Celestron - Oceana 7 x 50 Waterproof Porro Binoculars with Built-In Compass - Green
Model: 71189-B
SKU: 5360481
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- General
- Brand: Celestron
- Model Number: 71189-B
- Product Name: Oceana 7 x 50 Waterproof Porro Binoculars with Built-In Compass
- Color: Green
- Imaging
- Magnification: 7 times
- Objective Lens Diameter: 50 millimeters (Generally, the larger the diameter of the objective lens, the greater the light-collecting power and the brighter images will appear.)
- Field of View at 1000 yards: 394 feet (The area of a target, measured horizontally from the location of viewing, that can be observed.)
- Field of View at 1000 yards (Maximum Magnification): 393.7 feet (The area of a target at minimum zoom, measured horizontally from the location of viewing, that can be observed.)
- Close Focusing Distance: 33 feet (The closest distance the user can be from an object to obtain a clear, focused view through the lens.)
- Angle of View (Maximum Magnification): 7.5 degrees (Measurement of the angle of view that can be seen via the device at its highest magnification.)
- Features
- Size: Full Size
- Prism Type: Porro (Prisms ensure the proper horizontal and vertical orientation of the view. There are two main types: roof and Porro. Roof prisms, typically more expensive than the alternative, have a more streamlined design due to their glass elements being in line with one another. Porro prisms, though they contribute to a larger form factor, typically provide a wider field of view than roof prisms.)
- Tripod Mountable: Yes
- Exit Pupil: 7.1 millimeters (The diameter of the beam of light that travels through the lens to the user's eye. Generally, the larger this measurement, the greater the relative brightness and detail of the image.)
- Lens Coating: Multilayer coated (Chemical coatings on a lens reduce reflective light loss and improve light transmission. The different coating levels indicate the number of anti-reflective layers and the lens surfaces to which they're applied, ranging from coated (the most basic) to fully multi-coated (typical of high-end optics).)
- Focus System: Individual (The most common binocular focusing system is center focus, which features a centered wheel or lever (InstaFocus) between the barrels, and usually additional diopter adjustment. Individual focus binoculars allows each eyepiece to be adjusted independently.)
- Eye Relief: 22 millimeters (The maximum distance between the eyepiece lens and user's eye at which the full field of view can be seen.)
- Performance
- Maximum Depth Of Water Resistance: 0 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- Protective Qualities: Fog resistant, Water resistant
- Casing Material: Other
- Dimensions
- Product Height: 2.5 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 8 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Weight: 2.6 pounds (The out of box weight of the item.)
- Other
- UPC: 050234011891
Use these Celestron Oceana 71189-B 7 x 50 magnification-capable binoculars' built-in reticle, calculator dial and illuminated compass to determine the size of a distant object, your distance from it and your orientation for easy navigation.
- Built-in illuminated compass: Enables easy directional navigation.
- Built-in reticle and calculator dial: Let you quickly determine the size of a distant object and your distance from it.
- Waterproof and fog-proof design: For use in most weather conditions. Rubber-covered aluminum body provides rugged durability and a firm grip.
- 7x magnification and 50mm-diameter lenses: To bring your subject close with a clear view.
- 394' at 1000 yards field of view: Lets you examine a large area.
- Individual focus capability: For precision viewing.
- Multicoated optics: Along with BaK-4 prisms allow optimum light transmission to enhance object brightness and produce excellent image clarity and contrast.
- Tripod adapter fitting: Lets you connect a tripod (not included) to enhance binocular stability, resulting in improved image quality while you observe objects.
- Soft carrying case: Makes the binoculars easy to take with you on the go.
- Built-in illuminated compass: Enables easy directional navigation.
- Built-in reticle and calculator dial: Let you quickly determine the size of a distant object and your distance from it.
- Waterproof and fog-proof design: For use in most weather conditions. Rubber-covered aluminum body provides rugged durability and a firm grip.
- 7x magnification and 50mm-diameter lenses: To bring your subject close with a clear view.
- 394' at 1000 yards field of view: Lets you examine a large area.
- Individual focus capability: For precision viewing.
- Multicoated optics: Along with BaK-4 prisms allow optimum light transmission to enhance object brightness and produce excellent image clarity and contrast.
- Tripod adapter fitting: Lets you connect a tripod (not included) to enhance binocular stability, resulting in improved image quality while you observe objects.
- Soft carrying case: Makes the binoculars easy to take with you on the go.
Whats Included
- Celestron Oceana 7 x 50 Waterproof Porro Binoculars with Built-In Compass
- Soft carrying case
- Owner's manual
- Celestron Oceana 7 x 50 Waterproof Porro Binoculars with Built-In Compass
- Soft carrying case
- Owner's manual
A: How far you can see with the Oceana 7x50 binocular depends on what you are looking at. You can view objects on the horizon if it is bright and large enough, and you can also use the binocular to view nearby and deep-sky objects such as the moon or even the Andromeda Galaxy which is 2.5 million light years away. Therefore, there really is no limit on how far away you can see. However, if you wish to see objects in detail, it depends on two factors: atmospheric seeing conditions and the curvature of the Earth.
