How do I copy photos to an external hard drive?
I've just started using 'Photo' on my new Mac and I've managed to get a load of photos into it - but firstly I can't locate them? And secondly I want to copy them to a hard drive for back up but can't work out how? So these are my questions -
1) where are all my photos stored and why can't I see them
2) how do I copy them to an external hard drive
(PS. I'm on Yosemite, and I'm NOT using icloud)
Thanks
MacBook Air, OS X Yosemite (10.10.3)