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• Showing frame counter mounted on platform and attached to camera ready for use.
HIIII\ FRAME COUNTER
HOME MOVIES FOR SEPTEMBER
USING two non-restricted mechanical items still purchasable — a Veeder counter and a speed indicator such as used by mechanics in testing r.p.m. speeds — I constructed a frame counter for my 16mm. Bolex camera. While the basic model Bolex camera happily permits winding back film for fades, dissolves, etc., it does not provide a builtin frame counter by which the number of frames wound back or forward may be recorded. A frame counter is offered by Bolex as a separate accessory, but these are not always readily available. Therefore, my home constructed frame counter resulted.
Considerable mechanical work was involved in preparing the brackets by which the two units are held together and then attached to the camera, but most of this was done with hack-saw, files, and other home workshop tools. The entire gadget was hand made.
The speed indicator dial registers the number of turns of the camera handcrank shaft, to which the gadget is attached, and the Veeder counter registers the number of frames that pass the film gate aperture. Examination of the Bolex mechanism revealed that one complete turn of the hand crank shaft transported eight frames of film. Five revolutions transported one foot of film or forty frames.
The speed indicator dial registers every revolution of the indicator shaft
• Sketched below are various parts necessary to construction of this home made frame counter, also front and rear views of unit completely assembled. Device, with slight alterations, is applicable to other cameras equipped with backwinding crank.
By PAUL
and will record up to 100 revolutions or the equivalent of 20 feet of film — considerably more than is necessary in any windback operation. The dial pointer may easily be re-set to zero.
The completed device works as follows. In mounting the camera on tripod, the counter mounting plate is first
K A S S E N
placed over the tripod screw and secured in place as the camera is bolted fast. The counter is attached to an upright which may be shifted laterally toward and away from camera. In use, the counter is moved toward camera, so that the slotted shaft engages hand • Continued on Page }8o