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Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount
Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount

Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount

$132.76

(869 reviews)

The Sigma MC-11 Mount Converter (Canon EOS EF to Sony Alpha E-Mount) is a revolutionary product designed to allow compatibility between Sigma Canon EF-mount lenses and Sony E-mount mirrorless ILC bodies. Utilizing the latest technology, the MC-11 supports fast and accurate autofocus and will work in conjunction with in-camera stabilization and in-lens stabilization. An LED display on the adapter shows the user if their lens will work in conjunction with the converter. The MC-11 is also updatable with Sigma's (optional) USB docking station. Flocking inside of the converter allows the image to be maintained while the internal electronics record all data from the image for later review.

The Sigma MC-11 Mount Converter (Canon EOS EF to Sony Alpha E-Mount) is a revolutionary product designed to allow compatibility between Sigma Canon EF-mount lenses and Sony E-mount mirrorless ILC bodies. Utilizing the latest technology, the MC-11 supports fast and accurate autofocus and will work in conjunction with in-camera stabilization and in-lens stabilization. An LED display on the adapter shows the user if their lens will work in conjunction with the converter. The MC-11 is also updatable with Sigma's (optional) USB docking station. Flocking inside of the converter allows the image to be maintained while the internal electronics record all data from the image for later review.

Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount

(869 reviews)

The Sigma MC-11 Mount Converter (Canon EOS EF to Sony Alpha E-Mount) is a revolutionary product designed to allow compatibility between Sigma Canon EF-mount lenses and Sony E-mount mirrorless ILC bodies. Utilizing the latest technology, the MC-11 supports fast and accurate autofocus and will work in conjunction with in-camera stabilization and in-lens stabilization. An LED display on the adapter shows the user if their lens will work in conjunction with the converter. The MC-11 is also updatable with Sigma's (optional) USB docking station. Flocking inside of the converter allows the image to be maintained while the internal electronics record all data from the image for later review.

The Sigma MC-11 Mount Converter (Canon EOS EF to Sony Alpha E-Mount) is a revolutionary product designed to allow compatibility between Sigma Canon EF-mount lenses and Sony E-mount mirrorless ILC bodies. Utilizing the latest technology, the MC-11 supports fast and accurate autofocus and will work in conjunction with in-camera stabilization and in-lens stabilization. An LED display on the adapter shows the user if their lens will work in conjunction with the converter. The MC-11 is also updatable with Sigma's (optional) USB docking station. Flocking inside of the converter allows the image to be maintained while the internal electronics record all data from the image for later review.

$132.76 - $449.00

in 51 offers

The lowest price for Sigma MC-11 Mount Converter - Canon EF to Sony E-Mount right now is $132.76 at Camera West, compared across 35 retailers.

The all-time low was $131.86 on 7 May 2026 — today's price is 1% above the lowest ever. This is at or near its all-time low — a good time to buy.

Prices last updated 15 May 2026.

Size:

Sony E-Mount For Canon
Sigma ⇔ Sony E Mount
Sony E-Mount For Sigma

Price comparison

Price data powered by pricesAPI.io

Last updated at 15/05/2026 15:34:42

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64Amazon.com.au

$292.06

Sigma 489E965 Sigma MC-11 Mount Converter for Canon EF to Sony E-Mount Adapters & Converters, Black

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=camerawest.com&sz=64Camera West

$132.76

Sigma MC-11 EF-E Mount Converter 54329799

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$199.66

[ Mint ] Sigma Mc-11 Adapter For Canon Ef To Sony E Mount Jp 17770

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=teds.com.au&sz=64Ted's Cameras

$199.95

Sigma MC-11 Adaptor Canon EF to Sony E Mount | Secondhand

https://www.google.com/s2/favicons?domain=uniquephoto.com&sz=64Unique Photo

$209.55

Used Sigma MC-11 Mount Adapter Canon EF Lenses to Sony E - Excellent

Delivery $34.94

https://www.google.com/s2/favicons?domain=buydirectny.com&sz=64Buy Direct & Save

$232.96

Sigma MC-11 Mount Converter/Lens Adapter for Canon EF

Delivery $34.91

https://www.google.com/s2/favicons?domain=shashinki.com&sz=64ShaShinKi.com

$247.24

[USED] Sigma MC-11 Mount Converter/Lens Adapter (Canon EF-Mount Lenses to Sony E) (S/N: 56385436) (Near New Condition!)

Not eligible for returns

https://www.google.com/s2/favicons?domain=kamerastore.com&sz=64Kamerastore

$280.00

Sigma MC-11 Canon EF - Sony E/FE Mount Converter

Delivery between 22–29 May $59

https://www.google.com/s2/favicons?domain=ebphotovideo.com&sz=64eBphotovideo

$324.94

Enhance Your Photography: Sigma MC-11 Canon to Sony E Mount Converter

Delivery $75.24

https://www.google.com/s2/favicons?domain=discovery-japan.me&sz=64Discovery Japan Mall

$331.22

SIGMA Mount Converter MC-11 For Canon EF-E Canon ⇔ Sony E Mount

Delivery between 21–26 May $38.72

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

Canon 400mm f4 to Sony a7r4a
7 August 2022Owen

originally posted on bhphotovideo.com

I recently found myself in the following situation: My best camera body is a Sony a7r4a but my best long lens is a Canon 400mm f4. For obvious reasons, I was interested in mounting the Canon lens on the Sony body. In hopes of doing this, I purchased the Sigma MC-11 Mount Converter based on its price and reviews.Among the questions that seemed to demand answers were:1. Would the MC-11 permit this lens to be mounted on this body without damaging either? Yes.2. Is this lens among those that Sigma approves for use with the MC-11 (as indicated either by inclusion on a list of compatible lenses or by a response by the adapter's LED)? No.3. Was the functionality of the lens preserved when mounted on the Sony body using the MC-11? Here, I am not equipped to run ... MoreI recently found myself in the following situation: My best camera body is a Sony a7r4a but my best long lens is a Canon 400mm f4. For obvious reasons, I was interested in mounting the Canon lens on the Sony body. In hopes of doing this, I purchased the Sigma MC-11 Mount Converter based on its price and reviews.Among the questions that seemed to demand answers were:1. Would the MC-11 permit this lens to be mounted on this body without damaging either? Yes.2. Is this lens among those that Sigma approves for use with the MC-11 (as indicated either by inclusion on a list of compatible lenses or by a response by the adapter's LED)? No.3. Was the functionality of the lens preserved when mounted on the Sony body using the MC-11? Here, I am not equipped to run professional-level tests and can only offer my own impressions. The specific issues I tried to address were:a. Did the camera's image-stabilization system continue to operate? Seemingly not.b. Did the lens's image-stabilization system continue to operate? Yes.c. Is Eye Priority autofocus preserved? My test photos of animals and birds (my typical subjects) suggest that it is. To illustrate, consider the attached 2 photos of a catbird (f5.6, 1/250, ISO 800, handheld). The first is uncropped. The second is cropped so as to isolate the eye and surrounding facial area. I think that the eye is in better focus than feathers a short distance away and suggest that this is due to the camera, not me.d. Is the autofocus system able to pick up and track moving subjects? Again, my results suggest that it is. As an example, consider the attached photo of a great blue heron flying overhead (f4, 1/8000, ISO 1600, handheld).I hope that a few of you will find these observations useful.

Excellent Results
10 January 2023Robert

originally posted on bhphotovideo.com

Center sharpness excellent at all apertures and focal lengths. Extreme corners a bit soft until getting to f/5.6 from 16mm to about 22mm. From 24 to 28 very good to excellent corners from wide open on. Focus is quiet, maybe a bit noisier than my Canon L lenses. Autofocus is quick and accurate. This on my full frame 6D.This is a very large lens, so not a lightweight walking around lens. My main use for it is landscape photography from a tripod. Very happy with it.

Great match for Canon's mirrorless EOS RP
9 January 2020Steven

originally posted on bhphotovideo.com

This purchase was to have a lens with the same field of view as I get with my Tokina AT-X 11-16 f/2.8 DX lens on my Canon 60D but for my new EF-EOS R lens-mount-adapted Canon RP full frame. The Tokina opera 16-28mm f/2.8 FF gives me the needed field of view (actually a bit more on both ends of the focal range) when mounted to the RP.I've just used it in the daylight so far and am very satisfied with its spot-on consistent autofocus. I don't experience any focus hunting since I always autofocus the RP with one shot and spot metering modes enabled and never, ever back button focus unless there is sufficient contrast within the spot metering zone. Once focus is locked, I recompose and capture the shot. The Tokina opera's subtle styling reminds me of the Sigma 24, 35, ... MoreThis purchase was to have a lens with the same field of view as I get with my Tokina AT-X 11-16 f/2.8 DX lens on my Canon 60D but for my new EF-EOS R lens-mount-adapted Canon RP full frame. The Tokina opera 16-28mm f/2.8 FF gives me the needed field of view (actually a bit more on both ends of the focal range) when mounted to the RP.I've just used it in the daylight so far and am very satisfied with its spot-on consistent autofocus. I don't experience any focus hunting since I always autofocus the RP with one shot and spot metering modes enabled and never, ever back button focus unless there is sufficient contrast within the spot metering zone. Once focus is locked, I recompose and capture the shot. The Tokina opera's subtle styling reminds me of the Sigma 24, 35, and 50mm f/1.4 Art lenses I use for astrophotography. The Tokina opera 16-28mm FF will be used mainly for manual focus, tracked, multi-minute astrophotography capturing expansive views of stars that will be stacked and post processed with Photoshop. I'll beinterested to see its performance when capturing the summertime Milky Way in a few months. The Tokina 11-16mm / 60D combination used since 2011 was good for Milky Way captures but somewhat hobbled by the smaller APS-C sensor size. I will also be interested to see how this opera 16-28mm lens renders astrophoto colors using an Astronomik CLS Clip-Filter (light pollution filter) installedwithin the RP body in the suburbs versus without the filter at a darker sky site. Of course, the primary purpose for obtaining the internal light pollution filter was to avoid having to purchase any external filter mounting device to compensate for the lack of front filter threads on this bulbous front element lens. The opera 16-28mm lens has a smooth-turning manual focus that needs only slight pressure to rotate the focus clutch ring. It seems to have a somewhat more solid feel when switching between AF and MF than does the focus clutch ring activation on my 8-year-old Tokina AT-X 11-16mm lens; but that might be just my perception comparing the 2 rings. The zoom ring has a good resistance feel when changing focal lengths. The raised red bump for lens mount alignment is a handy feature when mounting the lens at night using only a redflashlight. The locking front lens cap fits securely providing confidence that the cap will not come off when removing the lens from an equipment bag. The opera 16-28mm weighs only 135 grams more than my Sigma 50mm f/1.4 Art lens and that's to be expected due to the 15 versus 13 elements used respectively for each lens. 95% of the time this opera lens will be mounted on a tripod or on a sidereal tracking mount so the lens weight is not going to be any issue for me. I do find that the opera 16-28mm lens balances well in hand when mounted on the RP with the EG-E1 grip attached to the camera. I believe this is a very reasonable-valued lens I can enjoy using for years to come.

Specification

Batteries1 Lithium Ion batteries required.
Is Discontinued By ManufacturerNo
Product dimensions5.08 x 5.08 x 5.08 cm; 22.68 Grams
Lens typeMacro
Compatible mountingsSigma SA, Canon EF, Sony E

Price comparison

Updated 5 months ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64
Amazon.com.au

$292.06

Sigma 489E965 Sigma MC-11 Mount Converter for Canon EF to Sony E-Mount Adapters & Converters, Black

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=camerawest.com&sz=64
Camera West

$132.76

Out of stock

Sigma MC-11 EF-E Mount Converter 54329799

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64
eBay.com.au

$199.66

[ Mint ] Sigma Mc-11 Adapter For Canon Ef To Sony E Mount Jp 17770

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=teds.com.au&sz=64
Ted's Cameras

$199.95

Out of stock

Sigma MC-11 Adaptor Canon EF to Sony E Mount | Secondhand

https://www.google.com/s2/favicons?domain=uniquephoto.com&sz=64
Unique Photo

$209.55

Backordered

Used Sigma MC-11 Mount Adapter Canon EF Lenses to Sony E - Excellent

Delivery $34.94

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

Canon 400mm f4 to Sony a7r4a
7 August 2022

I recently found myself in the following situation: My best camera body is a Sony a7r4a but my best long lens is a Canon 400mm f4. For obvious reasons, I was interested in mounting the Canon lens on the Sony body. In hopes of doing this, I purchased the Sigma MC-11 Mount Converter based on its price and reviews.Among the questions that seemed to demand answers were:1. Would the MC-11 permit this lens to be mounted on this body without damaging either? Yes.2. Is this lens among those that Sigma approves for use with the MC-11 (as indicated either by inclusion on a list of compatible lenses or by a response by the adapter's LED)? No.3. Was the functionality of the lens preserved when mounted on the Sony body using the MC-11? Here, I am not equipped to run ... MoreI recently found myself in the following situation: My best camera body is a Sony a7r4a but my best long lens is a Canon 400mm f4. For obvious reasons, I was interested in mounting the Canon lens on the Sony body. In hopes of doing this, I purchased the Sigma MC-11 Mount Converter based on its price and reviews.Among the questions that seemed to demand answers were:1. Would the MC-11 permit this lens to be mounted on this body without damaging either? Yes.2. Is this lens among those that Sigma approves for use with the MC-11 (as indicated either by inclusion on a list of compatible lenses or by a response by the adapter's LED)? No.3. Was the functionality of the lens preserved when mounted on the Sony body using the MC-11? Here, I am not equipped to run professional-level tests and can only offer my own impressions. The specific issues I tried to address were:a. Did the camera's image-stabilization system continue to operate? Seemingly not.b. Did the lens's image-stabilization system continue to operate? Yes.c. Is Eye Priority autofocus preserved? My test photos of animals and birds (my typical subjects) suggest that it is. To illustrate, consider the attached 2 photos of a catbird (f5.6, 1/250, ISO 800, handheld). The first is uncropped. The second is cropped so as to isolate the eye and surrounding facial area. I think that the eye is in better focus than feathers a short distance away and suggest that this is due to the camera, not me.d. Is the autofocus system able to pick up and track moving subjects? Again, my results suggest that it is. As an example, consider the attached photo of a great blue heron flying overhead (f4, 1/8000, ISO 1600, handheld).I hope that a few of you will find these observations useful.

Owen originally posted on bhphotovideo.com
Excellent Results
10 January 2023

Center sharpness excellent at all apertures and focal lengths. Extreme corners a bit soft until getting to f/5.6 from 16mm to about 22mm. From 24 to 28 very good to excellent corners from wide open on. Focus is quiet, maybe a bit noisier than my Canon L lenses. Autofocus is quick and accurate. This on my full frame 6D.This is a very large lens, so not a lightweight walking around lens. My main use for it is landscape photography from a tripod. Very happy with it.

Robert originally posted on bhphotovideo.com
Great match for Canon's mirrorless EOS RP
9 January 2020

This purchase was to have a lens with the same field of view as I get with my Tokina AT-X 11-16 f/2.8 DX lens on my Canon 60D but for my new EF-EOS R lens-mount-adapted Canon RP full frame. The Tokina opera 16-28mm f/2.8 FF gives me the needed field of view (actually a bit more on both ends of the focal range) when mounted to the RP.I've just used it in the daylight so far and am very satisfied with its spot-on consistent autofocus. I don't experience any focus hunting since I always autofocus the RP with one shot and spot metering modes enabled and never, ever back button focus unless there is sufficient contrast within the spot metering zone. Once focus is locked, I recompose and capture the shot. The Tokina opera's subtle styling reminds me of the Sigma 24, 35, ... MoreThis purchase was to have a lens with the same field of view as I get with my Tokina AT-X 11-16 f/2.8 DX lens on my Canon 60D but for my new EF-EOS R lens-mount-adapted Canon RP full frame. The Tokina opera 16-28mm f/2.8 FF gives me the needed field of view (actually a bit more on both ends of the focal range) when mounted to the RP.I've just used it in the daylight so far and am very satisfied with its spot-on consistent autofocus. I don't experience any focus hunting since I always autofocus the RP with one shot and spot metering modes enabled and never, ever back button focus unless there is sufficient contrast within the spot metering zone. Once focus is locked, I recompose and capture the shot. The Tokina opera's subtle styling reminds me of the Sigma 24, 35, and 50mm f/1.4 Art lenses I use for astrophotography. The Tokina opera 16-28mm FF will be used mainly for manual focus, tracked, multi-minute astrophotography capturing expansive views of stars that will be stacked and post processed with Photoshop. I'll beinterested to see its performance when capturing the summertime Milky Way in a few months. The Tokina 11-16mm / 60D combination used since 2011 was good for Milky Way captures but somewhat hobbled by the smaller APS-C sensor size. I will also be interested to see how this opera 16-28mm lens renders astrophoto colors using an Astronomik CLS Clip-Filter (light pollution filter) installedwithin the RP body in the suburbs versus without the filter at a darker sky site. Of course, the primary purpose for obtaining the internal light pollution filter was to avoid having to purchase any external filter mounting device to compensate for the lack of front filter threads on this bulbous front element lens. The opera 16-28mm lens has a smooth-turning manual focus that needs only slight pressure to rotate the focus clutch ring. It seems to have a somewhat more solid feel when switching between AF and MF than does the focus clutch ring activation on my 8-year-old Tokina AT-X 11-16mm lens; but that might be just my perception comparing the 2 rings. The zoom ring has a good resistance feel when changing focal lengths. The raised red bump for lens mount alignment is a handy feature when mounting the lens at night using only a redflashlight. The locking front lens cap fits securely providing confidence that the cap will not come off when removing the lens from an equipment bag. The opera 16-28mm weighs only 135 grams more than my Sigma 50mm f/1.4 Art lens and that's to be expected due to the 15 versus 13 elements used respectively for each lens. 95% of the time this opera lens will be mounted on a tripod or on a sidereal tracking mount so the lens weight is not going to be any issue for me. I do find that the opera 16-28mm lens balances well in hand when mounted on the RP with the EG-E1 grip attached to the camera. I believe this is a very reasonable-valued lens I can enjoy using for years to come.

Steven originally posted on bhphotovideo.com
I am loving it!
3 April 2023

I got to say that I am loving the fact of being able to use my canon or EF mount lenses on my sony fs5 thanks to this adapter. as espected there is draw backs although, when i am using my sigma lens the auto focus does work but very slow, this is not a problem for me as I mainly work manual but I think you should know. also the zoom does not work but again does not affect my style of shooting. keep this in mind but is you are the type to work in manuel mode I thing you will love it as well!!I only gave it 4 starts to be fair because it does have draw backs. but otherwise would have been 5

Oscar originally posted on bhphotovideo.com
Makes Sigma Art work like Sony native lens
24 February 2022

I love my Sigma Art lenses (have a series of primes) and when switching to Sony didn't want to lose my Sigma lenses which were Canon EF mount. So bought this.Yes. It will adapt my Canon EF Canon lenses and they AF and stop down fine and even focus faster on the a7iv than they did on Canon 5div. BUT in manual focus on the Sony, the Canon-brand lenses will not do the 10x punch-in for super-accurate manual focus. That's a bummer, since at 1.4, DOF is razor thin. Awesome thing here is that with the supported Sigma Art lenses using MC-11, the Sony WILL automatically punch in about 10x in manual focus for super-precise MF accuracy -- just like a Sony-brand lens will do. Just switch the lens body to MF and you're in business. Pops back to 100% field of view as soon as ... MoreI love my Sigma Art lenses (have a series of primes) and when switching to Sony didn't want to lose my Sigma lenses which were Canon EF mount. So bought this.Yes. It will adapt my Canon EF Canon lenses and they AF and stop down fine and even focus faster on the a7iv than they did on Canon 5div. BUT in manual focus on the Sony, the Canon-brand lenses will not do the 10x punch-in for super-accurate manual focus. That's a bummer, since at 1.4, DOF is razor thin. Awesome thing here is that with the supported Sigma Art lenses using MC-11, the Sony WILL automatically punch in about 10x in manual focus for super-precise MF accuracy -- just like a Sony-brand lens will do. Just switch the lens body to MF and you're in business. Pops back to 100% field of view as soon as you push the shutter button.The Sigma lens will make a wee bit of noise during AF whereas the Sony 24-105 is absolutely silent. So if you're going to have a shotgun mic mounted on hot shoe for audio and interviewing in a silent room, you may pick up some AF sound if your subject is moving. BUT I have a very sensitive off-camera shotgun mic mounted only 18 away from Sigma lens and it picks up zero AF sound.This turned my Canon EF mount Sigma Art lenses into Sony-capable lenses with zero compromise. Very, very happy with what this is doing. AF is constant and smooth and accurate during video and lightning fast for still photos.

Erik originally posted on bhphotovideo.com
Mc-11 is well worth the money
15 May 2023

I came from canon and went Sony and anyone who changes between brands knows that rebuilding your lens collection is really the hardest part. Getting the mc-11 allowed me to keep my trusted Ef lenses by my side (one of which being the canon 24-70 f2.8 L ii) which is an amazing lens. I've had no issues with the mount since I've gotten it. And would highly recommend it to anyone in the same similar situation I found myself in. I know it says sigma specific lenses but if anyone's concerned by that I just want to state I've used it with canon,sigma,rokinon with no issue. The only downside to this is that it won't work with the ef-s specific lenses.

David originally posted on bhphotovideo.com
Not bad but could use some design improvements...
10 January 2022

It does seem to be pretty good quality, and fairly heavy duty, but there are some design choices that make you wonder what they were thinking, and could have been greatly improved with just a few changes.Non-standard connector/cable - Seems like a usb-c (at least at the adapter end) would have been much preferred. Now I have to keep track of a special cable, that will only get used for this... (eye roll..)No weather sealing o-ring gasket.Location and shape of the connector port and cover. It's right where your fingers are when you are gripping the camera and sticks out with sharpish edges. It's annoying and seems like it could have easily gone on the bottom where it would have been nicely out of the way, or at least been a more smooth flush cover, or ... MoreIt does seem to be pretty good quality, and fairly heavy duty, but there are some design choices that make you wonder what they were thinking, and could have been greatly improved with just a few changes.Non-standard connector/cable - Seems like a usb-c (at least at the adapter end) would have been much preferred. Now I have to keep track of a special cable, that will only get used for this... (eye roll..)No weather sealing o-ring gasket.Location and shape of the connector port and cover. It's right where your fingers are when you are gripping the camera and sticks out with sharpish edges. It's annoying and seems like it could have easily gone on the bottom where it would have been nicely out of the way, or at least been a more smooth flush cover, or both.Using it with a Canon 70-200mm F4, on a Sony A7IV. For stills the auto focus works quite well, eye auto focus works and everything. Video auto focus does not work at all (for me). I mostly use this lens for landscape anyway, so I am okay with that. I am not docking it for this as I know it says Sigma Lenses Only so my 3 stars are simply for the design of it.It is pretty cool to be able to use a Canon lens on my Sony body with IBIS! :)

Charles originally posted on bhphotovideo.com
Should have an Arca-Swiss foot & fit EF-S lenses
30 March 2023

I bought this as a lower cost backup for my Metabones adapter. Overall it is not as good as the Metabones unless you are adapting Sigma lenses. The Canon 100mm f2.8L is known to be more challenging to adapt well. My copy focuses OK (not great) on the Metabones but is noticeably worse on the Sigma. The MC-11 also lacks any provision for an Arca-Swiss QR plate foot which would distribute the weight better when using heavier lenses on a tripod. There is an aftermarket lens collar/tripod ring but the fit is not as solid as it should be. I plan to shim the collar for a solid fit.

James M originally posted on bhphotovideo.com
Works perfectly but remember...!
23 December 2022

I had a 60-600 Sigma lens laying around for EF and I had adapted it for my Sigma Fp L mount. I hadn't used it in a couple of years and decided I wanted to try it out with my new Sony A7 IV so I ordered this adapter.When I initially tried it, most of the camera features didn't work, like auto focus and other information pass throughs.Then i remembered the chemical screwdriver everyone should always have at home or in their bag.Contact spray/head cleaner.I zapped the contacts on the adapter side (camera side) of the 60-600 lens with contact spray and tried it again. Everything worked perfectly and fast. It makes the lens work as well as I imagine a native E mount lens would work.Had I not used the contact spray on the contacts of the lens, I would have had ... MoreI had a 60-600 Sigma lens laying around for EF and I had adapted it for my Sigma Fp L mount. I hadn't used it in a couple of years and decided I wanted to try it out with my new Sony A7 IV so I ordered this adapter.When I initially tried it, most of the camera features didn't work, like auto focus and other information pass throughs.Then i remembered the chemical screwdriver everyone should always have at home or in their bag.Contact spray/head cleaner.I zapped the contacts on the adapter side (camera side) of the 60-600 lens with contact spray and tried it again. Everything worked perfectly and fast. It makes the lens work as well as I imagine a native E mount lens would work.Had I not used the contact spray on the contacts of the lens, I would have had to send it away for weeks and for hundreds of dollars.So in other words, the adapter is great. But if you haven't used the lens, or any device for a while that has sensitive low voltage contacts on it, remember to give it a short zap of contact spray and try again.

Vlad originally posted on bhphotovideo.com
Works reasonably well with A6400
30 December 2022

I love this thing. I can use lenses that are far better and cheaper than what's available in E-mount for my A6400. AF is pretty reliable with the Tokina 11-20 f2.8 XTI, although I've never had the chance or need to test it on fast moving subjects. AF works reasonably well with my old Canon 70-200 f2.8 IS if I first manually focus to withing about 90-95% (easy), from there AF usually locks on and guarantees sharp results.On the A6000 however, the 70-200 f2.8 IS is erratic and is pretty much manual focus. Haven't tried the A6000 with the Tokina yet.BTW I purchased this adapter when it first came out and I'm still using old firmware with it. I've heard that more recent firmware updates may have some compatibility issues with Canon brand lenses, although I have no ... MoreI love this thing. I can use lenses that are far better and cheaper than what's available in E-mount for my A6400. AF is pretty reliable with the Tokina 11-20 f2.8 XTI, although I've never had the chance or need to test it on fast moving subjects. AF works reasonably well with my old Canon 70-200 f2.8 IS if I first manually focus to withing about 90-95% (easy), from there AF usually locks on and guarantees sharp results.On the A6000 however, the 70-200 f2.8 IS is erratic and is pretty much manual focus. Haven't tried the A6000 with the Tokina yet.BTW I purchased this adapter when it first came out and I'm still using old firmware with it. I've heard that more recent firmware updates may have some compatibility issues with Canon brand lenses, although I have no personal experience with that.

Rebin originally posted on bhphotovideo.com

Specification

Batteries1 Lithium Ion batteries required.
Is Discontinued By ManufacturerNo
Product dimensions5.08 x 5.08 x 5.08 cm; 22.68 Grams
Lens typeMacro
Compatible mountingsSigma SA, Canon EF, Sony E