Binoculars - PENTAX Sport-Optics

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BaK4 prisM
Focus Plane
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aspHerical eYepiece lens
Edge-to-edge sharpness is a vital element to comfortable viewing.
To achieve this we utilise aspherical lens elements in our eyepieces.
This is a specially shaped lens design that reduces aberration to a
minimum. In our SP and ED models we use hybrid-Aspherical lens
elements that have the additional advantage of superior
functionality while being lightweight and compact.
sMc Multi-laYer lens coating
To improve the overall transmission and resolution, lens-coatings
are used to reduce reflection and any loss in contrast. With the use
of Super Multi Coated lenses, PENTAX achieves high efficiency,
allowing light transmission of up to 98%! The PENTAX SMC coating
is a complex and sophisticated 7-layer coating that corrects
light transmission over the full light spectrum. The patented
PENTAX SMC technology is renowned in the optical industry.
A prism is a complex optical element necessary to correct the image the right way up and
reduce overall length of the binocular. In a prism, light travels through complicated angles
and so the quality of the prism glass used is of significant importance. PENTAX
uses exclusively high-index BaK4 prisms; made of very pure Barium glass.
Binoculars and spotting scopes are complex optical instruments combining precision engineering with
high-quality optical elements. The quality of PENTAX Sport Optics products depends on a number
of critical components. PentaBright Technology, a PENTAX trademark, stands for the use of only the
highest quality materials and optical principles that can be found throughout our full range of Sport
Optic products. Consider this:
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