NextGEN allows you to import meta data from all of your images, and also provides an option to display your meta through captions.
IMPORT META DATA
By default, the meta should be imported automatically upon upload, but to ensure it all is imported or if you add a new image, you can select 'import metadata' through the Manage Gallery area here:
Steps to Import:
1) Go to Gallery >> Manage Gallery > [select gallery to edit]
2) Select all or individual images to import
3) Select in bulk actions dropdown 'Import metadata' and then click 'Apply'.
When the process is complete, be sure to save changes!
Titles and descriptions will appear in the caption area of each gallery. Camera data will appear within the Imagebrowser Gallery with the 'imagebrowser-exif.php'' template applied, see:
Learn how to create/add a gallery here: