This app allows you to perform a range of beauty touch-ups, enhancements, and corrections from your mobile device. If you prefer to edit your photos on a smartphone or tablet, you can use the YouCam Makeup app rather than the PhotoDirector desktop program. If you have followed these steps and still notice red-eye in your photos, it may be easiest to remove the red-eye in post-production rather than trying to prevent it. If you’re using a camera with an external flash, you can try moving the flash away from the lens to change the reflection angle.
Separate the lens and the flash: Red-eye is most noticeable on cameras that have the lens very close to the flash, such as compact cameras. As a result, less light can get into the pupils, reducing the red reflection. This setting sends the flash twice, giving the subject’s pupils time to constrict before sending the second flash and taking the photo. Use the red-eye reduction setting: Many digital cameras come with a red-eye reduction setting that you can turn on to minimize red-eye. Instead, asking them to look to the right or left of the camera can change the reflection angle, preventing the red color from appearing over the eyes. Ask your subject to avoid looking directly at the camera: Red-eye is most noticeable when a person is looking directly at the camera, as the light from the flash can reflect directly back to the camera. Turning on a light can give the pupils a better chance of constricting when you take a photo with the camera flash, leaving less room for light to bounce off the fundus and appear red. 
Turn on a light: When you take photos in a dark room or outside at night, your subject’s pupils have likely expanded to accommodate the dark setting.Here are a few tried-and-true ways to avoid red-eye:
Once you understand why the red-eye effect occurs, you can also begin to understand effective ways to prevent this effect from showing up in your photos. Effective Ways to Prevent Red-Eyes in Your Images
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