Flash Photography Basic Concepts

Flash Fact #1
- Every flash photograph is two exposures in one

Flash Fact #2
-Fill flash can be used when subject is backlit or sidelit to eliminate silhouettes or shadows

Flash Fact #3
- Flash exposure is not affected by shutter speed
flash exposure and the effective range of your flash unit will be affected by aperture and iso

Flash Fact #4
- Flash illumination is dramatically affected by distance

Flash Fact #5
- Your camera measures ambient light and flash illumination separately

Flash Fact #6
- With automatic flash metering the flash illumination is measured after the shutter button is pressed and the flash output is adjusted accordingly.

Flash Fact #7
- Every SLR camera with a mechanical shutter box has a maximum flash sync shutter speed.

Flash Fact #8
- Harsh lighting washed out subjects and red eye  can be eliminated by using diffusers and light

Flash Fact #9
- If it is possible to change the order of when the flash fires using rear curtain sync

Flash # 10
- Removing the flash the top of the camera helps eliminate red eye and unflattering shadows