an earlier post got me thinking. and no I'm not smoking anything - just more of a random thought
With camera sensor size and capability pretty much following Moore's Law - I wonder if we will reach a point where the capacity of the sensor technology will meet or exceed the light transmission and resolution capacity of our lens technology.
It's already apparent in some of the newer high MP DSLR's that the sensors resolve more detail than the lens is capable of delivering. As the sensors continue to double in capacity - at some point will even "L's" give up the ghost?
(most) Lenses transfer light to the sensor as an image through refraction. glass itself has a finite transmissivity,(sp?) and each time light is bent, it induces artifacts and each glass it passes through reduces its intensity. Would it - in theory - then be possible to engineer a sensor so loaded with photosites, and so sensitive, that putting glass in front of it actually reduces it's effectiveness? a point where we simply put a protective cover over the element and simple use digital compression as a "zoom" factor?
Or will we hit a "wall" where the sensor density increases are irrelevant and the only factor becomes light sensitivity?
Or is it possible that the development of "super' glass will become the next evolution once the sensors hit the limits of digital technology Personally - I'd love to see Moore's law applied to lenses - within 2 years we could have a 70-200 F1.4 IS half the size and for a quarter of the price of the current F4. sweet....