« on: August 29, 2012, 01:30:09 PM »
Well, a few things. Most importantly, for many that want larger MP, their end usage is not a computer screen; it's a much larger, higher res print version. Whether its a billboard, a poster, a gallery print, etc. There, the difference between 22mp and 36mp can be a big difference, especially when you are talking dimensions of feet, not inches. Likewise, there are some that want the ability to crop with a great degree of latitude; a 36mp can be cropped in half and still have 22mp resolution (that's not to saw the pixel-level IQ holds up, but, its true in literal resolution).
So, if you're end game is just putting images on your website or facebook and never printing, then yes, 22MP is brilliant because it allows focus on other elements. You can get a faster frame rate, better high ISO handling, smaller files, etc. Heck, in that realm, a 12mp image is even more ideal. In reality, most modern displays can't do much better than 4mp at 100% (like my Mac Cinema Display). Of course, viewing an image at 100% is never as sharp as at 50%, or 25%, and so those large sizes are nice for that reason. Plus, the limitation on image size isn't a display problem, its an image server/bandwidth problem. There's a reason it took most social media sites forever to display images any larger than like 800x600.
Do I think our monitors could take full advantage of a 40mp image over a 22mp? No. But, I do think they have the resolution for us to notice a difference between the larger and smaller files