Practical cinematography and its applications (1913)

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162 PRACTICAL CINEMATOGRAPHY expensive type of microscope. On the other hand, the independent worker, forced by cir- cumstances to be content with an inexpensive camera, will have to do the best he can with an inexpensive microscope also. Yet the in- vestigator of each class can accomplish excellent work in his own sphere. I have seen some very fine films of microscopic subjects which were taken with an instrument costing less than a sovereign. From the general point of view they compared very favourably with those obtained with an instrument twenty times as costly. So long as the amateur does not attempt to embark upon work which is beyond the capacity of his microscope, and is content to work with subjects of relatively large size, there is no reason why he should not be able to take most interesting pictures. In the preparation of micro-cinematographic subjects it is essential that the instruments should be mounted upon a solid base, a heavy bench or table, so that vibrations may be as slight as possible. The camera may be turned by hand or driven by an electric motor through belts and pulleys. The method of mounting the microscope in its relation to the camera may be varied according to circumstances. In the simplest form the micro- scope is mounted horizontally with the stage on