Originally Posted by candre23
I have to agree. With a 50" set, you're looking at about the same dot pitch as a 27" 1080p panel. Much smaller and you won't be able to make out individual pixels easily, which you need
to be able to do for productivity purposes. With 4k resolution, I wouldn't want anything smaller than 46". Less than that and you'll be squinting to read text.
Well Windows 8 does support scaling at 100/125/150% (previous versions of Windows did not handle scaling well) so a 30" 4K monitor would actually be a reasonable choice. (4K at 30" = 147 PPI)
At 50" a 4K monitor is roughly equivalent in resolution to a typical desktop monitor (88 PPI) so you should be able to use Windows at 100% without any trouble.
Once you start going any larger than that, you run into problems with pixels getting too large, and if you go any smaller than 30" you are going to have problems in Windows. (it does not handle scaling above 150% all that well)
However you would actually be best at 22" rather than 30" in OS X, as it only offers 100/200% pixel-perfect scaling options. At any other scale factor, the image is rendered at 200% and then downscaled which produces a soft image.
This is why I actually want to see adoption of 8K sooner rather than later, as it will allow for "High DPI" at sizes larger than 30"