Attaching "C" Mount Lenses - BOLEX H16 SBM Instruction Manual

Attaching
«e))
mount lenses
"C" mount lenses can also be attached by means of an
adapter, which is available in two versions:
a) without protective ring, for light lenses (fig. 1);
b) with a protective ring which prevents the bayonet
from being distorted if the camera is accidentally
bumped. This adapter is suitable for heavy or bulky
lenses (fig. 2).
In both cases, the lens should be attached to the con-
cave side of the adapter.
The lens, fitted with the adapter, is attached to the lens
mount of the camera as described above.
After removing the lens, attach the bayonet mount cover
to protect the reflex prism from dust.
Field of view
The field of view of a lens depends on its focal length.
Standard lenses (26 mm) are suitable for most shots.
Wide-angle lenses (10 mm) are used for general
views or when it is difficult to move back from the
subject (buildings, interiors, etc.). They give heightened
perspective.
Telephoto lenses (75-150 mm) are used for long
distance shots and are ideal for filming sports scenes,
children, animals, etc.
Zoom lenses permit changing the focal length and
10 therefore the field of view (see page 44).