Nikon SB 11 instruction manual Red Eye~-I

Page 23

"RED EYE~-'I-----

"Red eye" is a phenomenon in flash photography where the center portions of the subject's eyes appear as bright red orbs in color photographs (or white in black and white pictures). This is a result of the light from the flash illuminating the retina directly. If the subject looks straight into the lens and there is little or no ambient light, the pupil is wide open, making the retina clearly visible in the picture.

To avoid "red eye," you can take any or all of the follow- ing precautions:

1.Ask the subject not to look directly into the lens when the picture is taken.

2 . Remove the flash unit from the camera and hold it as far away as possible froin the camera by using a sync cord .

3.Increase the room's overall illumination to reduce the opening of the subject's pupils.

23

Image 23
Contents Nikon Nomenclature Page Contents Foreword Tighten the screws to secure Open the battery chamberClose the battery chamber Speedhght Wheel completely Attach the bracket @ toAttach the .bracket to Rotate the flash head CD To the normal shooting position Attach the sync cord@Plug in the sensor Set the lens aperture ring to an appropriate Number NizationSet the exposure Calculator dial Set the shooting mode selector Take the picture Controls in Detail Tilting Flash Head CD Controls in DetailWide-Flash Adapter SW-3 CD Example Exposure Calculator DialFor Automatic Operation For Manual Operation At the M Manual Position Sensor Unit SU-2 CDAt the Auto Positions At the S Slave PositionOpen-Flash Button @ Ready-Light @Sync/Multiple Flash Sockets External Power Terminal @Nikon Camera Proper synchronization speed sec Synchronization ChartSync Cord Sell Sync Cord SC-15 TTL Remote Cords SC-12 and SC-23Sensor Remote Cord SC-13 RED EYE~-I \ \ Page Optimum Battery Performance Light output control Power sourceDimensions WeightNlko