helged Posted November 15, 2024 Share #61 Posted November 15, 2024 Advertisement (gone after registration) 9 hours ago, jaapv said: https://www.dpreview.com/interviews/6004010220/sigma-full-frame-foveon Not much hope there... I am still ootimistic: The attitude of Yamaki-san is commendable (as are Sigma's many products in recent years): "If we release the Foveon X3 sensor today and people see the quality, it means a lot for the industry, that’s the reason I’m still passionate about the project." 2 Link to post Share on other sites More sharing options...
Advertisement Posted November 15, 2024 Posted November 15, 2024 Hi helged, Take a look here Sigma L Mount + Foveon Sensor. I'm sure you'll find what you were looking for!
Olaf_ZG Posted November 17, 2024 Share #62 Posted November 17, 2024 On 11/14/2024 at 11:40 PM, jaapv said: It is the latest - and what are a few months to a project that has been stagnating for the last six years at least? Like Leica and the SL24… Link to post Share on other sites More sharing options...
helged Posted November 17, 2024 Share #63 Posted November 17, 2024 9 hours ago, Olaf_ZG said: Like Leica and the SL24… Well, in contrast to Leica, Sigma actually provides regular updates on the status of - in this case - the FF Foveon sensor. 1 Link to post Share on other sites More sharing options...
40mm f/2 Posted December 2, 2024 Share #64 Posted December 2, 2024 I think there are just too many inherent issues with using Silicon based technology to make anything competitive with Bayer pattern sensors in terms of sensitivity of the lower layers. I think perovskite based sensors are much more promising https://www.empa.ch/web/s604/eq83-perovskit-pixel-stapel . Each of different layers of the photosensor can be designed to absorb a specific wavelength range so no color filters are required and they promise much higher sensitivity. I hope Sigma is involved in that technology 1 Link to post Share on other sites More sharing options...
helged Posted February 21 Share #65 Posted February 21 To come or not to come: https://www.l-rumors.com/fake-or-real-teaser-for-the-worlds-first-sigma-fp-camera-with-full-frame-foveon-sensor/ 1 2 Link to post Share on other sites More sharing options...
keeping_a_balance Posted February 27 Share #66 Posted February 27 Petapixel podcast this week had a interview with CEO of Sigma, he stated they were still trying their best to make it come to mkt, stating they were finding more complications than anticipated... But seems he feels like he needs to deliver... 1 Link to post Share on other sites More sharing options...
pop Posted February 27 Share #67 Posted February 27 Advertisement (gone after registration) In a manner of speaking, it wouldn't matter so much if they ever succeeded in making a full format sensor. I have reduced my 'everyday set' (in quotes because I don't photograph very often any more) to the APS-C format. Epson R-D1 for the rangefinder experience, Leica CL for the occasion where rangefinders are not so well suited. I would love very much to have an APS-C Foveon camera which takes L and M lenses. Since I already own the M-to-L adapter, all it would take would be an L body. 1 Link to post Share on other sites More sharing options...
PhotoCruiser Posted February 27 Share #68 Posted February 27 vor 15 Minuten schrieb pop: In a manner of speaking, it wouldn't matter so much if they ever succeeded in making a full format sensor. What would be wrong with a full frame sensor if he could have the same photo and video quality of a aps-c or micro 4/3? The new and highly discussed Sigma BF has a full frame sensor, L-Mount and is rather tiny and would be a option for being "light". Chris Link to post Share on other sites More sharing options...
farnz Posted February 27 Share #69 Posted February 27 39 minutes ago, PhotoCruiser said: What would be wrong with a full frame sensor if he could have the same photo and video quality of a aps-c or micro 4/3? The new and highly discussed Sigma BF has a full frame sensor, L-Mount and is rather tiny and would be a option for being "light". Chris Only that it doesn't have a Foveon sensor, Chris. Pete. 2 Link to post Share on other sites More sharing options...
PhotoCruiser Posted February 27 Share #70 Posted February 27 (edited) vor einer Stunde schrieb farnz: Only that it doesn't have a Foveon sensor, Chris. Upps, i overseen that as i expected the BF has the highly regarded Faveon sensor. Chris Edited February 27 by PhotoCruiser 2 Link to post Share on other sites More sharing options...
bags27 Posted February 27 Author Share #71 Posted February 27 8 hours ago, keeping_a_balance said: Petapixel podcast this week had a interview with CEO of Sigma, he stated they were still trying their best to make it come to mkt, stating they were finding more complications than anticipated... But seems he feels like he needs to deliver... I've gone back almost exclusively to film, but wanted a digital camera for international travel (film security is too much of a hassle). I waited and waited, even holding on to some of my glass from my late CL, since I thought it would be an excellent "value play." But I gave up waiting, and have a nicely used Blad 907x 50c that is at least somewhat satisfying on its own and slides right onto the back of my 500 C/M and SWC. I still occasionally use my Sigma DP2-Merrill, which is terrific fun and wonderful images. While I'd be really tempted by a new Sigma Foveon FF in L Mount, I'm no longer counting on it. 1 Link to post Share on other sites More sharing options...
jankap Posted June 9 Share #72 Posted June 9 (edited) See https://www.dpreview.com/news/6358015894/imec-photonic-waveguides-promise-color-with-no-light-loss?utm_source=feedotter_DPR_Weekly&utm_medium=email&utm_campaign=FO-06-08-2025&utm_content=httpswwwdpreviewcomnews6358015894imecphotonicwaveguidespromisecolorwithnolightloss&utm_source=DPReview's+Email+Newsletter+List&utm_campaign=08c77f403c-EMAIL_CAMPAIGN_2025_06_08_06_20&utm_medium=email&utm_term=0_0ba4bdef1a-08c77f403c-69848731&mc_cid=08c77f403c&mc_eid=4976e7c859 Edited June 9 by jankap 1 2 Link to post Share on other sites More sharing options...
jaapv Posted June 9 Share #73 Posted June 9 Very interesting, but looking at this, it may have the same problem that has held back the use of Foveon all these years: too long a light path to the sensitive surface resulting in too small an acceptance angle which produces unacceptable crosstalk. 1 Link to post Share on other sites More sharing options...
bags27 Posted June 10 Author Share #74 Posted June 10 15 hours ago, jaapv said: Very interesting, but looking at this, it may have the same problem that has held back the use of Foveon all these years: too long a light path to the sensitive surface resulting in too small an acceptance angle which produces unacceptable crosstalk. I have no grounding in the technology. But if that is the hurdle with the FF Foveon, why wasn't a hurdle with the smaller-chip Foveon? I still use my DP-2 Merrill and, within its limitations of ISO and write speed, it renders fantastically. Still hoping for the FF Foveon in L mount.... 1 Link to post Share on other sites More sharing options...
farnz Posted June 10 Share #75 Posted June 10 7 minutes ago, bags27 said: I have no grounding in the technology. But if that is the hurdle with the FF Foveon, why wasn't a hurdle with the smaller-chip Foveon? I still use my DP-2 Merrill and, within its limitations of ISO and write speed, it renders fantastically. Still hoping for the FF Foveon in L mount.... The link that Jankap posted is for a completely different technology from the Foveon technology and has nothing to do with Foveon. It is a different type of sensor from either Bayer or Foveon. Pete. 1 Link to post Share on other sites More sharing options...
jaapv Posted June 10 Share #76 Posted June 10 Because the incidence angle is smaller on a smaller sensor. 1 Link to post Share on other sites More sharing options...
jaapv Posted June 10 Share #77 Posted June 10 2 minutes ago, farnz said: The link that Jankap posted is for a completely different technology from the Foveon technology and has nothing to do with Foveon. It is a different type of sensor from either Bayer or Foveon. Pete. Quite, Pete But I suspect that it has an incidence angle limitation caused by deep wells Like Foveon, but for a different reason ( long ”tubes” instead of three sensitive layers.) 3 Link to post Share on other sites More sharing options...
Einst_Stein Posted June 10 Share #78 Posted June 10 Foveon, or the vertial color seperation styructure, has a hopeless disadvanatge in the back illumintaed technology. This is where the horizontal color seperation has the compelling advantage. The key issue is how to access the sensor diode. With horizontal color seperation, the sensor diodes are accessed through the signal pick-up circuits that can be put in another layer as much as possible in the somiconductor structure. Since the sensor diodes are parallelly placed horizontally, there light blocking of the access circuits can be minimized. On the other hand, with vertical color seperation the access circuits will be much more on the way of the sensing layers. So, effectively, the exposure efficicency (in terms of usable exposed area) of the vertical color seperation will always be inferior. Carver Mead started the vertical color seperation sensor in 199x, about 10 years earlier than the practical Back illuminated sensor technology. When back illuminated sensor came out, it became more and more obvious that the vertical color seperation would stay inferior to the horizontal color seperation. With more and more vertial layers in the semiconctor structure, Foveon will fall far and far behind. 1 Link to post Share on other sites More sharing options...
farnz Posted June 10 Share #79 Posted June 10 Do I detect AI generation in the previous comment? 🤔 Pete. Link to post Share on other sites More sharing options...
jaapv Posted June 10 Share #80 Posted June 10 54 minutes ago, farnz said: Do I detect AI generation in the previous comment? 🤔 Pete. According to my AI detection software : not. 1 Link to post Share on other sites More sharing options...
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