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Sigma 17mm f/4 DG vs Sigma 17mm f/4 DG DN

  
 
johncocci
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p.1 #1 · Sigma 17mm f/4 DG vs Sigma 17mm f/4 DG DN


I am not familiar with Sigma lens models. Does anyone know what the difference between these two lenses is? DN vs non-DN. B&H shows the non-DN as a new item. Same thing for the 24mm 3.5 version. I did some searching but didn't find anything, maybe I didn't look hard enough. Thanks.

John



Feb 03, 2026 at 05:59 PM
tsdevine
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p.1 #2 · Sigma 17mm f/4 DG vs Sigma 17mm f/4 DG DN



It's just a name change. They used DG DN to differentiate from DSLR DG HSM lenses. DN meant made for mirrorless from the ground up. Now that's pretty much all their new lenses, so they are dropping the DN from the name.

That's my understanding.



Feb 03, 2026 at 06:17 PM
chinoamigo
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p.1 #3 · Sigma 17mm f/4 DG vs Sigma 17mm f/4 DG DN


I believe it is just a rebranding, dropping the DN from the name and maybe packaging/exterior changes. Optical formula remains the same.

See link: https://www.sigma-global.com/en/news/2025/02/24/010844/



Feb 03, 2026 at 06:18 PM
johncocci
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p.1 #4 · Sigma 17mm f/4 DG vs Sigma 17mm f/4 DG DN


Thank you.


Feb 03, 2026 at 06:39 PM
 


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Knut.
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p.1 #5 · Sigma 17mm f/4 DG vs Sigma 17mm f/4 DG DN


Wasn‘t there a difference concerning a magnetic lens cap for the non-DN version?
(At least for some lenses?)



Feb 04, 2026 at 05:12 PM
tsdevine
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p.1 #6 · Sigma 17mm f/4 DG vs Sigma 17mm f/4 DG DN



I think the first "i" series DG DN was the 45mm f/2.8. It didn't come with the magnetic cap. I think the magnetic cap started with the next "i" series DG DN (maybe the 65i?). So I think the 45mm f/2.8 DG is designed to allow for the magnetic cap.

This is purely from memory, triggered by your comment. So I could be wrong.

Knut. wrote:
Wasn‘t there a difference concerning a magnetic lens cap for the non-DN version?
(At least for some lenses?)





Feb 04, 2026 at 09:21 PM
Knut.
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p.1 #7 · Sigma 17mm f/4 DG vs Sigma 17mm f/4 DG DN


Yes, since both versions of the 45mm lens are on the market, and I recently wanted to buy one, I noticed it for this specific lens.
I did not know if it was a more general differentiator for DN versus non-DN lenses.



Feb 05, 2026 at 03:55 AM
Outstanding
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p.1 #8 · Sigma 17mm f/4 DG vs Sigma 17mm f/4 DG DN


DG → Digital Grade (Full-frame, Digital-optimized)

DC → Digital Crop (APS-C)

DN → Digital Neo/New (Mirrorless)

HSM → Hyper Sonic Motor (Developed in the DSLR era)

Once Sigma fully committed to mirrorless, DN became functionally redundant for new full-frame lenses because they no longer make DG HSM (DSLR) lenses.




Feb 05, 2026 at 12:06 PM







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