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beamish

the future of CCD is here ??

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Hmm, interesting, there's some comparison with bayer filtered cmos chips on wiki.

Foveon X3 sensor - Wikipedia, the free encyclopedia

Be interesting if the three colours could be accessed and processed separately though.

What we REALLY need, is a chip that has narrowband filters built in and can capture three or four emission nebulae light at once!

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Dya not think you could split the RGB in processing as you could with pics ATM and take it from there ?

I was quite taken with the idea of 3x layers, should certainly up the sensitivity over a bayered chip surely. Be very interesting to see if this idea is adopted further

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Certainly looks good - would mean that there is no loss is resolution when using narrowband filters - you would still get 15mpixel when using Ha for example. Would love to see a cooled CCD Astro cam using this sensor.

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I've mailed Foveon about their X3 3 * +14MP sensor 2 months ago and they shared this link with me. Google then gave me this pdf.

It's not much but it's a start :D.

EDIT: forgot to give you their exclusive dealer for scientific equipment => Alternative Vision.

Edited by Geys1987

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Certainly looks good - would mean that there is no loss is resolution when using narrowband filters - you would still get 15mpixel when using Ha for example. Would love to see a cooled CCD Astro cam using this sensor.

I'd like to think so

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£6k for the camera body with a 46 megapixel 24×16mm APS-C sensor but only 4,800×3,200 pixels (x3) :D

Edited by Photosbykev

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Aye not cheap ...and I certainly won't be getting in the short queue to buy one but it's the technology that intrigues me.

There's always this that Geys referred to

FoMOS Camera

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There are EMCCDs, sCMOS, Exmor back illuminated CMOS and so on. The only problem with them is that they cost insane ammount of money :D With EMCCD you can do few-sec exposures instead of many minutes, but it will cost $12K and the sensor won't be big - check this out: http://junior-ccd.fn-f.de/ :p

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I started a thread on Foveon chips a couple of months ago. The bottom line seems to be that they have high dark current (but no-one has tried to cool one), about 50% of the photosite is taken up by electronics and so the efficiency is reduced (but probably still better than Bayer RGB), and there is significant cross-talk between the colours (do we care?).

NigelM

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Well we have OLED screens, how long until we get organic sensors?

We already do :D

James

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