Reposition the Light Sources

• Move the flash units further away from the camera. If you have a flash stand or a tripod with a flash shoe attachment, set the flash unit on the stand and reposition the flash unit. If you are also using an on-camera flash with a rotating head, point the flash head to an adjacent wall or to the ceiling. This turns the on-camera flash into a bounce flash, and light will reflect off of the walls and ceiling instead of firing directly above the camera lens.
  
  

Use Diffusers or Softboxes

• Attach flash diffusers or softboxes to the flash units. Diffusing the light sources will spread the light out over a larger area, reducing reflections. Light diffusion will also increase flash bounce, which reduces the harshness of shadows and glare.
  
  

In-Camera Nikon Red Eye Reduction

• Turn on the in-camera red-eye reduction flash mode on cameras with this feature available; all models in Nikon's Coolpix series have this feature. This mode will fire the flash once before taking the photograph, which constricts the subject’s pupils and reduces the chance of the red-eye effect occurring in the final image. Also, on Nikon models that have in-camera post-processing mode such as the Nikon's DSLR Dxxx series, apply the red-eye fix to the image in the post-processing menu.
  
  

Post-processing with Capture NX

• Nikon’s image processing program has a built-in red-eye fix tool. First, zoom into the image by clicking the magnifying glass icon and selecting the area of the image to zoom into. Click the eyeball icon in the top toolbar and click on each red eye in the photograph. Adjust the red-eye fix size by dragging the slider up or down.
  
  

Post-processing with Other Software

• If you don’t have Capture NX installed on your computer, you can use Windows Photo Gallery to apply a red-eye fix. Click the “Start” menu button, click “All Programs” and then click “Windows Photo Gallery.” Open the image and click “Fix” on the main toolbar. Click “Fix Red Eye” and select the red eye using the rectangular selection tool.