Specification
BM-9036 |
|
Model |
20X80 |
Magnification |
20X |
Objective Diameter(mm) |
80mm |
Focus System |
Center |
Prism Type |
Porro/BAK4 |
Number of Lens |
6pcs/4groups |
Lens Coating |
FMC |
Angle of View |
3.4° |
Field of View |
59m/1000m,177ft/1000yds |
Exit Pupil Diameter(mm) |
4mm |
Eye Relief(mm) |
17.5mm |
Relative Brightness |
16 |
Twilight Index |
40 |
Interpupillary Distance(mm) |
54MM~73MM |
Near Focus |
15m |
All Weather |
Yes |
Waterproof |
Yes |
Aluminumfoil |
Yes |
Nitrogen Filled |
Yes |
Focus Range(m) |
Yes |
Weight |
2.5Kg |
Why do we choose 20 x 80 Binoculars ?
1.High Magnification:
The 20x magnification power allows for detailed observations of distant objects. It is particularly useful for activities like astronomy, where you want to observe celestial bodies or for birdwatching when you need to spot birds from a significant distance.
2.Large Objective Lens Diameter:
The 80mm objective lens diameter lets in a substantial amount of light, resulting in brighter and clearer images. This is especially beneficial when observing in low-light conditions, such as during dawn or dusk.
3.Versatility:
20 x 80 binoculars provide a balance between magnification and portability. They offer a higher magnification than standard binoculars, allowing for more detailed observations, while still being manageable for handheld use. However, due to their larger size and weight, they are often used with a tripod or other stabilization methods for extended viewing sessions.
3.Specific Applications:
These binoculars are popular among astronomers for stargazing and observing celestial objects. They can reveal more details of the moon's surface, distant stars, galaxies, and even some planets. Additionally, they can be useful for long-range terrestrial observations, such as wildlife spotting or surveillance.
4.Budget Considerations: While these binoculars are relatively larger and more specialized, they can be more affordable compared to higher-end astronomical or spotting scopes. This makes them an attractive option for those who want to engage in long-range observations without investing in more expensive equipment.
How to choose 20 X 80 Binoculars ?
1.Eye Relief and Comfort:
If you wear glasses, choose binoculars with sufficient eye relief to allow comfortable viewing without having to remove your eyeglasses. Look for adjustable eyecups that can be twisted up or down to accommodate different eye distances.
2.Tripod Mounting:
Due to their larger size and weight, 20 x 80 binoculars are often equipped with a tripod mounting adapter. This allows you to attach the binoculars to a tripod for more stable and comfortable long-duration observations. Mounting them on a tripod reduces handshakes and fatigue, enabling you to maintain a steady view.
3.Eye Relief:
Eye relief refers to the distance between the eyepiece lens and your eye when the entire field of view is visible. 20 x 80 binoculars typically provide a longer eye relief, which is beneficial for those who wear glasses. It allows for a comfortable viewing experience without having to remove eyeglasses.
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