Sinclair Frame and View Meter User manual

4
INSTRUCTIONS | FOR USE of the

As a View Each instrument is supplied with
ia a fitting which may be screwed
in a convenient position on either
, ie top or side of the camera. With most film
cameras it will naturally be attached to the side;

and the Finder can then, if desired, be left in
Dosition ready for use, After fixing the Finder,
it should be adjusted to agree with the lens. ‘To
do this, focus the lens on a distant object, then
Hpen the Finder, and looking through the eye-
iece, draw the “‘frame”’ to or fro until the view
‘seen in the ‘‘ frame ” is identical with that on
ne focussing screen. When such is the case a
cratch or mark is made with the sharp end of a
enknife in line with the pin which moves for-
ard or backward in the central slotted plate.
= tre case of a Kodak it will be necessary to
yemove the back of the camera and press a
piece of ground glass against the aperture, in
order to observe the view given by the lens when
set at “Infinity”). For actual use in the field,
-the Finder being once marked, all that is neces-
As a View Finder. sary is to draw out the frame of the Finder until
the pin in the slotted plate comes against the
engraved mark, and the view then seen through
the eyepiece will correspond with that given on
the plate or film. Where several lenses are used
on the same camera, it is a simple matter to
inake various marks on the slotted plate, so that
the views shown in the frame coincide with those
yiven by the lenses,

As a View The Finder being marked as
Meter. suggested above, it can be

readily detached from _ the
camera and kept in the observer’s pocket. When
on the look out for suitable pictures it is a
simple matter to extend the lazy-tongs to the
desired position, and by holding it to the eye
the possibilities of any view with any lens will
be quickly recognised. It will at once show
whether a shorter or longer focus lens is
necessary to get the view from any particular
point, or whether the observer must approach
or recede from the object in order to obtain his
bicture with the lens that may be fitted to his
yamera.

As a View Meter, ‘See :
t
nal |

=——=
Bi

JAMES A, SINCLAIR & CO. LTD.

Photographic and Scient gic Instrument Makers
54, HAYMARKET, LONDON, S.W.1.