Steiner 416, 539 User manual
Operator’s
Maintenance Manual
STEINER
BINOCULARS
Military ruggedness
and precision
07/03
Warning!
When using the binocular, never
point it directly at the sun.
The heat generated by the focused
rays of the sun may cause serious
damage to your eyes and to the
optical elements of the binocular.
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DON’T
DO IT !
Description & Special Features
STEINER binoculars provide long eye relief for eyeglass or gasmask users. By folding
the rubber eyecups
the binocular.
(1) down and over the eyepiece you will increase the eye relief of
NORMAL FOLD DOWN
The binoculars are lightweight, compact instruments
intended for use in general field observation and fire
direction. Where applicable, the right side of the
binocular includes a reticle graduated in mils.
The objective and eye piece covers
tection for the binocular. The binocular is equipped
with a carrying strap (3) for easy portability.
The binocular consists of two telescopes hinged at
the center by an index pin and sleeve arrangement.
(2) provide pro-
All images in this manual for illustration purposes only.
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Description & Special Features (cont’d)
Each telescope is comprised of
eyecups
(2 or 3) and objective covers (4).
The binoculars are optically prealigned at the factory and must
not be disassembled.
The friction necessary to maintain
the proper interpupillary distance
(distance between the eyes) is created by rubber O-rings installed in
the grooves of the index pin.
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(1), a housing assembly
1. Rubber Eyecups
2. Housing, left
3. Housing, right
4. Objective Caps
Once this distance is set for your eye spacing, the reading
on the interpupillary scale
reference.
By rotating the knurled adapter ring
you can focus each telescope to accommodate your particular optical characteristics. The reading on each diopter scale
eyepiece cover
when the binocular is not in use.
(7) should then be noted for future reference. The
(8) should be placed over the eyepieces
5. Interpupillary Scale
6. Knurled Adapter Ring
7. Diopter Scale
8. Eyepiece Cover
(5) can be noted for future
(6) of the eyepieces,
Handling Precautions
DO’S
DON’T S
Handle the binocular with care. Dropping or jarring the binocular can damage or misalign the optics. Use the neckstrap to
protect against accidental dropping of the binocular. Keep the
binocular as clean and dry as possible and always store in clean,
dry place when not actually in use. Follow the instructions outlined in this manual to obtain the best possible usage and
service from the binocular.
Do not use a dry cloth to clean the glass surfaces of the binocular. See also “Cleaning Instructions“.
Do not attempt to open or close the binocular beyond its stop
limits as this may damage internal and external parts. Do not
unnecessarily expose the binocular to severe weather elements.
For special precautions see also “Extreme Cold / Heat“ and
“Other Extreme Conditions“.
Do not force the knurled adapter rings beyond marked
diopter scale readings as this may damage internal parts.
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