Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere.
That's because we have our own in-house Product Research team — they open the box,
verify contents, check the owner's manual, and record dimensions, features and specs.
We stay on top of new products and technologies to help people make informed choices.
Overview: The COSMOS Tree of Life 8x25 binocular by
Celestron is a
lightweight, waterproof binocular with fully multi-coated optics, that can be used
for observing nature and wildlife. The 8x25 model features a desert sand-colored rubber-armored coating for a sure grip, and comes with a
neck strap, rain guard, objective lens caps, and a soft, padded carrying case.
Waterproof: The COSMOS Tree of Life binocular is waterproof,
fogproof, and nitrogen purged, allowing you to use them in humid or wet
conditions without worry.
BaK-4 Prisms: The high quality BaK-4 prisms are phase
coated, which increases contrast and resolution. The binocular includes fully
multi-coated optics for great image detail, and brighter images, even in low
Focus Knob: The COSMOS Tree of Life binocular has a smooth, central focus knob for
bringing your subject into focus.
Diopter Ring: The right eyepiece has a +/-4 diopter ring for
adjusting the binocular to your eyesight. A diopter index indicates the "0"
position, as well as "+" and "-" positions.
Twist-up Eyecups: The twist-up eyecups accommodate both
eyeglass and non-eyeglass wearers. For those who don't wear eyeglasses, the
eyecups twist counterclockwise to the full up position. For eyeglass wearers,
the eyecups provide the widest field of view in the down position. There is also
a middle click-stop position, which may suit other users better.
- Model: COSMOS Tree of Life 8x25
- Objective Diameter: 25mm
- Magnification: 8x
- Close Focusing Distance: 6.5'
- Angular Field of View: 7.2°
- Exit Pupil: 3.1mm
- Eye Relief: 14mm
- Relative Brightness: 9.6
- Twilight Factor: 14.1
- Prism Type: Roof prism
- Interpupillary Distance Adjustment: 56-72mm
- Diopter Compensation: +/-4
- Weight: 12.1 ounces