The new wallpapers that Apple includs with iOS 7 GM have a resolution of 744x1392px (as you can see here: http://d.pr/i/pcPQ). This is of course the resolution for the 4" screen of the iPhone 5, 5C and 5S. If you create wallpapers with a resolution of 744x1392px and use them unter iOS 7 while the parallax effect is activated, they shouldn't be upscaled :)
Still hoping to see guides for the dynamic wallpapers, would love to play around with those..
That works, but they’re using sub-pixel positioning for the parallax, so be aware that your wallpaper may still look less than pixel perfect as you rotate/tilt your iOS device around. Still, this is great news!
Edit: Tested on both lock and home screen. Same result. Also, remember that you can turn parallax off, if you’d prefer things were pixel perfect.
Related info: https://twitter.com/dlanham/status/383573665486761984
Thanks! Any idea what the resolution for a parallax iPad wallpaper on iOS 7 would be?
And if you choose to disable the parallax effect, go to Settings > General > Accessibility > Reduce Motion: On
Thanks for posting. So if I want to design some parallax wallpaper all I have to do is design to this size?