BOLEX H8 Instructions For Use Manual page 13

If all this is done with the utmost care, it will be easy to
reload the film which must start at the exact point where the
exposure has been interrupted.
the camera, page 10.)
Speeds :
Button 19 enables the speed to be altered, even while the
mechanism is in action, from 8 to 64 pictures per second.
Never work the mechanism at a higher speed than 32 pictures
per second unless the camera is loaded, as this is injurious
to the mechanism.
The normal speed of motion pictures is 16 frames per second,
that is to say, the normal speed of projection of silent films.
A film " s h o t " at a speed lower than 16 frames per second
will give on the screen an impression of accelerated move-
ment. A film " s h o t " at a speed higher than 16 frames per
second will give a slow-motion
Diaphragm opening and speed, page 16.)
Starting the mechanism :
The mechanism is set in motion by pressing sharply on button
21 : as soon as pressure on this button is released, the
mechanism will stop.
To film without being compelled to remain near the apparatus
—for instance, to film oneself—move the lateral button 22
on to M (24).
on to " Stop ".
Single Exposure Device :
To make a single exposure, move button 22 to P.
Time exposures are made by pushing down lever 17 to position
T and then setting button 22 on P. The shutter will remain
open as long as button 22 is kept on P.
8
This is the normal starting button.
To stop the mechanism, move the same button
(See paragraph : Unloading
effect. (See paragraph :