EYE-LEVEL FOCUS
FOR PAILLARD-BOLEX
H
MOVIE CAMERAS
This accessory is intended for use with the ground-glass
focussing prism (or Critical Visual Focusser) fitted to H 16
and H 8 cameras. Whereas when used alone this prism
provides a horizontal image at the front of the camera, the Eye-
Level Focus enables focussing with the ground-glass to be
undertaken from the back of the camera, in the same plane
as the viewfinder and with a vertical image. A brilliantly
clear, distortion-free image is provided, at a magnification
of 10x. When the 1" lens (H 16) or
1
/
2
" lens (H 8) are in use,
a ratio of
1
between the image and the subject as seen by the
naked eye is obtained ; thus the image in the Eye-Level Focus
can be superimposed on the retinic image seen by the other
eye, with a consequent increase in the instrument's brilliance
and convenience in use.
The Eye-Level Focus is particularly recommended forfocussing
high-speed lenses and telephoto lenses with the diaphragm
wide open, for close-ups—which always require very accurate
focussing—and for keeping an accurate check on depth of
field. The Eye-Level Focus is made in two models : " REFSE "
for H 16 and " REFTU " for H 8 cameras.
If your Eye-Level Focus has been purchased separately,
carry out operations A to H.
Instructions for Use
27