Olympus OM-2 - Manual (Page 59)

FINDER GROUP UNITS
Varimagni Finder
This unique and exclusive unit
for the OM System combines
the two functions of angle finder
and magnifier, incorporating 9
lens elements and a reflector. It
fits over the camera's eyepiece,
and can be adjusted for indi-
vidual eyesight. Its eyepiece tube
is rotatable through 360°, for
use in low level and 90° angled
shots. The two-stage, one-touch
switching system offers both a
1.2x magnification image cover-
ing the whole screen, and a 2.5x
enlargement of the central por-
tion for critical focusing. For
photomicrographic use, insert
the Eyecoupler between the carp-
era and Varimagni Finder.
Eyecup 1
Attached by sliding over the OM
Body eyepiece. Its rubber hood
prevents stray light from entering
through the eyepiece, an essen-
tial requirement in light measur-
ing. The Eyecup 1 is provided
with a slot for Dioptric Correc-
tion Lenses.
Eyecoupler
Connects the Varimagni Finder
to the OM Body for photomicro-
micrography. It also ensures full
coverage of the bright viewfinder
field for use of the Eyecup 1 in
conjunction with the Motor
Drive 250 Film Back.
Focusing Screen 1
Interchangeable Focusing Screens
are often thought of as a luxury
feature in 35mm photography.
Yet the Standard Focusing
Screen 1-13 is often inconvenient
or difficult to use, and, in some
circumstances it is quite unsatis-
factory. With super-telephoto
lenses for instance, the micro-
prism becomes excessively dark.
With the high magnifications of
macrophotography and photo-
micrography, it is impossible to
focus.
The feature of each Focusing
Screen is listed on pp. 59—60.
Dioptric Correction Lens 1
Available in 8 diopter correc-
tions: + 2, +1,0 (for hypermetro-
pia); -1, -2, -3, -4, -5 (for
myopia). Used to match the
photographer's vision, and espe-
cially necessary in fine focusing
for high magnification. Fits into
the Eyecup 1.
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