sharing a Dropbox we are using this recipe to automatically add new iPhone camera roll pics to our own folders in Dropbox
If
New photo added to album
This Trigger fires every time a new photo is added to the album you specify.
Then
Add file from URL
This Action will download a file at a given URL and add it to Dropbox at the path you specify. NOTE: 30 MB file size limit.
Explore more great ways to automate iOS Photos and Dropbox