View meta data in Photos

http://www.photometadata.org/META-Tutorials-Expression-Media

see also:

http://fotoforensics.com/tutorial-meta.php

You can also download this app for mac or windows:

http://www.sno.phy.queensu.ca/~phil/exiftool/

I uploaded a photo I took to the website below and it extracted all the metadata you see below:

http://regex.info/exif.cgi

All the below metadata can also be seen in Adobe Lightroom and other metadata viewers but the above site is free and gives you a good idea of how much info there is in side a photo you have taken.