What Exactly is the Exposure Triangle?

Sep 3, 2012 by KnabjianStecher303

One of the most important areas of photography if you’re looking to go beyond a point and shoot video camera such as the Nikon Coolpix S6150 with its Nikon EN-EL12 battery, is recognizing the exposure triangle. Understanding this is the key to constructing a solid foundation in photography, and producing some excellent innovative shots. It is the relationship between the aperture, shutter speed and ISO, and just how a modification in one will certainly influence the additional 2.

To gain an understanding of the principle, it’s simpler to make use of an analogy, so consider a window on a house with curtains, and yourself inside with a pair of sunglasses. This is your video camera.

The aperture is the curtains, if they are open, they will certainly let in even more light, if they are closed, they let in little light.

The shutter speed is just how long these curtains are open for.

The ISO is you, and just how sensitive you are to the light being available in, on a video camera it is your sensing unit.

Let’s state that you prefer a specific quantity of light into the room, say a quantity of 10. You have your sunglasses on, and set to have your curtains half open for a duration of 1 second. This gives us 10.

Next, we want the same amount of light (10), but for whatever reason, we only prefer the curtains to be open half the time, but our sunglasses still have to be on. As a result, to offer this same amount of light, our curtains will need to be completely open.

For the next circumstance, the sunglasses should be off, but we still want the same quantity of light to enter the room. For that reason, we can easily either alter the amount of time the curtains are open for, the amount the curtains are open, or both.

The video camera is the same, and by adjusting these 3 elements, we can easily control how light gets in the camera and hence the results.

So if we still wish the same amount of light in, why the need to change the configurations? Well, the straightforward solution is it depends on the sort of photo you wish to produce. If you wish to take an action shot of a sport, or dog jogging, then you will certainly wish a very fast shutter speed to plainly grab the action. Because your shutter speed is quickly, to obtain enough light into your video camera to take the shot, you will certainly have to set your ISO according to the conditions (if outside on a bright day, then you require a reasonable ISO number, this indicates the sensing unit isn’t greatly reactive to light, which is exactly what you prefer for outside photography. Therefore, to get the light you need, your aperture has to be open more to permit the light in.

In contrast, if you are photographing at night, you will certainly need a high ISO number to make your sensor susceptible to light, your aperture to continue to be open (as your eye would), and undoubtedly your shutter speed to be sluggish, possibly a few seconds.

Of course, there’s a great deal of settings you can easily set your camera up depending on the light and exactly what you are aspiring to do, but this exact same logic puts on every video camera, no matter what; a top of the range DSLR, or straightforward point and shoot like the Nikon Coolpix S6150 with its Nikon EN-EL12 battery pack.

If you find yourself in need of a Nikon EN-EL12 this one is available on Amazon.com and I highly recommend it.