TV Production 21-22

  - The Camera - "White Balance" What is White Balance?   It is a camera setting that allows you to "balance" the color temperature of your image. It brings your image into a neutral state, such as orange images turning white. How is color temperature measured?   It is measured by the "Kelvin value." Why should a photographer know how to change the white balance in their camera?   It is important for photographers because the setting won't always have the perfect, natural balance in temperature. Photos of subjects could be ruined with all kinds of unwanted color casts, making things such as people having unnatural-looking tones to their skin or surroundings.  Custom White Balance  ........ In an orange setting........ Before After ........ In a blue setting........ Before After  White Balance Presets  Daylight Shade Cloudy Tungsten light White fluorescent  light

- The Camera - "ISO & Gain" What is ISO?   It is a setting on a camera that allows you to change an image to brighten or darken. What is the visual difference between low and high ISO?   Low ISO photos will result in less grainy (noise) photos, whilst higher ISO will result in more grainy photos. Higher ISO, however, can also add more brightness to the photo. When do you use a lower ISO? When do you use a higher ISO?   Lower ISO may be used in a setting that is already bright, whilst higher ISO may be used if there isn't another way to increase the brightness (such as when using high shutter speed). This allows for less motion blur to appear on images when trying to take a picture of a fast-moving subject. High V. Low ISO Internet Examples Room Experimentation The darker room image looks a lot more grainy with noise, while the lighter room image looks a lot more clear. What is gain?   It boosts video signal on a camera, allowing for more brightness by "fooling th

  - The Camera - "Aperture & Iris"                What is aperture?   It is essentially the "pupil" of a camera lens, in which the lens "open" and can be shrunk or enlarged in order to allow more or less light into the camera sensor.                  How does it affect exposure?   It changes the amount of light that is able to reach the camera sensor. Large, wide openings of the aperture will result in brighter photos because more light is passed. A smaller, tight opening of the aperture will result in darker photos because less light is passed. How does it affect depth of field?  A large aperture will yield greater background blur, whilst a small aperture will yield little background blur. How do you pick the right aperture for your scene?  When capturing photos in bright/dark environments, a smaller/larger aperture may want to be used since aperture affects exposure. This allows for less light on sunny photos, or more light on photos taken at night.