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Using a Sigma 500mm F4 EF adapted to Sony

  
 
Samuel Geissin
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p.1 #1 · Using a Sigma 500mm F4 EF adapted to Sony


Looking at getting a super telephoto and I am trying to figure out if a Sigma 500mm f4 EF with an MC-11 would work well with a sony a9ii and sony a1. I have those cameras and they're great, but looking for a long super telephoto that isn't insanely expensive but still good quality. It seems like it could be a good option, but I'm curious if people have used that combo for sports?




Sep 21, 2026 at 07:44 AM
mogul
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p.1 #2 · Using a Sigma 500mm F4 EF adapted to Sony


Look also at A mount lenses such as the 500f4 or 300 f2.8 with Sony adapters. You can even use the heavy weight minolta 600 f4.


Sep 21, 2026 at 09:40 AM
DWOfPaul
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p.1 #3 · Using a Sigma 500mm F4 EF adapted to Sony


It will probably depend on what price you can find one for. If you find one for, say, around 2k it's probably worth giving it a try. If you're going to spend 4k+ your proabbly better off with the Sigma 300-600mm f4. My understanding is that even with the MC-11 you will still be limited to 15fps with AF-C, so depending on how you plan to use a 500mm for sports, this may pose a limitation.


Sep 21, 2026 at 11:05 AM
Samuel Geissin
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p.1 #4 · Using a Sigma 500mm F4 EF adapted to Sony


Does the performance of the Sony 500mm f4 change compared to the sigma one? is one going to be better for fps and autofocus?


Sep 21, 2026 at 11:25 AM
mogul
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p.1 #5 · Using a Sigma 500mm F4 EF adapted to Sony


I can't speak about AF of the Sigma but like 3rd party lenses, the Sony A mount is limited to 15 fps and can't use Sony TC's. The 500 is very fast & the 600 High Speed (screw drive) is very fast for its era.


Sep 21, 2026 at 11:45 AM
Sirfishalot
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p.1 #6 · Using a Sigma 500mm F4 EF adapted to Sony


I have this combo on my A9. The Sigma is a Canon mount. It works well even with a Canon or Sigma 1.4X TC. Even the 2X (for stationary objects), but your frame rate drops and autofocus is not as good as with a native lens.
You can probably find that lens for about $25-2700.

JayT




Sep 21, 2026 at 12:52 PM
Sirfishalot
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p.1 #7 · Using a Sigma 500mm F4 EF adapted to Sony


Samuel Geissin wrote:
Does the performance of the Sony 500mm f4 change compared to the sigma one? is one going to be better for fps and autofocus?


Sony doesn’t have a 500/4 yet.



Sep 21, 2026 at 12:53 PM
q-w-z
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p.1 #8 · Using a Sigma 500mm F4 EF adapted to Sony


Sirfishalot wrote:
Sony doesn’t have a 500/4 yet.


Sony had 4/500mm on A-mount, very rare.



Sep 21, 2026 at 02:23 PM
mogul
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p.1 #9 · Using a Sigma 500mm F4 EF adapted to Sony


Sirfishalot wrote:
Sony doesn’t have a 500/4 yet.


Sony has a 500f4 in A mount. Very expensive lens, but probably fairly reasonable since it is orphaned.



Sep 21, 2026 at 02:26 PM
 


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Samuel Geissin
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p.1 #10 · Using a Sigma 500mm F4 EF adapted to Sony


DWOfPaul wrote:
It will probably depend on what price you can find one for. If you find one for, say, around 2k it's probably worth giving it a try. If you're going to spend 4k+ your proabbly better off with the Sigma 300-600mm f4. My understanding is that even with the MC-11 you will still be limited to 15fps with AF-C, so depending on how you plan to use a 500mm for sports, this may pose a limitation.


Even with a 300-600 f4 it still has the 15fps limit right? Thats a third party rule from Sony right?



Sep 22, 2026 at 10:38 AM
Samuel Geissin
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p.1 #11 · Using a Sigma 500mm F4 EF adapted to Sony


Seems like the new 600 F6.3 and 400 F4.5 is a better option now anyway


Sep 22, 2026 at 10:38 AM
DWOfPaul
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p.1 #12 · Using a Sigma 500mm F4 EF adapted to Sony


Samuel Geissin wrote:
Even with a 300-600 f4 it still has the 15fps limit right? Thats a third party rule from Sony right?


Yes, all third party E mount lenses are limited to 15fps in AF-C. Including the Sigma 300-600mm f4 unfortunately.



Sep 22, 2026 at 11:24 AM
Choderboy
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p.1 #13 · Using a Sigma 500mm F4 EF adapted to Sony


It works very well.
My first Sony was A9, bought mid 2019. I already owned Sigma 500 f4.
I used it with A9 a lot for 6 months (was not working) before buying Sony 200-600.
15 fps limit has already been mentioned.
The only other native function not supported I know of is Pre-AF.
Sigma states the MC-11 is not compatible with TCs. Is this true or was it said to satisfy Sony?
IMHO, it's not quite right with TCs regarding AF.

If the price is good, I'd consider buying.
Judging by other users reports though, the Sigma 500 f5.6 might be better.
Facts: A stop slower. Less than half the weight.
User reports: AF very good. There are more user reports to be found for the 500 5.6.








Sep 23, 2026 at 03:13 AM
jeffbuzz
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p.1 #14 · Using a Sigma 500mm F4 EF adapted to Sony


The Sigma 500 f/4 EF-mount works well via the MC-11 with a9 II. But I did find AF-C was slightly more consistent on moving subjects using Canon R cameras via the Canon EF-EOS R adapter. The lens actually seemed to work better adapted to the R5 than it ever did on native EF bodies.

Optics are superb. If you need the extra speed and can deal with the size and weight, the 500/4 is an extraordinary lens. You can get the native FE-mount 500/5.6 for the same money. Focus is definitely faster and more consistent on the Sony mount f/5.6 lens. So unless you absolutely need the extra stop of light, do consider that option as well.







Sep 23, 2026 at 11:03 AM
schlotz
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p.1 #15 · Using a Sigma 500mm F4 EF adapted to Sony


Unfortunately, like most things in photography you will be dealing with compromise. Yup two things, max fps will be 15 and the AF acquisition speed will not be the same as native glass. I had an issue with the AF acquisition speed shooting soccer with adapted Canon glass on Sony. That hastened my planned switch over from Canon to Sony. Having just sold the bodies I was expecting to ease into Sony glass, but after experiencing the AF issue, I quickly sold the remaining glass and went to Sony versions. JMTC


Sep 23, 2026 at 02:48 PM
Sirfishalot
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p.1 #16 · Using a Sigma 500mm F4 EF adapted to Sony


My Canon mount copy (which I wii be selling soon) works very well. PM me if interested.

JayT














Oct 01, 2026 at 07:33 AM
EB-1
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p.1 #17 · Using a Sigma 500mm F4 EF adapted to Sony


schlotz wrote:
Unfortunately, like most things in photography you will be dealing with compromise. Yup two things, max fps will be 15 and the AF acquisition speed will not be the same as native glass. I had an issue with the AF acquisition speed shooting soccer with adapted Canon glass on Sony. That hastened my planned switch over from Canon to Sony. Having just sold the bodies I was expecting to ease into Sony glass, but after experiencing the AF issue, I quickly sold the remaining glass and went to Sony versions. JMTC


Unfortunately Sony makes no 500/4, nor a bunch of other Canon and Nikkor lenses I liked to use.

EBH



Oct 01, 2026 at 04:06 PM







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