the negative up to half this time, so that they can transport the negative in the remaining time. Many video cameras now allow adjusting the shutter timing manually, though, so this is no longer a big concern. Dynamic range Old video technology only had a 5 stop exposure dynamic range. Modern HD video cameras have up to 14 stops. The exposure range is therefore less of an issue than before, although there is still a popular belief that video is considerably worse than film in the shoulder of the gamma curve, where whites blow out in video, while film tends to overexpose more evenly and gracefully. Grading The footage may also be graded to have more of a "filmic look." In the US, this process is often referred to as color timing. Jump and weave In a standard film projector, each frame of film is positioned, or registered by being held motionless against a rectangular opening, known as the gate, for a fraction of a second. While in the gate, light passes through the image in the frame, to be projected onto the screen. As soon as the shutter cuts off the light, either sprockets or a device called a claw is used to move the film rapidly so that the next frame can be registered in the gate before the shutter opens again. However, the pins on the sprockets (or the claw) do not fit the sprocket holes in the film perfectly. There must be some slight clearance to allow the pins to enter and leave the sprocket holes without undue friction or binding. This discrepancy means that each frame cannot be positioned perfectly within the gate each time; the frame may be slightly too high or low (jump) or to the left or right (weave). This introduces unintended motion from frame to frame as the film is projected. This discrepancy can increase as the film becomes worn with use, causing the sprocket holes to become more and more enlarged, thus allowing more error in frame position. When film is scanned so that an electronic (video) copy can be made, various means are used to help ensure that the variations in frame position as a result of sprocket hole wear are minimized. The more effective these means are, the less of a 'film look' the result will have. On the contrary, if this compensation is reduced or disabled, the