Use single values added by field-collection module in Views?
I've recently done this before. It's really easy, you can create a Node type view. Then you just add the field collection field that's attached to your node as a Relationship, in your case "Content: Gallery and caption".

Then after you've added the relationship, when you click "Add" on the fields, your field collection fields will be available to select. Their names will start with "Field collection item: *". 

If you're using Node reference field inside your field collection then you need to add one more relationship. See this issue and #2 comment for solution.