Understand the exposure compensation

Most DSLRs offer the exposure that lets you adjust the exposure measured by the camera meter. But what does that really mean and how can we apply it in the practice of photography?

Read the answer to the question to know: What is Exposure Compensation?

What is the exposure?

You - when you look at your camera, you will find a button or a menu with a little + and. This is the exposure compensation button. Pressing a line graph, with numbers from -2 to +2 marks (or sometimes -3 to +3) to open in increments of 1/3. These are the EV numbers. With these numbers, divide the camera more light (exposure compensation) or less light (negative exposure compensation).

What does this mean in practice? Well, say that they gave the camera meters a reading of 1/125 (shutter speed) to f5.6 (aperture). If you in the exposure compensation dial 1 EV, the counter opening an aperture f4 opens. This means that you. Actually revising the exposure The situation is, when a negative EV scores reversed.

Why use EV compensation?

Most people will ask at this point why they want to use the exposure compensation. The answer is simple: There are some times when the exposure meter of the camera can be cheated. One of the best known examples of this is when there is an abundance of light around your subject ... for example, if a building surrounded by snow. Its probably DSLR tried to expose it to light through the aperture and a faster shutter speed. This will result in the main subject is underexposed.

The dial in exposure compensation, ensures that the subject is correctly exposed. And be able to do this in a third step, hopefully you can avoid the rest of the image is exposed. In turn, this situation may be reversed, if there is a lack of light.

Bracketing

Sometimes I use bracketing an important opportunity for each shot, the difficult lighting conditions has. Bracketing simply means that I am on the positive exposure compensation a shot in the recommended count of the camera, with negative exposure compensation, and the other. Many DSLRs also have a AEB, automatically takes three shots with a click of the shutter function (AEB). It is important to note that these are generally -1/3EV, EV and 1/3 EV, although some devices allow you to specify the set of positive and negative exposure compensation.

In essence, the exposure with the effect of change in the ISO of the camera can be compared. Since the ISO mount increases the image noise, exposure compensation is almost always the best choice!