The information in this manual furnished for information use only, is subject to change without notice,
is not to be construed as a commitment by ATN Corp.
ATN Corp. assumes no responsibility or liability for any errors or inaccuracies that may appear in this book.
©2005 ATN Corp. All right reserved.
RANGEFINDER RETICLE
7 x 50 has a built-in step rangefinder with a mils
scale for distance, angle and height detection.
DISTANCE
If the height of a
viewed object is
known, use the
following equation
substituting height
of object for vari-
able H:
L = H/MILS x 1000
ANGLE
To calculate the
included angle of a viewed object, use the fol-
lowing formula:
x° = 0.06 x MILS
HEIGHT
If the distance to a viewed object is known, use
the following equation substituting distance to
object for variable L:
H = L x MILS/1000
2M TARGET BASED SCALE
A 2m target fits between the numbered base-
line and the main horizontal line. If the 2m
target fits between the 4 and the right hori-
zontal post of the main line the target is 400 m
away. If the same target fits between the 7 and
the right post of main line the arget is 700 m
away.
CARE AND CLEANING
By following these simple guidelines, your
binocular will provide optimal performance for
many years:
1. Keep binocular lenses clean and free of
moisture and dirt.
2. When not in use, do not expose your binocu-
lars to direct sunlight for long periods of time
(e.g. on the dashboard of your vehicle).
3. Store your binocular in a cool, dry place.
Always store your binocular in its carrying
case, with the rubber roll-down eyecups in the
“up” position.
4. Binoculars are precision instruments -
handle them with care. Do not drop, shake,
bump or rattle your binocular. Its precision
optics can become misaligned (out of collima-
tion) as a result of rough treatment, which can
render the instrument virtually unusable.
Collimation problems usually require repair
by a trained technician, and are generally not
covered by the Warranty.
To clean your binocular, follow these simple
steps:
1. Before attempting to clean any of the lenses,
carefully remove all grit, sand, dirt, dust, or
other substances which may scratch the sur-
face of the optics. Avoid touching lens surfaces
with fingers or coarse materials. Use a soft lens
brush, lens cleaning tissue, a lint-free cotton
cloth, a clean cotton swab, or “canned” air.
2. For materials that remain on the lenses, use
a liquid substance designed to remove grease
(e.g., commercial lens cleaner, household
window cleaner or rubbing alcohol).
CAUTION: Do not apply liquid directly onto a
lens, which may result in the liquid seeping into
the barrel of the binocular. Apply the solution
onto a cloth or swab, and use the cloth or swab
to remove the foreign substance with circular
motions. Take care as to not rub away antire-
flectant lens coatings. Use a light touch.
If a 2m target fits
between these two
lines then the target
is 400m away.
If a 2m target fits
between these two
lines then the target is
700m away.
L
L - Distance from object
H - Height of object
x° - Included angel
H
x°
