Let me start off with ... confusion. I did a recent day trip to a local archeological site and took a lot of photos. These were all UHD photos. Here is the issue and I don't know if it a limitation of iOS9 or my iPhone 6S+... In standard view both my iPhone and Note 5 display the photos very well. However, when I zoom in... The iPhone will only allow the viewer limited zoom capability. See the examples below. These are the 6S+ and Note 5 standard view. This is the 6S+ and Note 5 max zoom. Anyone know what the issue on the iPhone is? I was able to recreate this limitation with a iPhone 6 Plus. This really annoys me that Apple is potentially limiting great photo viewing. Intentionally. Appreciate any explanations.