1). Keep this camera memory card way from any newly taken photos or new files.
2). Connect this card to your computer with a card Reader.
3). Try to restore your lost memory card photos back with a reliable card data recovery program, like
Its especial “photo” recovery mode can help you get back your wanted photos with ease.
4). Save and back up all restored photos on another drive or place in case of data loss.
Read more information of this tool here: http://www.4cardrecovery.com/
Note: Never format a camera memory card without data backup again.