Scott Nelson wrote:
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.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 temperature, smaller pixels and higher iso will result in more thermal noise.
Otis Wright
Lens performance will always be limited by diffraction effects, so hold
onto your 300/2.8.
What can be counted on (IMHO) is that sensors will continue to get larger and cheaper.
-Scott
On Wed, 2004-01-14 at 19:37, Herb Chong wrote:
only in science fiction. you can't make a lens that can stand that much magnification 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 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 depth of field. Software after the fact would
allow you to select the focal plane and bokeh. When
something like this happens all of the sudden everyone
will "need" to do it and almost everyone apart from me
will be saying "Do you think I am going to lug around
a 300mm f/2.8 when the guy next to me can do all the
same stuff with a 50mm f/1.4..that's CRAAAAzy!"
