| you are: a movement Rhythm
It is very important to know in advance, that the raft comes nearer, therefore if the river is not looked through on 150-200 m usepx on a current, the signaller that the photographer could prepare for shooting is necessary. уралсиб страховка
Essentially expand the possibilities concerning a point choice at shooting from coast the photographer can three helps of the adaptation reminding a well crane. Such reception it is possible to receive interesting pictures, for example, a raft going in breakers directly on the spectator, or from high coast, having directed an objective vertically downwards, the accurate image of the kayak which are making the way among stones and waves. The chamber for such shootings should be, certainly, is supplied by the device for remote descent of a shutter.
Remote drives of the button of a shutter happen mechanical (the usual trigger rope which can be the most different length concerns them), electric, etc.
In drawing on p. 58 the device of a hydraulic drive which is accessible to independent manufacturing is resulted. Two tight tiny cylinders And and are connected by a flexible plastic tube. In cylinders there are elastic diaphragms, and all system is filled by a liquid. The liquid is squeezed out by pressing of a finger from a cylinder And in a tube, pressure increases, and the diaphragm in a cylinder also Would move, pressing shutter descent. |