Periscopes
Mirrors used in the devices outlined below should be surface-silvered on ¼ in polished plate glass. Ordinary mirrors not only give a double image, but the thinner glass distorts when fixed in a frame.
Periscope
Bulky TV and movie cameras can seldom be mounted low enough to obtain a ‘worm’s-eye view’. For this sort of shot a periscope must be used. Mounted in front of the lens it can lower the apparent viewpoint to a few inches above floor level. Clamped firmly to the camera it can be moved around to give a variety of tracking, panning and even zoom shots. Simple wooden or metal constructions suffice as long as the mirrors and their mountings are free of vibration.
Underwater periscope
A version of the periscope can be used to obtain ...
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