Originally Posted by Tallest Skil
Why not? “Focus after the fact” is a great innovation. I don’t mean lytro the company, I mean lytro’s technology.
Because right now, and I've seen no evidence so far that this will change, you have to divide the resolution of the sensor by 16 times to get the resolution of the picture. That means that this 40MP sensor gives a resolution of just 2.5MP. I don't know about for you, but that's way too low for anything other than Facebook pictures. In order to get a decent resolution image, you will need a sensor of at least 150MP, for a result of 9.373MP. How far in the future will we be before we can get sensors with that resolution? And even if we can, lenses won't be able to deliver that resolution in any decent sized sensor, because the light circle will be smaller than the wavelength of visible light.
There are practical limitations here that have to be looked at. So for low Rez, it's fine, but for a high quality picture, resolution plays an important role. And we're not talking about a megapixel race here, because in practice, everyone has reached the 20MP+ level in quality cameras. But they're doing that with 20MP sensors. To equal that, we would need a sensor of over 300 MP, which for anything other than extremely expensive photographic purposes will be well out of the price range of anyone. And that would have to be a very large sensor with a correspondingly large, expensive lens.
So I don't think this is the future of photography any more than stereo photography was thought to be going back to the late 1800's, and every few decades after that. And I'm not old fashioned either. In 2000, I wrote an article for Kodak's monthly magazine Lab Notes, which was sent to all the photo labs that used their products, that by 2010, film would effectively be dead. Kodak told me that they had a greater response to that article than any other, mostly negative. But, two years later, they said the same thing. I was also one of the first to have a commercial photo lab go digital, when in 1988, I bought the Crossfield System, for what was then a whopping $250,000. That consisted of a drum scammer, a Mac IICi, and pre Photoshop software. My partner thought I was crazy.