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using long-focal-length lenses, or when a tripod is too cumbersome to use. These hand-held supports are usually fitted with a cable release for firing the shutter. camera vibration or shake; for instance, on a single-lens reflex (SLR) camera, the mirror "jumps" up when the you can lock the mirror up before taking the picture to avoid this; however, the disadvantage of locking the mirror is that you are unable to see through the viewfinder. Also, the pressure of your finger on the shutter release can cause some camera shake. `This does not happen on cameras with a delayed shutter release because the camera compensates by automatically can be used to fire the shutter without handling the can hold a camera absolutely steady, especially for exposures longer than about 1/60 second or even shorter exposures when using long-focal-length lenses. When using telephoto lenses or shooting motion media, you must remember that camera movement can become critical. Even the slightest camera movement is magnified and becomes very apparent in enlargements of still photographs or when motion-media footage is angle as possible. The design of a support to be carried outside the lab should be compact and lightweight, while still providing a firm, rigid camera support. inconvenient to carry on many assignments; however, you should use a camera support when it is appropriate to do so. This allows you to produce the sharp pictures that are characteristic of a truly professional photographer. supports with flat platforms or heads in which cameras are secured. Most tripods are equipped with a head that this center post and is raised or lowered easily by cranking the post up or down. These elevators eliminate the need for readjusting all three tripod legs for making small, last minute adjustments to the camera height. and provide the best support; however, if too heavy, they are not very portable. As a general rule, the heavier your camera, the heavier and stronger your tripod must be. For some of the light, full-size tripods, rigidity can be improved by hanging a bag of sand or another weight from the tripod head This is especially useful in high winds. Another method is to hang a strap from the tripod head, and use the strap as a foothold on which to apply downward pressure (fig. 5-3). tabletop tripods can even be braced against the photographer's chest. Because of their small size, they can easily be carried in a camera bag. by pivoting the tripod on this one leg. Extend the other two legs and adjust them to level the tripod platform horizontally. When setting up a tripod on level ground, you can waste a lot of time trying to get the tripod level if the leg sections are not fully extended. An easy solution to the problem is to mark the tripod legs in specific increments with a marking pen, pencil, or scribe. One method is to mark short lines at l-inch intervals and long lines at 6-inch intervals. Doing this reduces your frustration, saves time, and allows you to level your camera on the tripod with less effort. When a tripod is set up on an uneven surface, several adjustments of the side legs are normally necessary. Readjustment of the front leg levels the camera vertically so the platform or head is level. Most newer tripods have platforms that can be adjusted by eliminating the need for minor leg adjustments. tripod socket. Secure the camera by tightening the camera clamp screw locknut. After the camera is mounted on the tripod, test the camera to ensure all camera controls are accessible and function properly. The camera should be stable and not shake when the camera controls are operated. Basic Photography Course |
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