I uploaded my photos/video (80 GB) library last week and everything is available on iPad iPhone and Mac. Those photos came from different cameras, including my nikon camera. What I am trying to understand is how to reach the originals who are uploaded to the cloud. My mac settings are to download all originals to the mac. but when i drag a photo to the desktop for example (in the Photos app) my photo goes from original 8 Mb to approx. 2 Mb. If i now log on to iCloud with safari and go to the same photo and download it to my mac its the original 8 Mb. How do i reach photos in original size/resolution from the photos app?