I. Advantages of a CCD camera over a tube camera
The introduction of CCD cameras was a significant step for cinematography in terms of video actually transforming into a medium through which excellent pictures could be created. Until the introduction of CCD cameras, tube cameras were the primary means of capturing images on video cameras. They had a number of problems associated with them, and it was only the introduction of the CCD camera that first addressed most of these issues.
A. CCD's helped ensure accurate and permanent registration and geometry.
Tube technology necessitated the need for an engineer to facilitate the running of the camera, to tweak it constantly and ensure that image quality remained the same throughout the duration …show more content…
Pan and scan is a 1.33:1 image that allows one to decide which part of the image they want to look at. For example, if there is a scene with two people looking at each other in profile, pan and scan gives the flexibility of switching between the two people, so as to capture the whole conversation and not get limited by the use of an anamorphic lens or an ordinary 1.33:1 screen. By doing this, the experience to the viewer becomes as if it is a two shot image of these two people talking, without any part of the scene being cut out at all. Another useful aspect of pan and scan is the ability to blow up: it can be used to zoom into a particular portion of the image, if it wants to remove attention from something else. For example, if there is a scene with one person in the center and another person's head popping out next to the first person, and the latter is unwanted, then it can be eliminated using pan and scan by zooming on to the first person. The only downfall is that the image, being zoomed, would be a bit grainier (unclear), and thus there is a limit on as to how much one can blow up an …show more content…
One way of measuring IRE values is through a waveform monitor, which is a sort of light meter that follows what is happening on the camera screen from left to right. It again is on a scale of 0-100, and any vertical slice has light and dark areas on it. A particular IRE value in a scene appears in the form of zebras, which are diagonal lines seen in the viewfinder. A value of 100 IRE represents pure white, and when that is achieved, the image actually disappears, i.e. it ceases to exist. If there is something on an image that is at 100 IRE, then it will just appear as a white blob. So, adjusting the scene by darkening it won’t make the blob become sharper and start showing details. This is always a concern for cinematographers, as they do not want to have too much on the screen that is at 100 IRE, i.e. that has no
The introduction of CCD cameras was a significant step for cinematography in terms of video actually transforming into a medium through which excellent pictures could be created. Until the introduction of CCD cameras, tube cameras were the primary means of capturing images on video cameras. They had a number of problems associated with them, and it was only the introduction of the CCD camera that first addressed most of these issues.
A. CCD's helped ensure accurate and permanent registration and geometry.
Tube technology necessitated the need for an engineer to facilitate the running of the camera, to tweak it constantly and ensure that image quality remained the same throughout the duration …show more content…
Pan and scan is a 1.33:1 image that allows one to decide which part of the image they want to look at. For example, if there is a scene with two people looking at each other in profile, pan and scan gives the flexibility of switching between the two people, so as to capture the whole conversation and not get limited by the use of an anamorphic lens or an ordinary 1.33:1 screen. By doing this, the experience to the viewer becomes as if it is a two shot image of these two people talking, without any part of the scene being cut out at all. Another useful aspect of pan and scan is the ability to blow up: it can be used to zoom into a particular portion of the image, if it wants to remove attention from something else. For example, if there is a scene with one person in the center and another person's head popping out next to the first person, and the latter is unwanted, then it can be eliminated using pan and scan by zooming on to the first person. The only downfall is that the image, being zoomed, would be a bit grainier (unclear), and thus there is a limit on as to how much one can blow up an …show more content…
One way of measuring IRE values is through a waveform monitor, which is a sort of light meter that follows what is happening on the camera screen from left to right. It again is on a scale of 0-100, and any vertical slice has light and dark areas on it. A particular IRE value in a scene appears in the form of zebras, which are diagonal lines seen in the viewfinder. A value of 100 IRE represents pure white, and when that is achieved, the image actually disappears, i.e. it ceases to exist. If there is something on an image that is at 100 IRE, then it will just appear as a white blob. So, adjusting the scene by darkening it won’t make the blob become sharper and start showing details. This is always a concern for cinematographers, as they do not want to have too much on the screen that is at 100 IRE, i.e. that has no