporating MO (Manual Override), operation in manual mode is possible only after focusing.
  • MF guide is not available.
  • The image stabilization function inside the camera body and the lens cannot be used simultaneously. Please ensure only one of these is selected.
  • The AF Function Button and the Focus Preset Button incorporated on some lenses cannot be used.'
In addition, this adapter 'will not be compatible with Leica’s existing L-Mount cameras.'
Just FYI: Sigma MC-11 didn't work AF-C too but it's now supported. It's going to require alot of FW update
 

bokehmon22

EOS RP
Oct 31, 2016
347
186
Just pre ordered it. Finally my EF lenses will mount on a state of the art video oriented cam. Thank you Sigma.
I don't think Canon lens performance will great. It's definitely YMMV. Sigma Art EF lenses will have 100% compatibility from Sigma CEO interview probably with FW updates.
I don't expect my Canon EF lens 24-70 II 2.8 to have AF-C right out the gate or work as well as native lens.

I have mostly Sigma EF lenses so it works out in my favor. Looking forward to use it with Panasonic S1: IBIS, eyeAF, dual card slot, and cleaner ISO.
 

edoorn

EOS 80D
Apr 1, 2016
176
61
Had the S1 and r in my hands last week. Pretty solid camera. The panasonic guy at the booth pretty much begged me to go over the sigma booth and let them know a general ef adapter would be appreciated; apparently they’ve been getting many many questions from ef lens users.
 
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bokehmon22

EOS RP
Oct 31, 2016
347
186
Had the S1 and r in my hands last week. Pretty solid camera. The panasonic guy at the booth pretty much begged me to go over the sigma booth and let them know a general ef adapter would be appreciated; apparently they’ve been getting many many questions from ef lens users.
Yup. This is the camera I wanted Canon to make. It has features and tech from Sony (IBIS, eyeAF, dual card slot, clean high ISO, 4K) and Canon intangibles (ergonomic, fully touch screen LCD, menu).

If Canon make a camera like this, I would be so happy. I wouldn't expect it for $2500 with free battery grip though. It's nothing less of $3500.
 

crazyrunner33

EOS RP
Nov 4, 2011
253
77
Just FYI: Sigma MC-11 didn't work AF-C too but it's now supported. It's going to require alot of FW update
There's something funky happening with L mount alliance, I would hold off on buying into that system until we see how the protectionism and bullying by Lecia plays out. Sounds like it's something along the lines of "If you make this product work without issues on our bodies, we will force you out of the alliance."
 

tiggy@mac.com

Pentax K-1000
Jan 20, 2014
477
151
Thetford, VT
www.ForestMetrix.com
My reading of the news that Sigma had to retract compatibility claims to older Leica cameras is that Leica and Panasonic recently agreed to Sigma's request to change the data protocols to allow for more information Sigma thought would be important for lenses and adapters (mentioned in Sigma CEO interview recently). This means that previous cameras may not be compatible with some of the new tech, but presumably L-mount cameras from all three going forward would indeed be mutually compatible.

There have been some excited forum posts suggesting that the retraction was an act of protectionism on the part of Leica, but it seems this was just a natural consequence of Leica and Panasonic's flexibility with the standard.

We should know soon enough. If Sigmas MC-21 allows EF lenses on the next Leica camera, that'll be the proof.

As to warning people not to buy into the l-mount system, I'd venture that most of us drooling at Sigma lenses on a Panasonic body weren't too worried about whether our new hardware would be compatible with Leica. I have an S1R on preorder now, and even if I keep that camera for 5 years, I'm willing to bet I'll never consider purchasing a Leica lens or body. I plan to keep most of my Canon system, which is mostly Sigma primes anyway, so this should be pretty easy for me if the MC-21 works well. Or heck if it doesn't.
 

chik0240

I'm New Here
Dec 31, 2016
21
2
Interesting adapter, from the MC11 seems generally ppl single focus acceptably with canon own EF lens, if it single focus ok with native canon lens I would love to give a try for the who know when it's coming foveon X3 camera alongside my old 5D3 for landscape.
 

tiggy@mac.com

Pentax K-1000
Jan 20, 2014
477
151
Thetford, VT
www.ForestMetrix.com
Actually, evidence I was correct surfaced sooner than expected....
https://www.l-rumors.com/new-leica-sl-and-cl-firmware-adds-compatibility-with-the-sigma-and-panasonic-l-mount-lenses-and-adapter/

My reading of the news that Sigma had to retract compatibility claims to older Leica cameras is that Leica and Panasonic recently agreed to Sigma's request to change the data protocols to allow for more information Sigma thought would be important for lenses and adapters (mentioned in Sigma CEO interview recently). This means that previous cameras may not be compatible with some of the new tech, but presumably L-mount cameras from all three going forward would indeed be mutually compatible.

There have been some excited forum posts suggesting that the retraction was an act of protectionism on the part of Leica, but it seems this was just a natural consequence of Leica and Panasonic's flexibility with the standard.

We should know soon enough. If Sigmas MC-21 allows EF lenses on the next Leica camera, that'll be the proof.

As to warning people not to buy into the l-mount system, I'd venture that most of us drooling at Sigma lenses on a Panasonic body weren't too worried about whether our new hardware would be compatible with Leica. I have an S1R on preorder now, and even if I keep that camera for 5 years, I'm willing to bet I'll never consider purchasing a Leica lens or body. I plan to keep most of my Canon system, which is mostly Sigma primes anyway, so this should be pretty easy for me if the MC-21 works well. Or heck if it doesn't.