Brain Dump

Exposure, metering, aperture, and shutter.

I am going to write three hundred words about exposure, metering, aperture, and shutter. While making the pinhole camera we learned about these, especially exposure. If we left the pinhole camera exposed to light for too long, the picture wouldnt be clear enough, but too light. If we didnt leave it exposed for long enough, then you couldn't tell what the picture was that was being taken. Also, if there was too much or not enough light it had the same effects.
Shutter speed can be changed to make the picture lighter and darker, and to make it a brighter picture the shutter is slower because then it's longer. There are a few different types of metering, like spot metering, center weighted metering and multi-zone metering. Spot metering lights up the subject that you center your camera on, making it clearer. Multi-zone metering takes different lightings from different points of the picture and puts them all together to use a certain lighting for the picture as a whole. center weighted metering is when the camera reads the light in the center of the picture and determines the aperture and shutter speed to get the best exposure for the entire photo. The aperture is a bigger number when it's a smaller hole for shutters because the size of your lense is divided by the diameter of the whole. The bigger the hole the more light is allowed into contact with the ccd, and the smaller the hole the less light the ccd gets. Exposure, timing, lighting, aperture, and shutter are all different ways one can use to make a clearer or not so clear picture. They all work together and can be changed with settings on most cameras, or can be automatically decided by your camera.