Two DSLR with a Kodak CCD sensor

Started 11 months ago | Discussions thread
SQLGuy
SQLGuy Forum Pro • Posts: 11,300
Re: Two DSLR with a Kodak CCD sensor

Mescalamba wrote:

Not that much "Kodak" CCDs. I mean, CCD itself is made by them, but color array is not. Olympus one on first glance has issue with green/blue channel, basically looks a lot like original 1Ds (Canon).

645D has much more modern CFA so color separation is okay, still subpar, but okay.

Compared to 645 from Kodak (Pro H or C and so on) they seem colorwise very weak. Same goes for SLR/n vs Kodak made CCDs (but not CFAs).

Magic of Kodak wasnt that much about sensor itself, but about CFA and very specific tweaking of CFA which no manufacturer today even attempts.

CCD or CMOS didnt actually matter as SLR/n is actually CMOS and still colorwise one of most pleasing to look at (not saying accurate :D).

Leica had Kodak sensors inside too.

M8 and 8.2 is Kodak CFA made for Leica, DMR is similar. Downside is that M8 and M8.2 needs extra IR filter and bit of trick to output 16-bit images like DMR (sensors are otherwise the same .. electronics probably not that much, but who knows, M8 was intentionally crippled for 8bit output, even while internal parts are 16bit).

Not saying that Kodak sensors are bad, but most stuff with those sensors wasnt really Kodak. Best example would be Leica M9 which did have Kodak sensor, but colors are completely different (closer to Fuji Velvia than anything else).

Interesting. I had always thought that the CFA was applied at the fab as part of the sensor production process. You're saying, IIUC, that Leica, Olympus, and Pentax got bare sensors from Kodak, with no CFA or microlenses, and then installed those themselves. Is that correct?

On a sort-of related note, my 460c requires an external IR filter since the sensor doesn't have a cover glass at all. Most of the DCS cameras seem to be similar in this regard, using an on-lens or clip-in in-body hot mirror. I'm guessing that this is because there just wasn't room in a converted film camera to have a hot mirror on the sensor stack and still clear the shutter. Just as there wasn't room to fit a full frame sensor, even if they had had one available at the time. Kind of explains, also, why nobody have ever been able to offer a practical full frame digital back for film cameras...

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A7R2 with SEL2470Z and a number of adapted lenses (Canon FD, Minolta AF, Canon EF, Leica, Nikon...); A7R converted to IR.

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