Attention! Before closing the camera, the
support 8 must be swiveled in again. A
tripod socket (see Fig. 2) is provided for
mounting on a tripod.
For flash exposures, set pointer 5 (Fig. 9)
to (-). Move lever 6 (Fig. 9) downward
and then hold it in place by engaging the
switch 9 (Fig. 10) located on the bottom
of the shutter housing in the direction of
the arrow. After the exposure, close the
shutter by turning back the switch 9 or,
more simply, by closing the camera. which
automatically pushes back the switch 9.
The device has 3 apertures, each of which
is adjusted by moving the small toothed
switch 10 (Fig. 8) until it snaps into a
notch along with its respective aperture.
The Billy-Clack is provided with a built-in
yellow filter, when used cleverly with
isochrome film, the exposure time is
doubled and the next larger aperture is
selected (e.g. 8.8 instead of 11). The
yellow filter is placed on the lens by
pulling down the hook 11 (Fig.10) located
on the underside of the shutter housing. If
you close the camera, the yellow filter is
automatically pushed back.