Talking pictures : how they are made, how to appreciate them (c. 1937)

Talking Pictures Prices of good 8 mm. cameras vary from $25.00 to $100.00, according to lens equipment and workmanship. Projectors are slightly higher in cost, varying to the necessity for an electric motor drive, cooling system, and good optical units for the best screen image. A. For simple 8 mm. cameras it is only necessary to: (a) Thread film (In some types this is very simplified.) (b) Set exposure on lens (c) Wind the spring (d) Press the button B. For advanced 8 mm. cameras there are added features: (a) Variable speed (b) Variable focal length lenses (c) Cine effects The 16 Millimeter for the Advanced Amateur Many people in all parts of the world have developed a real talent for taking pictures and even rival the professional cameraman in his hobby. For the amateur who aspires to rival the theatre or screen with his film efforts, the 16 mm. size equipment is quite essential. Only with 16 mm. cameras can certain professional cinema tricks be accomplished. While the simpler models of 16 mm. cameras may weigh only 3!/2 pounds, a camera capable of doing all the tricks desired for semiprofessional work might weigh as much as 15 pounds, thus limiting its portability. With modern 16 mm. projectors, the limitation of audience size inherent in the use of 8 mm. projectors is adequately overcome with the 16 mm. Pictures are now satisfactorily projected on screens 14 x 18 feet wide to audiences of two and three thousand persons. Various focal length lenses permit latitude in screen size in relation to the distance to the projector. Among the better known 16 mm. cameras and projectors are the following: [ 294 I