Flash Photography Basic Concepts

- Every flash photograph is two exposures in one

- Fill flash can be used when subject is backlit or sidelit 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 subject and red eye can be eliminated by using diffusers and light bouncing

- It is possible to change the order of when the flash fries using " Rear Curtain Sync "

- Removing the flash from the top of the camera helps eliminate red eye and unflattering shadows