Most cameras will sync with flashes at speeds up to 1/250th of a second.
Today's digital Single Lens Reflex (dSLR) cameras have the ability to adjust their sensitivity to light (ISO) as needed when it starts to get dark. However there are some circumstances when you will want to use an external flash to add light to a shot. When shooting with an external flash you have to make sure you shooting at shutter speed that will synchronize with your flash, otherwise you will end up with extremely underexposed photos.
Instructions
1. Install a fully charged battery and memory card into your camera. Any time you are heading out to shoot, always make sure you batteries are fully charged and you have extra memory cards.
2. Install new batteries into your external flash. If you use your flash a lot you may want to consider investing in rechargeable batteries.
3. Attach the external flash by sliding it onto the camera's hot shoe. Secure the flash in place by screwing the locking ring on the base of the flash.
4. Turn the camera on, and select the shutter priority exposure mode. Depending on the make of your camera, shutter priority will be designated with "S" or "Tv" for time value if you are shooting with a Canon camera. Set your shutter speed to 1/250th of second or less. This is the most common maximum shutter speed for digital cameras. Some DSLR's will sync at 1/500th of second, but most will sync at 1/250th of a second or less.
5. Turn the flash on and when the ready light is on, look in your camera's viewfinder. You should see a small lightning bolt indicating a flash is attached.
6. Hold the camera to you eye, compose the scene and take the picture.
Tags: external flash, 250th second, shutter speed, will sync, your camera, 250th second less, fully charged
