Oberwerk Mariner 8×40 Binoculars – Review

Oberwerk Mariner 8×40 Binoculars

Are you the sort of star gazer that likes to get off the beaten path to check out the view of the stars from the heart of the great outdoors? If so, you need a set of astronomy binoculars that provides high quality optics without a bulky, heavy housing that will weigh you down. For star gazers like you, small binoculars are the best choice, and among the many models that fall into this category, the Oberwerk Mariner 8×40 Binoculars are a true standout model.

Because of their compact size, the Oberwerk Mariner 8×40 Binoculars lend themselves to a wide variety of uses beyond astronomy. The model is a favorite of birdwatchers and sportsmen because they are so simple to travel with. The compact design also makes these binoculars an excellent choice for sports and concerts.

The Oberwerk Mariner 8×40 Binoculars are truly one of the easiest binoculars to carry that are still capable of providing an impressive view of the night sky. The binoculars are 5.5 inches long by 6.5 inches wide, and they weigh about 37 ounces. While you can find lighter and smaller models on the market, none of the more compact competitors provide the same viewing experience or quality build of these heavy-duty beauties.

An 8.4-degree field of view allows the Oberwerk Mariner 8×40 Binoculars to provide visions of distance celestial bodies over a wide viewing area. The high contrast ratio and the 40-millimeter objective lens make it possible to see the sky in intricate detail even if there is very little to no light available in the environment.

Oberwerk Mariner 8x40 Binoculars - ReviewWith the Oberwerk Mariner 8×40 Binoculars, you don’t have to worry about wet conditions or fog. The binoculars are nitrogen purged to make them resistant to the development of water vapor and have an airtight seal to keep out humidity, condensation and rain. Their waterproof design makes the binoculars suitable for use close to water or even onboard a boat.

Comfortable, turning eyepieces make the Oberwerk Mariner 8×40 Binoculars perfect for all users, even those who need to wear eyeglasses to view the night sky in all of its glory. Because the binoculars are made for travel, they are highly shock resistant and feature a no-slip housing that is easy to keep hold of on the go.

People who have used large astronomy binoculars may need a little time to adjust to the viewing experience with the Oberwerk Mariner 8×40 Binoculars. The binoculars do not allow you to enjoy the full benefits of their 5-millimeter exit pupil due to an internal light baffle. This means that the 40-millimeter objective lens’ working aperture is reduced. Simply put, you need to have these binoculars in the exact right position to get an immersive viewing experience. Still, after a few tries you will instinctively begin to position the binoculars in the ideal location for the best view.


Magnification: 8x
Objective Diameter: 40mm
Weight: 37 ounces
Field of View: 8.4 degrees
Exit Pupil: 5mm
Optical Coating: Fully Multi-Coated
Weather Proof: Waterproof