Further filtering can be done in software by adjusting exposure and threshold.

The program mode automatically adjusts exposure according to the focal length of the lens in use.

It lets you take two focus "readings" and then adjusts focus and exposure to suit.

They were put before the camera not for the audience's eventual enjoyment, but for brief tests that technicians used to adjust the film's color and exposure.

It also allows basic editing of images, such as adjusting color and exposure, resizing, cropping, red-eye reduction and printing.

One of the neatest features is facial recognition - it can detect up to eight faces in a single shot, and adjust the focus and exposure as needed.

Apple thankfully added tap-to-focus for video, which will adjust exposure and focus to the area you tap in the frame.

The image is then analyzed by software that adjusts color, contrast and exposure as needed.

Their major drawback is a lack of versatility; most have a single, fixed lens, and none allow the user to adjust exposure manually.

In which direction, and how much, would you adjust exposure?