User Manual
Eye Adjustments
How to adjust for distance between your eyes:
The distance between the eyes, called “interpupillary
distance,” varies from person to person. To achieve perfect alignment of lens to eye, follow these simple steps:
1. Hold your binoculars in the normal viewing position
2. Grasp each barrel rmly. Move the barrels closer together
or farther apart until you see a single circular eld.
Always reset your binoculars to this position before using.
Roof Prism System:
the prisms overlap closely allowing the objective (front)
lens to line up directly with the eyepieces. The result is a slim, streamlined
shape in which the lenses and prisms that magnify and correct the image
are in a straight line.
Porro Prism Systems:
the objective lens is oset from the eyepiece.
Light is redirected through the binocular internally. The result is a shorter,
stockier shaped binocular. In general, porro prism binoculars oer a wider
eld of view. Most zoom binoculars use the porro prism system.
objective lens
eyepiece
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