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101
LETS TRY
TIME LAPSE
The slow and magic movements of nature can be brought to your screen through simple frame by frame filming
COOPER JENKINS
TIME lapse movie making is funl You have probably wondered how time lapse movies are made and, because of their seemingly miraculous results, have given up the process as being too complicated.
On the contrary, time lapse filming is simple if you think of it as the opposite of slow motion. Instead of the camera running fast, say sixty four frames a second as in slow motion, it runs very slowly. In fact, there is a considerable lapse of time between the exposure of each frame — hence, the name "time lapse." This long time between exposures allows the subject, a flower, for example, to grow or unfold more between exposures than if it were filmed at the normal rate of sixteen frames a second. Later, when the film is projected at normal speed, the entire unfolding of a flower (a process that may have required several hours or even a whole day) will be portrayed on the screen in a matter of a few seconds. There is a tremendous thrill when you see your first time lapse sequence unreel in this way.
SIMPLEST TIME LAPSE
Cloud formations are among the most interesting and simplest of all subjects inviting the amateur time lapse enthusiast. All that is needed here is a camera mounted on a tripod or other suitable support.
The first thing to do in shooting a cloud study is to decide on the amount of time lapse to use between exposures. Two things should be taken into consideration here: (1) the rapidity with which the clouds are moving and (2) how fast you want them to move when seen on the screen. Three or four frames a second usually constitute a good filming speed, but sometimes intervals as long as one second are useful in shooting very slowly moving clouds. Your own judgment and guesswork will serve you well until you get a little experience, for nothing will take the place of the trial and error method.
Best among cloud formations are thunderheads. Even with the naked eye it is exciting to observe the turbulent action that takes place within a gleaming cumulus cloud. How infinitely more impressive it is when this action has been accelerated to four or five times its normal speed by the time lapse camera!
A single frame device is an advantage in this kind of movie making. But, if your camera does not have this advantage, you can still make good time lapse movies. For example, an entire sequence of cloud movements can be single-framed by a series of quick, light taps on the starting button, at the rate of two or three exposures a second for only two minutes. Amazing results can easily be produced by this method. [Continued on page 129]
Photographs by Cooper Jenkins
CLOUD FORMATIONS, among the most beautiful of time lapse subjects, can be pictured in single frame exposures, without special equipment. The rosebud and the candle require an easy to make timing device.