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    tmqvist's Avatar
    iPhone Nanite

    1 Posts

    Default iPhone Design - image dpi and video formats.

    First Question relates to Exporting graphics for iPhone (apps).
    The iPhone 5 has a screen pixel width of 320 and a ppi of 326.
    Why is the current method of exporting for retina display to just make the image twice the size?
    i.e. A table header graphic might be 320px x 120px 72dpi - For retina display this becomes 640px x 240px 72dpi
    Why not export 320px x 120px @326ppi ? Would that not display the "crispest" ?

    Second Question.
    What is the best ratio and file format when creating video for iPhone and/or iPad ?
    1920 x 1080 at 720 ppi and let the iPad/iPhone work its rescaling magic, or get as close to the exact screen dimensions/ppi from the initial shoot?

    If I made a mistake with any mistakes, jump in, chop me up, i'm not sensitive I just want the answers.

    If this is not the right forum for these questions let me know, if possible please direct me to the correct one.


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