FAQs | Exolens Yes, ExoLens allows full access to the headphone jack. The Telephoto lens refocuses more than the normal iPhone. The telephoto was designed to have a narrower depth of field. This means that the subje Yes, ExoLens allows full access to the headphone jack. The Telephoto lens refocuses more than the normal iPhone. The telephoto was designed to have a narrower depth of field. This means that the subject of your image will be in perfect focus while other objects will appear out of focus. This makes for very compelling portraits and zoom photos.