USING EXPOSURE COMPENSATION . Exposure Compensation. Exposure can be adjusted manually by individually changing your shutter speed, aperture and/or ISO setting. Without going into manual mode , an alternative way to adjust exposure is with exposure compensation.
Exposure can be adjusted manually by individually changing your shutter speed, aperture and/or ISO setting.
Without going into manual mode, an alternative way to adjust exposure is with exposure compensation.
It allows you to shift the overall
exposure without adjusting individual settings.
Exposure compensation adjusts the exposure by increments, called “stops.”
Most cameras allow you to adjust in 1/3 or ½ stop
Increasing the exposure (brightening the
image) is in the “+” direction, while decreasing the exposure (darkening the image) is in the "-" direction.
By checking the histogram immediately after taking an image, you can see if the image is over- or underexposed, and if necessary make further adjustments to exposure compensation and take the image again
Example from a point-and-shoot camera with exposure compensation at -1 stop. If the camera had been the normal exposure (“0” setting), the detail in the background would have been lost.
You will find there will be times that you cannot adjust your settings to get
the exposure of the image to fit nicely within the histogram, such as when
shooting an image that includes extreme contrasts.
Extreme contrast is found in any scene that contains a bright light source and strong shadows. In these cases, choose the subject in which you want the detail and set exposure for that subject. Don’t worry
about over- or underexposure in other areas where the detail doesn’t matter.
When you get your exposure right in high contrast situations, you can create wonderfully dramatic images.
For example, in a sunset, you don’t need the information in the sun itself, but you would want the detail in the clouds. If you underexpose enough such that the sun isn’t overexposed, you would no longer have detail in any of
the dark areas of the image. The sunset image above was exposed to capture the cloud detail. The sun is overexposed and the boat is underexposed to create a silhouette.