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.
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!" >
