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p.1 #19 · p.1 #19 · How/when did Sony lose exclusivity to stacked sensors? | |
bs kite wrote:
1. the article:
https://www.dpreview.com/articles/2299527448/why-the-speed-of-stacked-cmos-is-key-to-nikon-s-pro-mirrorless-camera
Last sentence in 3rd paragraph says........
"The news that Sony's camera division won't be the only one with access to this technology in future is excellent news for competition within the industry."
2. How/why does it happen that the stacked sensor is no longer exclusive to Sony?
it's because sony is now apparently willing to sell cutting-edge sensor tech to other milc manufacturers, instead of releasing it first in a sony camera, then not selling it to other companies until after 18 months or whatever... i hate petapixel, but they covered that with a couple of relevant links: petapixelDOTcom/2017/03/22/sony-keeps-best-sensors-cameras/
you'll have to copy/paste/edit in your browser to see it, i'm not going to improve their search engine rankings with an active link.
text from above: "“When we make sensors we put them in several categories,” Ishizuka told DPReview. “[At any given time] one category of sensors is reserved purely for Sony cameras – we don’t sell them to other companies. Like the sensor in the A7S.”
“But once we’ve enjoyed this advantage we might sell them on later, after some time has passed,” he continued. “This is the second category. The third category of sensors is completely generic – the sensors are created for use internally and to sell externally, to anybody. China or Taiwan or wherever.”
Sony does appear to be benefiting from using its best sensor designs for its own cameras."
here the link to the missing imaging-resource sony interview that imaging-resource deleted off of their site: https://web.archive.org/web/20170318105719 /http://www.imaging-resource.com/news/2017/03/17/sony-thailand-factory-tour-qa-mapping-out-the-future-of-the-interchangeable
text from above: "Tanaka briefly spoke about how Sony reserves its best custom sensor designs:
“As you know well, our key driver is the image sensor, and we already invested a lot of money for the image sensor development,” Tanaka tells Imaging Resource. “And the sensor is a custom [design, meaning that] only Sony can use these sensors, and our strength is our in-house technology.”
bs kite wrote:
Is the following related in any way?
3. https://www.nikon.com/news/2021/0303_cmos_01.htm
sony ff milc uses a triple-stacked sensor with ram, while that nikon concept sensor is apparently for a dual-stack sensor that doesn't have any ram... if a dual-stacked sensor was good enough for a1-level performance, you can bet that sony would have used a dual-stacked sensor with the a1.
for example, sony did not use a memory-stacked sensor in their Xperia 1 II, but they did with the Xperia 1 III, so stacked ram is clearly preferable from a performance standpoint, at least with non-global sensors.
back in 2019 sony was embedding some type of memory in the pregius-s global shutter sensors, but it apparently wasn't done to increase the readout speed: https://www.sony.com/en/SonyInfo/News/Press/201903/19-023E/
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Jun 07, 2021 at 10:25 AM |
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