Let your phone become a perfect smart magnifier or smart microscope. Handy! Easy to see small text. You can also use it as a simple version of the skin quality check device. (Skin detector) [Quick Magnifier Camera Guideline] When you start camera, the APP will set the magnifier zoom to middle value. You can drag zoom seek bar to let magnifier zoom in/out. (Or use two fingers to let magnifier zoom in/out) You can use the following method to change other settings: 1. Press preview Region to focus. 2. Drag red seek bar to change screen brightness. 3. Drag pink seek bar to let magnifier zoom in/out. (Or use two fingers to let magnifier zoom in/out on preview screen) 4. Press the light button to enable light. 5. Press the pause/resume button to pause/resume preview. (freeze image) Then double click the freeze image to let magnifier zoom in/out. (Or two fingers to let magnifier zoom in/out) 6. Press the Fx button to enable hue effect. After enabled, you can swipe Up/Down to change hue or swipe Left/Down to change brightness. [Others] 1. You also can take a picture if you wish. 2. When focus, the focus area of the image please select the best color change much. If you click on the region are biased in favor of a single color, it is not very good focus. In addition, the lens remains clear, wipe clean the glass will be better focus. And turn on the light also can get a better focus. 3. When camera focus, please don't let the camera's lens be too close to an object. It may be unable to focus. (According to the camera's focal length will vary)