2. Make sure the clip connect center is consistent with phone´s camera center;
3. Open phone camera, to see whether it shows full screen view, if not, gently moving focusing handle up and down, left and right, to make sure lens center and camera center are in one line, and then you can ger clear photos;
4. If the camera of the phone cannot take a clear image, you may manually fine-tune the focus by adjusting the focal ring which is located in the front portion of the lens. For long distance focus(e.g. focusing to infinity), turn the ring clockwise until the image is clear. For close focus, turn the ring anti-clockwise until the image is clear.