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HOME MOVIES FOR MAY
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'NE of the most important cine accessories for the movie amateur is a film viewer. The most ideal is the "motion" editor which projects a small image of the film in motion so that it may be viewed exactly as seen on a full size projection screen. Film viewers of this type are the Craig Projecto-Editor and the Bell & Howell Filmotion Editor — both reportedly unavailable until after the war.
In the meantime, enterprising amateurs can make an effective optical film viewer which, while lacking the intermittent motion feature of the commercial viewers, will enable the operator to view individual film frames enlarged and projected on a translucent screen as the film is run off from one reel to another by means of rewinds.
Such a device is pictured above and the construction details given in diagrams at bottom of page. Since almost every amateur owns a projector, he already possesses the most important part of this film viewer — the lens. The gadget is specially designed to utilize the lens from one's projector which may be borrowed temporarily for the purpose and returned again to projector when editing chores are completed.
Although the following specifications cover construction of film viewer for 8mm. film, they also are applicable to one for 16mm. Only change necessary would be in the film aperture and track ill the film gate A, and in size of the projector lens holder.
Using the lens from a standard 8 mm. projector, the device will provide a projected image approximately i" by z" on the small screen, and this can be viewed in normal sitting position with
• Above photo-diagram shows how author's home-made film viewer works. Film passes beneath lens; image is projected upward to system of mirrors and onto 2" x 2" screen.
A SIMPLE HOME-MADE Oil FILM VIEWER
B y
HERBERT
room lights turned low. Material necessary for building the viewer may be found around almost any home or garage workshop, or may be purchased at small cost. The writer's only expense in building the original was for two small
• Diagrams below show method of constructing each part for this simple optical film viewer.
E . MOORE
handbag mirrors, one no volt base plug, one automobile tail-light bracket and a ioo watt lamp to fit same. The small snap switch I salvaged from an old radio.
By using larger or smaller mirrors, or by changing the focal distance between lens and projection screen, a larger or • Continued on Page 207