From: Joachim (joachim@microdsi.net)
Date: 09/12/00-06:19:34 PM Z
The PR release on the CMOS technology referred to grayscale 4M but did not
discuss the downside as compared with CCD. It is intrinsic to all technology
that there will be trade-offs, and speed may well be one of them. There are
also potential film advances, such as the one announced by Agfa recently.
Meanwhile, our photography technology has advanced substantially in the 20th
Century, but it is still hard to beat some of the work done by artists with
uncoated lenses, a hat for a lens shade, and diamine developers. Aren't we
still using 19th century fixers? Joachim
> -----Original Message-----
> From: Sil Horwitz [mailto:silh@earthlink.net]
> Sent: Tuesday, September 12, 2000 5:59 PM
> To: alt-photo-process-l@sask.usask.ca
> Subject: RE: Advances in CCD to go with Canon
>
>
> At 2000/09/12 01:38 PM -0500, you wrote:
> >I believe Japan is forbidden to sell a CCD sensor in excess of 4M pixels,
> >national security issue. I have heard that KODAK has a 5 Million pixel
> >design that they are putting on the merchant market and for internal use.
> >These are the largest sensors I have read about lately.
>
> Spoke with a Kodak rep at the recent PSA Conference, and he
> explained that
> Kodak owns the CCD patents and licenses all other makers. I don't
> think the
> size problem is a "national security" issue, but Kodak's . The new sensor
> is CMOS, and uses a different principle than CCD (CMOS is
> transistor-related; CCD is a Charge Coupled Device which has limitations
> and is expensive to fabricate). From what I understand (the rep wasn't
> clear on this) the CMOS sensor has almost limitless resolution, but is
> slower than the CCD. We're all to hear lots more on this before long.
>
> Hard to keep up, isn't it? So why doesn't someone invent (or dig up some
> old ideas that couldn't be used as the technology wasn't previously
> available) a simple method for creating UV+ in exactly the light
> frequencies needed for alternative processes? It can be done, but no one
> has yet figured out how, as far as I know.
>
>
> Sil Horwitz, FPSA
> Technical Editor, PSA Journal
> teched@psa-photo.org
> silh@earthlink.net
> Visit http://www.psa-photo.org/
> Personal page: http://home.earthlink.net/~silh/
>
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