FLASH PHOTOGRAPHY BASICS

• Every flash photograph is two exposures in one.

• Fill flash can be used when subjects blacklist or side lit to eliminate silhouettes or shadows.

• Flash exposure is not affected by shutter speed.

• Flash illumination is dramatically affected by distance.

• Your camera measures ambient light and flash illumination separately.

• With automatic flash metering, the flash illumination is measured after the shutter button is pressed, and the flash output is adjusted accordingly.  

• Every SLR camera with a mechanical shutter box has a maximum flash sync shutter speed.  

• Harsh lighting, washed out subjects and red eye can be eliminated by using diffusers and light bouncing.

• It is possible to change the order of when the flash fires using, "Rear Curtain Sync".

• Removing the flash from the top of the camera help eliminate red eye and unflattering shadows.