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OptiView Polarizers
Reduce reflections and glare, deepen
the blue sky, intensify colors and penetrate haze with Celestron's
OptiView filtered binocular. OptiView binoculars have integrated
drop-down polarizing filters designed to block out unwanted glare
and reflected light.   OptiView binoculars are particularly useful
for viewing outdoors over water and snow, or indoors for looking
through glass or highly reflective areas- all without affecting
the color of the object being observed.
Scattered light from the Sun becomes polarized when reflected off
of glass, water or even moisture particles in our atmosphere.
Using
a polarizer filters out all this unwanted light and reduces the
affect of reflected polarized light (glare) in the earth’s
atmosphere.
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| Without polarizing filter. |
Polarizing filter reduces glare off water, deepens
blue of sky, increases the contrast between sky and clouds. |
OptiView LPR
 Celestron
OptiView LPR binoculars have built-in light pollution reduction
(LPR) filters designed to selectively
reduce the transmission of certain wavelengths of light, specifically
those produced by
artificial light (see chart to the right). This includes mercury,
and both
high and low pressure sodium vapor lights common in most city street
lights. In addition, they block unwanted natural light caused
by
neutral oxygen emission in our atmosphere (i.e. sky glow). As a
result, OptiView LPR binoculars darken the background sky, making
deep-sky observation of nebulae, star clusters and even galaxies
possible from urban areas. While blocking unwanted light, OptiView
LPR binoculars permit the transmission of more desirable wavelengths
including hydrogen alpha, hydrogen beta, doubly ionized oxygen
and
ionized nitrogen. This will improve your views of emission nebulae,
both from urban and rural settings. Some examples of objects
that
will show improved contrast are: the Orion Nebula, the Andromeda
Galaxy and the Lagoon Nebula. Celestron OptiView LPR Filters
are
made of high quality, flat, polished optical glass with over 40
layers of coating. They’re also protected with a broadband
anti-reflection coating to prevent ghosting and to improve contrast.
Celestron OptiView binoculars carry Limited
Lifetime Warranty.
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| Orion Nebula |
Convenient thumb wheels to
rotate filters into
place. |
Product
Image |
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|
| Model |
72101 |
72102 |
| Size |
10 x 50 Polarizer |
10 x 50 LPR |
| Design |
Porro |
Porro |
| Prisms |
BK7 |
BK7 |
| Coating |
Fully Coated |
Fully Coated |
| Weatherproof |
Water Resistant |
Water Resistant |
| Angular Field of View (FOV°) |
7 |
7 |
| Linear FOV (ft @ 1000 yd) |
367 |
367 |
| Exit Pupil (mm) |
5 |
5 |
| Eye Relief (mm) |
13 |
13 |
| Near Focus (ft) |
26 |
26 |
| Weight (oz) |
30 |
30 |
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