Foveon

Loki

Loki

Veteran
I've known about this for quite sometime, but never really thought about it in depth until now..

Anyone know what is preventing this technology from being used in motion picture cameras?

http://www.foveon.com

Seems like a step in the right direction.. but something has to be preventing this tech from taking off.. either marketing.. or technical issues..

anyone know?
 
I think they fail to address 3ccd cameras. They show digital only with one chip (like Cmos and one chip ccds) but fail to recognize that their product 'benefit' is the benefit of professional 3 chip cameras... like HVX, DVX etc.

I'm not an engineer, but I thought that is why we had 3 ccd's for better color capture.
 
I might be wrong, but haven't Foveon been claiming this for a long time now (3 layered design)? but no actual working camera?
 
You're missing the point here..

They are using layered Silicon to capture a full color spectrum.. there would be no need for a prism to split the light to 3 CCD's.

They have a full pixel array for each color, stacked onto each other.

If this sensor is so revolutionary, I am wondering why it hasn't been used in more products.. from the looks of it.. it would be a the perfect between CMOS and 3CCD... gotta be a catch in the fine print..
 
Anhar Miah said:
I might be wrong, but haven't Foveon been claiming this for a long time now (3 layered design)? but no actual working camera?
Click to expand...

I guess nobody is actually clicking on the link.. They have a fair bit of info on the site.. as well as links to many digital cameras using the chip.

So my question remains..
 
maybe the DSP power needed to handle full video rate is not possible currently, or to the Foveon chip at the moment can't output at video rates...

I don;t know I'm just speculating
 
Anhar Miah said:
maybe the DSP power needed to handle full video rate is not possible currently, or to the Foveon chip at the moment can't output at video rates...

I don;t know I'm just speculating
Click to expand...

I think Anhar is right - that chips simply can't fire at the needed rates for video as far as I know.

This was brought up recently over on ScarletUser - Graeme responded with the following info: http://www.scarletuser.com/showthread.php?t=781&page=5
Graeme Nattress said:
The major issue with the foveon is that silicon just isn't a good colour filter. That means de-noise is part of their RAW conversion algorithms by necessity, and that the matrixing needed to get good colour amplifies what noise there is.

That they can only achieve a low resolution means that they avoid the necessary (necessary according to me and Foveon themselves) OLPF to cheat some extra resolution. The end result is a very "interesting" image, that may be immediately appealing to some, but also can be very "fickle" and has some strong artifacts.

Graeme
Click to expand...
 
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