Harbor Freight Tools 65730 - Manual (Page 3)

SKU 65730 For technical questions, please call 1-800-444-3353. Page 3
introduction
The use of binoculars help to expand your horizons by allowing you to see a distant object as if it were
located very close to your eyes. When viewing sporting events, for trips, hunting, bird watching, hiking,
boating, concerts or theater, your binoculars will enhance your view of the world.
some Helpful notes about Your Binoculars
These binoculars are rated 7 X 50 magnification. The first number represents the power or magnification of
the binoculars, while the second number represents the objective diameter expressed in millimeters.
The light gathering capabilities of binoculars are determined by the objective diameter. Binoculars with
large objective diameters (above 50 mm) are designed for low-light conditions and astronomical use.
Binoculars with small objective diameters (under 30 mm) are ideal in bright light. Binoculars that fall in the
range between (30-50 mm) represent a good compromise between light gathering capability and size.
Magnification is defined as the amount of increase over the actual image size. A 7 X binoculars magnifies
the image by 7 times life size.
Magnification:
Objective Diameter:
Field Of View:
The field of view is the extent of the area seen through the binoculars. It is expressed either in angular
measure or in feet at a range of 1,000 yards.
The interpupillary distance of the eyes varies from 2.1” to 2.7”. The adjustment of the Binoculars to your
individual interpupillary distance is made by bending the barrels about their hinges, thus increasing or
reducing separation of the eyepieces until the two circular fields of view fuse into one.
maintenance
Keep the rubber lens caps on the Binoculars and store in it’s carrying case when not in use. Use a soft
lens cleaning cloth with lens cleaning solution to clean the lenses. A good camera shop should carry
these items.