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Kazuto Yamaki
CEO (Representative Director / President), Sigma Corporation

Exclusive Interview with SIGMA CEO Kazuto Yamaki|Craft, Engineering & Beautiful Foolishness (Part 2)

📅 Sep 13, 2026 SIGMA Malaysia 17 MIN 1 VIEWS 64 SEGMENTS · 2 SPEAKERS
Join us for an exclusive conversation with Mr. Kazuto Yamaki, CEO of Sigma Corporation, as he shares the Craft, Engineering & 'Beautiful Foolishness' that have shaped SIGMA into one of the world's most respected imaging brands. Part 2 – The SIGMA Soul Hosted by Sigma Malaysia (Audio & Photo Distributor (F.E.) Sdn. Bhd.). Don't forget to like, comment, and subscribe for more exclusive interviews and behind-the-scenes content.

What Kazuto Yamaki said

Written from the verified transcript and checked against it. Every figure links to the moment it was said.

Sigma CEO Kazuto Yamaki discussed the Foveon sensor project, calling it a 'beautiful foolishness' started by his father during the film-to-digital transition when the company was financially struggling. He said early Foveon users inspired Sigma to make better optics, as the sensor's sharpness exceeded then-available lenses. Yamaki revealed the Foveon development is moving from R&D to product development, with a prototype sensor being made, though productization timing remains uncertain. He expressed a dream of creating an extreme exotic lens like the Zeiss Planar 50mm F0.7 used in 'Barry Lyndon.' He emphasized maintaining cost efficiency through a small organization (no secretary) without compromising quality. Yamaki said he is happy with the current Art, Contemporary, and Sports product lines, but acknowledged the I series may have confused customers, and he plans to expand it.

Key takeaways

  1. Foveon sensor development has moved from R&D to product development, with prototype sensor production underway, but no productization date is set.
  2. Yamaki dreams of creating an exotic lens like the Zeiss Planar 50mm F0.7, though telecentric requirements for digital sensors make it challenging.
  3. Sigma's cost efficiency comes from a small, lean organization; Yamaki has no secretary as CEO.
  4. The I series lens lineup may have confused customers, but Sigma will expand it and improve communication of its concept.
  5. Early Foveon users pushed Sigma to create better optics, which became an inspiration for the company's engineering.

Numbers and commitments

FigureWhat it refers toTypeAt
50mm Focal length of the Zeiss Planar lens Yamaki dreams of emulating other 9:54
F0.7 Aperture of the Zeiss Planar lens other 9:57

Chapters

  1. 0:00Patience required for Foveon development
  2. 1:58Foveon as beautiful foolishness
  3. 6:11Early Foveon users inspire optics
  4. 7:42Foveon development stage update
  5. 9:33Dream of exotic lenses
  6. 12:06Cost efficiency and quality
  7. 15:27Product line strategy and I series

Questions asked in this interview

9
  1. 1:26So, is there a project that was too foolish for you or for the market, but too beautiful for you to ignore?
  2. 3:38And do you know that this sensor, this camera changed my life?
  3. 8:23How long do you think that the next major announcement is going to be?
  4. 8:51Given that we've had so much new computational technology, let's say new production technology, is there anything lens-wise, I'm not going to ask about sensors, is there anything lens-wise that you've wanted to make, but still can't make?
  5. 9:22So, those things aside, the physically impossible things aside, is there anything realistically that you think you would like to make a little bit more extreme that has when still not quite there yet?
  6. 11:11Because the computations are not the same, right?
  7. 11:59But is there a cost implication that you have to consider for trying to correct everything within optics?
  8. 12:49Does it change the product you would make?
  9. 14:37Are we still keeping to the three categories, the broad categories?
Interviewer 0:07 ↗
So, you said ISO the sun. With the launch of the Sigma ISO farm, so you have gone from polishing glass to growing rice. Such two extreme things at a spectrum, you know, two extremes. So, there's a patience required for a harvest field similar to the long development cycles, something like the Foveon sensor.
Kazuto Yamaki 0:40 ↗
Good question. But actually, we don't need patience because even either we make lenses or rice or Foveon sensor, we've been keeping ourselves very busy. So, we just ask for patience to the customer side. So, I truly feel sorry to customers to keep them wait for a long time. But we've been working so busy and hard to provide, to deliver the Foveon sensor camera.
Interviewer 1:22 ↗
Okay. So, I've been waiting actually.
Kazuto Yamaki 1:24 ↗
Thank you very much.
Interviewer 1:26 ↗
So, my next question is, yeah, you always use the phrase 'beautiful foolishness' to describe projects like the FP or the Foveon sensor. So, is there a project that was too foolish for you or for the market, but too beautiful for you to ignore?
Kazuto Yamaki 1:51 ↗
In the past... or present maybe?
Interviewer 1:54 ↗
Or present, he cannot review.
Kazuto Yamaki 1:58 ↗
Oh, yeah. Yeah, actually probably Foveon sensor camera.
Interviewer 2:05 ↗
Oh.
Kazuto Yamaki 2:05 ↗
Mhm. It was like that.
Interviewer 2:08 ↗
Oh, okay.
Kazuto Yamaki 2:09 ↗
And you know, my father started the project. He was one man of vision. And actually, when the digital imaging started, we did not know that the digital camera uses a multi-color capture sensor. And it was quite different, and it's still different from the way a film captures the color light. And my father believed this can be a future. And then we started the project. While we were financially suffering at the time. It was really a tough time for us because it was the time when the camera system was shifting from film to digital. And the SL system, the SL market was, you know, decreasing during this transition time. And our sales, the interchangeable lens, also declined or declining. But then my father started the Foveon sensor camera project. So, it was quite a foolish project, but it was beautiful because we started with his vision and our passion.
Interviewer 3:38 ↗
And do you know that this sensor, this camera changed my life? It changed my life. Really. Honestly. Before that, I was doing programming. Now, I've become a photographer. All thanks to the chip.
Kazuto Yamaki 3:52 ↗
Three weeks ago, the project manager at the time at Foveon site visited Japan with his family. So, we met him after many years. And according to him, the engineers at the early Foveon were still getting together. They still have a reunion. I asked who comes to the gathering, and most of the key people were there. So, they said they were still, you know, excited about what they did, and they still have very beautiful memories from that chip.
Interviewer 4:39 ↗
Me, too. Really, I tell you, I can't relate or can't tell you really for the first time when I see the output from Foveon.
Kazuto Yamaki 4:49 ↗
Actually, I do appreciate Steve because he used SD9 and the SD10, which were really, really difficult to use.
Interviewer 4:58 ↗
That's right.
Kazuto Yamaki 4:59 ↗
Very short battery, right? And very hard to use.
Interviewer 5:05 ↗
Oh, you can say that. But, I overcame all the obstacles. It's fantastic. The output just blew me away. Really. Honestly, I really thank you. You know, it changed my life, honestly.
Kazuto Yamaki 5:16 ↗
Thank you very much.
Interviewer 5:18 ↗
I think if I can add something, Foveon was also the communication bridge between Steve and my partner and me when we met almost two decades ago. We somehow went to a function, and we talked about cameras, and got to know that Steve was representing Sigma as an ambassador, and he uses that very special camera, which I'm quite aware of. And we started talking about it the whole night, you know. And that's how we got to know each other so well now.
I'm probably the very first person who used the Foveon camera in Malaysia. And then I did not know where to buy the lens. Honestly, it's like I don't know. Some sorry would say that. And then eventually I bought the lens 24-70 from Taiwan. And the 50 mm from Sigma Malaysia, I think.
Kazuto Yamaki 6:11 ↗
Actually, we've got so much inspiration and also ideas from users, especially the early Foveon camera users. Actually, it was them, I mean the early Foveon users, that asked us to make even better optics because the Foveon sensor was so sharp and gave us fine details. At that time, to be honest, Sigma did not have enough lenses that resolved well enough for the Foveon sensor. So, they asked us to make the best of the best optics to support the Foveon sensor. It was really inspirational.
Interviewer 7:00 ↗
Yeah. Then comes the 50 and the 85. I was totally blown away, I tell you.
Kazuto Yamaki 7:07 ↗
Even today, I share that kind of what happened between us and the early Foveon users to our young engineers because we can learn from customers.
Interviewer 7:20 ↗
Yamakisan, I will have to ask you some very difficult questions. Also because I think the global audience who will be watching this podcast may eventually ask at what stage is the Foveon development right now. Yes, you have mentioned that it is continually being developed, so we would like to know at what stage it is.
Kazuto Yamaki 7:42 ↗
Right now, it's a transition time from the R&D technology development stage to the product development stage. So, the technology has almost been proved as it works. So, now we are going to make a prototype sensor. But still not sure if we can productize it, and we're still not sure when we can productize it, but we are now moving to the next stage.
Interviewer 8:23 ↗
Okay. How long do you think that the next major announcement is going to be?
Kazuto Yamaki 8:29 ↗
Mhm. This is a million-dollar question.
Interviewer 8:35 ↗
Add two more zeros.
Kazuto Yamaki 8:38 ↗
It's difficult to answer, but as we are working very hard, so I hope customers stay patient and waiting for the announcement from us.
Interviewer 8:51 ↗
Changing topic a little bit, but still staying with the idea of difficult questions. Given that we've had so much new computational technology, let's say new production technology, is there anything lens-wise, I'm not going to ask about sensors, is there anything lens-wise that you've wanted to make, but still can't make? I mean, let's say a ridiculous example would be everybody asks for, I want a 14 to 200 mm F1.4. That's impossible optically.

31 more exchanges in this transcript

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Cite this transcript

APA, MLA, BibTeX
APA

Yamaki, K. (2026, September 13). Exclusive Interview with SIGMA CEO Kazuto Yamaki|Craft, Engineering & Beautiful Foolishness (Part 2) [Interview transcript]. SIGMA Malaysia. CEOInterviews.AI. https://ceointerviews.ai/interview/1348371/

MLA

Kazuto Yamaki. "Exclusive Interview with SIGMA CEO Kazuto Yamaki|Craft, Engineering & Beautiful Foolishness (Part 2)." SIGMA Malaysia, 13 Sep. 2026. Transcript, CEOInterviews.AI, https://ceointerviews.ai/interview/1348371/.

BibTeX
@misc{yamaki2026_1348371,
  author       = {Kazuto Yamaki},
  title        = {Exclusive Interview with SIGMA CEO Kazuto Yamaki|Craft, Engineering \& Beautiful Foolishness (Part 2)},
  howpublished = {Interview transcript, SIGMA Malaysia. CEOInterviews.AI},
  year         = {2026},
  month        = {sep},
  url          = {https://ceointerviews.ai/interview/1348371/},
  note         = {Speaker-attributed transcript with timestamps}
}