Bausch & Lomb specifications Discoverer 15-60x60 Zoom Spotting Scope, Model #78-1600

Models: 78-1600

1 3
Download 3 pages 46.27 Kb
Page 1
Image 1
Discoverer®

Lit. #: 91-0209/03-01

Discoverer®

15-60x60 Zoom Spotting Scope

 

 

Power Control Ring

 

Focus Control Ring

Eyepiece Lens

 

 

 

 

 

 

 

 

 

Tripod Mount

Extendable Lens Shield

DISCOVERER SPECIFICATIONS

Objective Lens

Model #78-1600

Power

FOV At 1000 yds

Exit Pupil

15x

156’

4.0mm

20x

117’

3.0mm

25x

93’

2.4mm

30x

77’

2.0mm

40x

58’

1.5mm

50x

47’

1.2mm

60x

40’

1.0mm

Welcome to a world of adventure with your new Bausch & Lomb® Discoverer® 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 Discoverer, 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. The exterior body contains a unique rubberized surface providing durability, noise reduction and a non-reflective surface. The following directions should be followed closely to assure sharp clear observations.

MOUNTING

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.

Power:

15x to 60x

Objective Lens:

60mm

Eye Relief:

15mm

Length:

17.5”

Weight:

48 oz.

FOCUSING

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 affords 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.

Continued on page 2

Page 1
Image 1
Bausch & Lomb specifications Discoverer 15-60x60 Zoom Spotting Scope, Model #78-1600