What You Do Not Know About Your Camera's Flash

We all know that flash is used in photography when light surrounding the subjects is insufficient. But for professional photographers, flash can be used in much more efficient ways than an amateur photography can ever imagine.

To better understand how flash is used, let us take a look at its history, background, and how it works.

Flash photography started out as a dangerous technology so many years ago. In the past, it was manually controlled, and a powder was lit by fire or electricity to produce a flash. Aside from being dangerous, it was also very difficult to use since it is not synchronized automatically to the shutter.

Today's flash units are very easy to use. There are automatically synchronized with the camera's shutter, so there is absolutely no need to worry about timing. The flash units use an electronic flash tube to create the flash.

Let us now discuss the two types of flash units that every photographer needs to know.

1. Internal flash unit

This type of flash unit is already built into your camera. Control is easy and possible through the menus of your camera. There are low end cameras that allow only the use of their built-in units, but others allow the attachment of an external flash unit. High-end cameras are better; they are the exact external flash unit attachments.

2. External flash unit

These are flash units that are usually attached through a slot and are connected through a cable. Each unit varies in strength, which is measured by how much light they can generate and how long it lasts. They also vary in mechanical characteristics if they are fixed or movable. No matter what characteristics they possess, all external flash units are electronically connected to the camera and are automatically synchronized with the shutter.

Setting your flash in automatic mode usually creates some problems. Most of the time, the camera cannot tell if the scenario needs more light, or if it needs none at all. So it usually makes the wrong judgment and gives out a flash when there is enough light or does not flash when there is insufficient light available. One of the most common problems this creates is the "washed out" photo.

A washed out photo occurs when the subject is too close to the camera which results in a photo with a too white or too bright subject. There are also instances in which the opposite of a washed out photo happens - resulting in too much detail. The flash creates shadows and light in areas that exaggerate the details.

Not only do you have to know how a flash is used efficiently, you also have to know the limitations. Flash units depend on the light they can produce and the range that the light can reach. It is important to place your subject at a distance that the flash can reach--not too near, and not too far.

If you want to take a photo of an object that is not within your flash unit range, then it is better not to use the flash at all. It will only trick the camera into setting a high shutter speed, resulting in very dark photos.

When taking photos of shadowed objects during the day, it is best to use the "fill-in" mode of your camera. The flash will fill in the shadowed areas of the subjects without being too strong to wash out the entire photo.

You can also use the fill-in flash when taking a photo against the sunset. Without the fill-in flash, the objects will appear as a silhouette.

The knowledge you now have with flash units can improve your skill in photography. Although most people prefer the automatic mode, experimenting with your flash unit can yield better results. The flash unit is a very useful tool for your camera that can be used to greatly improve your photos.