I have a MacBook Pro running Yosemite and my Photos Library is taking 235G of space so I want to back it up into an external hard drive and delete it from MacBook Pro. I am kinda new to Mac OS systems and never really understand how the Photos application works.
I have my iPhone backups on this same MacBook Pro and have also done picture/video imports via the Photos Library application.
The Photos application shows my pictures / videos from 2007 up to 2016.
But I am confused that when I get into Show Package Content of the Photos Library and then the Masters folder, I only see year folders of 2015 and 2016.
So, my question is: From where is the Photos Library pulling together all of my media files? As you know, the Photos Library software does not allow us to right click a picture or video and reveal in finder, which is very annoying.