Flash Photography Basics

• Every flash photograph is two exposures in one
• Fill flash can be used when subject is backlit 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 helps eliminate red eye and unflattering shadows