If iPhone apps like Instagram and Camera+ aren't producing photos up to your standards, there's a new title that might be worth checking out. 645 PRO, by Michael Hardaker, describes itself as "the photography professional's iPhone camera."
Loaded with tons of high-end features like a real-time ISO and shutter speed reader, and a live histogram, the app promises unparalleled image quality. It even claims to produce "developed RAW" TIFF files and "lossless" JPEG images...