iPhone Design - image dpi and video formats.

tmqvist

New member
Oct 18, 2012
1
0
0
Visit site
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.

Cheers
 

Trending Posts

Members online

Forum statistics

Threads
260,363
Messages
1,766,554
Members
441,240
Latest member
smitty22d2