Bausch & Lomb DISCOVERER 78-1600 User Manual

Eyepiece Lens

DISCOVERER SPECIFICATIONS

Power FOV At 1000 yds
15x 156'
20x 11 7 '
25x 93'
30x 77'
40x 58'
50x 47'
60x 40'
Welcome to a world of adventure with your new Bausch &
L o m b ® D i s c o v e r e r ® Zoom Spotting Scope. The nature
student and sportsman who takes pride in optical quality can
make no better choice than the Discoverer Zoom 15x-60x
Spotting Scope. The Discoverer is one of the optically finest,
most versatile 60mm spotting scopes in the world. With the
D i s c o v e r e r, the user can scan an area with a wide, bright field
of view at 15 power and instantly zoom in for breathtaking 60
power close-up. The Zoom Power Control Ring smoothly
increases or decreases the magnification as desired. T h e
exterior body contains a unique rubberized surface providing
d u r a b i l i t y, noise reduction and a non-reflective surface. T h e
following directions should be followed closely to assure
sharp clear observations.
M O U N T I N G
The Discoverer's tripod mount provides a convenient means
of fastening to any standard photographic tripod, car window
mount or shooter's stand. For best viewing results, mount
your Discoverer on a firm support to prevent movement of
the scope. Movement makes the viewed scene appear to
dance or vibrate at high magnifications. Afirm mount will also
help you to locate, track and keep objects in the field of view.

LENS SHIELD

Unscrew and remove the lens caps from the objective lens
and eyepiece. The objective lens shield may be extended by
pulling it out from the end of the scope.
15-60x60 Zoom Spotting Scope
Power Control Ring
Tripod Mount
Exit Pupil
4.0mm
3.0mm
2.4mm
2.0mm
1.5mm
1.2mm
1.0mm
Discoverer
Focus Control Ring
Extendable Lens Shield
Power:
Objective Lens:
Eye Relief:
Length:
Weight:
F O C U S I N G
The Discoverer used as a spotting scope will focus from 24
feet to infinity at any power setting with rotation of the Focus
Control Ring.
Make sure the Telephoto Adjustment Control is turned
counter-clockwise as far as it will go.
The depth of field (visual distance over which the image is
seen in sharp focus), and the area covered, is greater at the
lower powers. However, if the instrument is initially focused at
a low power you may find that additional focus adjustment is
required as power is increased.
Some users may have difficulty re-focusing after zooming
rapidly to a higher power, this can be caused by the eye's
inability to adjust quickly enough to the new magnification. It
will help to look away momentarily, then resume focusing.

USE WITH EYEGLASSES

By the use of its retractable eyecup, the Discoverer aff o r d s
the user the same eye relief (distance from the eye to the
eyepiece at which a full field of view is seen) with or without
eyeglasses. Turn the knurled eyecup clockwise for use with
eyeglasses - counterclockwise for normal use. Except in
cases of astigmatism, most users will choose to remove their
glasses since the focus adjustment accommodates for near
and far sightedness and a full sight picture is achieved
without disturbing side light.
Lit. #: 91-0209/03-01
®
Objective Lens
Model #78-1600
15x to 60x
60mm
15mm
17.5"
48 oz.
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