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Technical comment and timely topics for the amateur
KENNETH F. SPACE, ACL
Note to Clinic readers We hear
a great deal nowadays about the inventive genius of the American people, and, while we agree that inventions are common in this country, we wish that more of them would come to The Clinic. You may read on the opposite page of the generous payments offered for good filming stunts, ideas and "gadgets." We know that you movie makers are daily solving problems that must be confronting other filmers, and we should like to make your solutions available to all.
Filter adapter Eveir once in a
while, an idea comes to us that is so simple and helpful that we immediately want to make the "gadget" for ourselves. Such an idea was recently suggested by Ralph Sheehy. He writes, "For those of you who have a movie and a still camera too. and would like to make one set of filters do for both, here is a scheme which will cost you a few cents and perhaps fifteen minutes of time.
"At any plumbing store, buy several rubber washers (perhaps half a dozen, depending on their thickness). The
'A"* 20-TH READ BOLT, 2" LONG
l'4"x I "4" x| '/2" WOOD BLOCK
CLAMP-ON TRIPOD FASTENED TO BACK OF CHAIR
SOCKET CLAMP
WOOD BLOCK
GLUE TOGETHER
/ A
ADAPTER SLIPPED OVER LENS
8mm. camera support built of clamp used for lamps
Filter adapter made of rubber washers
washers should have an inside dimension slightly smaller than the lens barrel of your movie camera and an outside dimension slightly larger than the filter mount of your still camera. If you cannot find a washer of the desired dimensions, choose a slightly smaller one and sand it to make a tight fit. The washers are assembled and glued as shown in the diagram above."
Mr. Sheehy stops here, but we hasten to add that this idea provides an inexpensive way of making one filter fit all your cine lenses. Buy a filter to fit your lens that has the greatest diameter and then use washers to adapt it to all your other lenses.
Clamp On tripod Anthony J. So
daro writes, "I have devised a simple substitute for a tripod for 8mm. cameras. This tripod substitute can be clamped to any sturdy object, such as a chair, fence, tree limb or wooden stake.
"To make the 'gadget,' purchase a clamp of the type that is commonly used to hold a light socket and flood bulb. This type of clamp has a swivel joint at the top, which turns in all directions. A block of wood, as shown in the drawing, is cut to fit into the place ordinarily taken by the electric socket.
"Through the center of the block, drill a hole slightly smaller than the diameter of a quarter inch, twenty thread bolt which is to be inserted in it. The bolt will thus have to be forced in, thereby cutting its own thread and insuring a tight fit. After rounding off the corners of the block, place it in the socket clamp and adjust the tension on the swivel joint quite tightly. When mounted on this support, the camera can be swung in all directions for shooting scenes, and it may be clamped in any convenient place."