Exposure

Exposure in the photography world is the amount of light that comes through the focal lens and is captured when a photo is taken. Depending on how much light is around, you can change your exposure in order to get either less light or more light. This can give a different aspect to any picture, The amount of light that is available is one of the most crucial aspects to photography. Depending on what kind of camera you have depends on how much control you will have over it. Most camera's have an automatic exposure setting that determines how much light is needed for a picture. The two biggest things that are used to measure light and exposure is the Aperture setting and the shutter speed. Aperture censors how much the lens opens which depends on how much light is brought in. If you want a picture that draws to one single thing, then Aperture is what you would want to use. For instance if you want to blur the background of a picture you would then set the aperture setting to low which is a wide setting. If you want to focus on everything then you would just do the opposite and use a high setting so that everything is focused and this is a narrow setting. Now the shutter speed can be very important, especially if you are working with action shots. If you are using it on sport shots what you would most likely want is a high shutter speed, this freezes the subject in midair, if you want to blur water or something like that you want a low shutter speed. Some other aspects that affect aperture are the ISO speed, if this is set on low then ISO responds slower to light, if it is set on high then it responds faster to light. This setting is good for something like a sunny day when there is a lot of light you would want to use a lower ISO speed, this allows you to have greater depth if you are hand holding the camera and am trying to reduce shaking. Another aspects that helps is the focal length, this is the distance from the middle of the lens to its focal point. A focal point is the parallel rays of light that strike the lens. Well that is about all I have to say about Exposure, I hope you have learned something from my little explanation.