Written by It’s a common question and there are several reasons. In the end, DNG is not really an impediment to your mobile photography but rather a powerful option that will almost always improve the results you get from your iPhone……provided of course you have an understanding of the core concepts and don’t mind doing some post-shot editing.
Buy Ultimate iPhone DNG from the iBooks Store:
https://itunes.apple.com/us/book/ultimate-iphone-dng/id1274334884?ls=1&mt=11
Check out the video below for some inside info in DNG.
iPhoneRAW 