Exposure and Bracketing

When taking a picture the camera has a light meter that will try to get the correct exposure. Exposure is made up of 3 parts: the film speed (ISO), the aperture (f-number), and the shutter speed (fraction of a second). When your camera uses it’s light meter, it tries to make the scene be an average grey called “18% grey’. To take advantage of this photographers will use a grey card to take the exposure reading.

Photographers will also ‘bracket’ their shots. That is take a shot with 1-stop more and 1-stop less light. Each full stop is a multiple of 2. So 1-stop less is half the light and 1-stop more is twice as much light for the exposure.

Sunglasses on boy LED lighting

For the little boy series of images. the -1 exposure looks the most pleasing. This is probably due to the dark coach taking up a large portion of the image.

 

Students in a classroom – Fluorescent lighting

This best shot in this series is likely the +2 bracket, for two reasons. First, the exposure is better, the image is bright and has nice contrast. The other reason, the expression of the fellow in the foreground seems to tell a story or mischief  and intrigue.

One lesson learned in taking this, is to not rely totally on the camera choosing the best settings for exposure.

Recent Posts

Archives

Categories

Meta

MrPaul Written by: