apply_filters ( 'jp_carousel_localize_strings', array $localize_strings )

Notes

This filter allows you to filter the EXIF tags displayed in the Carousel view. New fields can be added like so:

function jp_custom_exif_info( $js ) {
	// Add tag to list
	$js['meta_data'][] = 'credit';

	// Add translation for tag
	$js['credit'] = __( 'Credit', 'jetpack' );

	return $js;
} 
add_filter( 'jp_carousel_localize_strings', 'jp_custom_exif_info');

You can also use the filter to redefine the tags that will be displayed by overwriting the list with a full array instead of appending an item like in the previous example:

function jp_custom_exif_info( $js ) {
	// Overwrite with a new list
	$js['meta_data'] = array( 'copyright', 'credit' );

	// Add translation for tag
	$js['credit'] = __( 'Credit', 'jetpack' );

	return $js;
} 
add_filter( 'jp_carousel_localize_strings', 'jp_custom_exif_info');