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Thread started 12 Nov 2014 (Wednesday) 15:20
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New Sony Sensor using Active Pixel Color Sampling

 
Camofelix
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Nov 14, 2014 07:54 |  #16

So does that mean we might be getting MF levels of color and sharpness ?


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Nov 14, 2014 07:57 |  #17

Is this a joke? The filters are moved over the sensor. So when you release the shutter, the little man in the sensor puts the red filters over the sensors, captures the output, then puts the blue filters over them, grabs the output, then puts the green filters over them, grabs the output, then the shutter closes? So the shutter would have to stay open three times longer than for a standard exposure? Maybe I'm missing something here.

How precisely is that a technological advance over the Foveon sensor that has no moving parts?


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gjl711
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Nov 14, 2014 10:12 |  #18

joedlh wrote in post #17271348 (external link)
Is this a joke? The filters are moved over the sensor. So when you release the shutter, the little man in the sensor puts the red filters over the sensors, captures the output, then puts the blue filters over them, grabs the output, then puts the green filters over them, grabs the output, then the shutter closes? So the shutter would have to stay open three times longer than for a standard exposure? Maybe I'm missing something here.

How precisely is that a technological advance over the Foveon sensor that has no moving parts?

I don't think we know the details. It could also be done by changing the photo receptors sensitivity to certain waveleangths, or it could be something completely different.


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Footbag
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Nov 14, 2014 15:42 |  #19

I've been reading about this, but I don't get how the filters will pass all of the wavelengths at the same time. If it doesn't, then are they actually gaining QE over the Bayer sensor.

I'm thinking it must pass all of the colors at one time, but have no idea how they do it. I would really like to know.

And for that matter why not just use a prism to split the colors? Maybe charging some exotic material allows them to split the colors via a prism?

I'm certain they want to overcome the disadvantages of Faveon. Losing signal with the deeper penetrating wavelengths.

Man, I just want to know how this thing works.


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Footbag
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Nov 15, 2014 15:44 |  #20

Ok... So it does actually move the color filters. But it still rejects 60% of the light because the receptors are always covered by a filter. The entire benefit appears to be the larger pixels and not having to interpolate. Those are big advantages, but I'm surprised that's the direction they took. It's literally a mechanical filter. They need 3 exposures per image. That's probably not the biggest hurdle to overcome, but I do see it requiring lots of reading from the sensor. Unless they think we can handle that type of bandwidth these days.

I like seeing them taking chances, but I think this had a disadvantage for every advantage it provides.

I am still waiting for someone to use a prism to split the light and microlenses to direct it. Or just a photomultiplier effect.

Link is on SAR. Can't post it from my iPhone.


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Canon_Lover
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Nov 15, 2014 16:58 as a reply to  @ Footbag's post |  #21

Apparently this tech has been around a while and is only used for video.
The SAR guy is kind of a crazy shill. He's all over the place. :)




  
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New Sony Sensor using Active Pixel Color Sampling
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