KMR said:Yeah, it's really neat how they're able to defy the laws of physics on all the other parts of the camera! When are they going to get around to it with lenses? (sorry, couldn't resist...)
Well, some of those aren't laws, just perceptions (like the infamous 'Moore's law' limit in computer chips - there are at least dozens of ways around it, whenever we get around to being able to manufacture them).
However, the wavelengths of visible light are pretty much fixed. The scale of the world is pretty much fixed. A few other variables like this sort of lock in half the equation and leave the lens designers without much room to play.
This, in turn, adds to the whole DOF problem.
Meanwhile, back in the day, I am sure cinematographers everywhere were cursing the lack of DOF on their cameras and hating film grain.
Now we pay extra for these 'features' to be added back to us.
It seems strange that we are deliberately crippling solid technology to make it look like it is as limited as the older stuff.