Actually, there are quite a few systems using LN cooled sensors in use
in industrial and gov't applications. I had the chance to look at
some of thse a few months ago. Quite impressive results...
Packaging was a lot smaller than I had anticipated.
Indeed liquid Nitrogen cooled
The scientific ccd cameras I have seen have used a
thermoelectric cooler (peltier) with circulating water
(maybe with glycol). This method is a lot easier to
implement than the liquid nitrogen approach :-)
Antti-Pekka
---
Antti-Pekka Virjonen
Computec Oy, Turku Finland
Gsm: +358-500-789 753
check the power consumption. it's a little high.
Herb
- Original Message -
From: Otis Wright rusty.@att.net
To: [EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 1:14 AM
Subject: Re: DSLR/PC plateau?
Actually, there are quite a few systems using LN cooled sensors in use
- Original Message -
From: Otis Wright
Subject: Re: DSLR/PC plateau?
Scott Nelson wrote:
You can take care of thermal noise (to a point) by cooling the sensor
with something like liquid nitrogen - not that this is very practical
unless you are using a telescope. At a given
Quoting Chaso DeChaso [EMAIL PROTECTED]:
I think the above analysis is overly reliant on the
idea of the job as equivalency to 35mm (or Med Format)
traditional film photography - equivalency in a
variety of ways including not only resolution and such
things.
[predictions snipped]
You may
Interesting question: My DSLR becomes obsolete. Therefore it's not
worth much. Do I bother to sell it or not? Will there be any market
for these obsolete DSLR's?
Steven Desjardins
Department of Chemistry
Washington and Lee University
Lexington, VA 24450
(540) 458-8873
FAX: (540) 458-8878
On 14/1/04, [EMAIL PROTECTED] disgorged:
Interesting question: My DSLR becomes obsolete. Therefore it's not
worth much. Do I bother to sell it or not? Will there be any market
for these obsolete DSLR's?
Please define obsolete, in this context.
There will always be a market for used camera
On 14 Jan 2004 at 10:01, Chaso DeChaso wrote:
Basically, whenever you think these technological
changes are levelling off, usually you just aren't
being creative or imaginative enough. However, most
of the companies out there will take up the slack and
do the creative thinking for you.
Hi,
some quick thoughts late in the night follow...
One quick example would be when something happens
(relatively soon) such as sensors becoming not only
way higher in resolution but also much more
light-sensitive than film. Among other things, this
Well, light sensitivity would be nice,
On Wed, Jan 14, 2004 at 10:01:21AM -0800, Chaso DeChaso wrote:
I think the above analysis is overly reliant on the
idea of the job as equivalency to 35mm (or Med Format)
traditional film photography - equivalency in a
variety of ways including not only resolution and such
things.
One
PM
Subject: Re: DSLR/PC plateau?
One quick example would be when something happens
(relatively soon) such as sensors becoming not only
way higher in resolution but also much more
light-sensitive than film. Among other things, this
would allow both digital-only (non optical) zoom and
total
and there is a fixed amount of thermal noise that can't be
gotten around.
Herb
- Original Message -
From: Chaso DeChaso [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, January 14, 2004 1:01 PM
Subject: Re: DSLR/PC plateau?
One quick example would be when something
and there is a fixed amount of thermal noise that can't be
gotten around.
Herb
- Original Message -
From: Chaso DeChaso [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, January 14, 2004 1:01 PM
Subject: Re: DSLR/PC plateau?
One quick example would be when something happens
(relatively
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