I understand that we live in a culture where we constantly exposed to exciting leaps in technological achievements, but shouldn't we be a little more pumped up at the fact that the 5D is now going to be outfitted with a FIFTY megapixel sensor!?!? I know the rumour mill has hinted at this for several months if not years, but wow - it's happened! The transition from the mark 2 to the mark 3 gave us one, measly megapixel jump. This time Canon has blasted ahead and not just skipped the 30's, the 40's even, and went straight to FIFTY. My first camera was 3.34 megapixels way back in 2001. I'd just like to officially say that I'm impressed!
However, after having said all of that, in the real world, I'd hate to have to work with 50 megapixel files on a regular basis. I have a fairly fast raid setup for my work files and 22mp images are rather slow. And let's face it, the average Joe is not regularly shooting for billboards. And I've yet to have a client actually want a 40"x60" canvas print.
Can someone tell me a low pass filter and why it is so significant to warrant a completely separate camera without a low pass filter?
I wouldn't be surprised if these latest models are not much better than the current 5D with DR and ISO. There is talk about better color rendition. I think this thing is going to be an in studio beast. The 5D IV will have a more reasonable sized sensor and will likely include more gains in DR and ISO than these models. It will be more of a general purpose camera and is expected later this year.
low pass has to do with moire. as resolution increase, the need for low pass decreases.