Will Sigma MC-21 let me use Tamron EF lens with the Lumix S5?

Jim Hathaway · Feb 1, 2023

Hi all,

Quick intro... had to create a new account because I took a break from photography since I was last active on DPreview (10-20 years ago) and couldn't remember my user/pw combo.

Anyway, I've been shooting studio/product photography the last few years, and I just upgraded from the GX85 to the S5, which will be my first step out of m43 and into full frame digital.

I've been using the Lumix 12-60 (24-120 equiv) m43 lens with the GX85.

Now with the S5 inbound, before I spend $700+ on the Lumix L 24-105 F/4 macro lens, I have an older Tamron 24-125 EF-mount lens (back from when I shot Canon film cameras) that I thought about trying.

Does anyone know if the Sigma MC-21 would let me use this lens on the S5? And side question, would the Tamron be in the same ballpark, quality wise, as the Lumix L?

Thanks,
Jim

Greg Ohio · Feb 1, 2023

24-135? Which version?

It will probably function, but autofocus is likely to be slow or non-existent. The IQ is also likely quite inferior.

The Lumix 24-105 is a fantastic lens. Do you already have the 20-60?

Nevyn72 · Feb 1, 2023

This might help you with the decision, EF lensen seem to work fine but he didn't try with the tamron:

RichardCass · Feb 1, 2023

My Irix lenses function perfectly with the MC21 - but they are of course manual focus.

Strangefinder · Feb 2, 2023

Jim Hathaway said:
Hi all,

Quick intro... had to create a new account because I took a break from photography since I was last active on DPreview (10-20 years ago) and couldn't remember my user/pw combo.

Anyway, I've been shooting studio/product photography the last few years, and I just upgraded from the GX85 to the S5, which will be my first step out of m43 and into full frame digital.

I've been using the Lumix 12-60 (24-120 equiv) m43 lens with the GX85.

Now with the S5 inbound, before I spend $700+ on the Lumix L 24-105 F/4 macro lens, I have an older Tamron 24-125 EF-mount lens (back from when I shot Canon film cameras) that I thought about trying.

Does anyone know if the Sigma MC-21 would let me use this lens on the S5? And side question, would the Tamron be in the same ballpark, quality wise, as the Lumix L?

Thanks,
Jim

Technically, the MC-21 is compatible with Sigma’s Global Vision lenses (i.e. ART, Sports, Contemporary), but most modern EF lenses reportedly work.

Tamron is more likely to be a problem than Canon or Sigma, though, and some people seem to prefer the Viltrox (?) for EF lenses. In fact, I think there were reports of AF with Sigma’s own lenses being better on the Viltrox.

The advent of phase-detect L-mount cameras, fp L, S5II, S5IIx apparently benefits the MC-21 performance substantially.

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Jim Hathaway · Feb 2, 2023

I believe it's the Tamron 24-135 f/2.8, probably ~15 years old at this point.

My only Lumix lenses are m43. I've decided to just get the Lumix 24-105 (the only one I'll need for my studio work).

Jim Hathaway · Feb 2, 2023

Thanks

Jonathan Mac · Feb 6, 2023

It didn't work with my EF Tamron 28-75/2.8. It tried to focus, camera beeped an AF confirmation but it was clearly well out of focus. Same as my other EF lenses except for the Canon STM 50/1.8.

Check where you live but close to me there's a place that rents the MC-21 for €15 a day - definitely worth a try rather than buying one and losing money if you sell it on (though I bought used and then sold it so lost virtually nothing, but used ones are fairly rare).

pdk42 · Feb 6, 2023

Jim Hathaway said:
I've decided to just get the Lumix 24-105 (the only one I'll need for my studio work).

I think that's a smart move. Native lenses will just work, and work very well. You also get Sync IS with the 24-105. I find mine to be really great - fantastic IQ and really nothing to complain about apart from its rather high price compared to other 24-105 f4 lenses on the market.

Off The Mark · Feb 8, 2023

pdk42 said:
Jim Hathaway said:

I've decided to just get the Lumix 24-105 (the only one I'll need for my studio work).

Click to expand...

I think that's a smart move. Native lenses will just work, and work very well. You also get Sync IS with the 24-105. I find mine to be really great - fantastic IQ and really nothing to complain about apart from its rather high price compared to other 24-105 f4 lenses on the market.

Nevyn72 · Feb 8, 2023

I had the 20-60 and swapped it out for the 24-105. Much better lens, but i do miss the wide 4mm...

I have a preorder for the S5iix, again with the kit lens.

So from end may i can use the 20-60 on the S5, especially for the wide end, and use the 24-105mm on the S5iix.

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Will Sigma MC-21 let me use Tamron EF lens with the Lumix S5?

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