Oberwerk Product Features

Like most binoculars on the market today, Oberwerk binoculars come from China. Unlike most other brands, Oberwerk binoculars are made in a small assembly plant, which exclusively makes binoculars for Oberwerk. That assembly plant is owned by business partners that we’ve been working closely with since 1999.

Under this close partnership, we have full control over design and quality. As we continually innovate, our products have become increasingly-unique, which means you won’t find any current Oberwerk binoculars being sold under another brand name.

As the world’s leading supplier of high-power binocular telescopes, we’re obsessed with achieving perfect collimation (alignment). Every Oberwerk binocular is individually tested and perfectly-aligned to the limits of resolution based on that model’s magnification.

After passing our testing, the binocular is laser-engraved with a serial number, goes back in its case, then its box, along with a hand-written Quality Assurance Checklist- which also serves as the 5-year limited warranty card. It’s then carefully packed for shipping in a larger box, and is guaranteed to arrive to the customer in perfect alignment.

Quality multi-coatings maximize the amount of light that passes through a lens. An uncoated lens surface passes only 95% of the light that hits it- 5% is lost due to reflection and scattering. A single-coated lens surface is more efficient, passing 98-99%, with a 1-2% loss. A multi-coated lens surface is the most efficient, passing about 99.5%, with just a 0.5% loss. Binoculars have many air-to-glass surfaces (between 14 and 22 for each side), so the number of uncoated, single-coated, and multi-coated surfaces can make a huge difference in overall efficiency.

All OBERWERK® binoculars utilize the highest-quality broadband multi-coating on all air-to-glass surfaces. Note the reflections of a circular fluorescent bulb in the binocular shown at the right. Some competitors multi-coat only the interior surface of the objective lenses, single-coat the other lenses, and often have uncoated prisms. Their binoculars will typically show one green reflection, with multiple light blue (single-coated) and white (uncoated) reflections.

All OBERWERK® binoculars feature highest-quality BAK4 prisms, which give the best performance across the entire field of view. Competitors often use less-expensive BK-7 prisms, which darkens the image near the edges of the field of view.

OBERWERK® center-focus binoculars feature “slow” focusers that require more than one turn of the focus wheel to move from one end of the focus range to the other. Other brands utilize “fast” focusers that move from one end to the other in less than 1/2 turn of the focus wheel. Unlike competitor’s “fast” focusers, OBERWERK® “slow” focusers have a more precise adjustment, and will not drift from pressure on the oculars.

OBERWERK® binocular eyepieces are designed to minimize any recess between the top of the eyepiece and the outermost lens, in order to achieve greater eye relief than similar models from other brands. This means those that must (or simple prefer) to wear eyeglasses while viewing should be able to see the entire FOV

OBERWERK® binoculars are covered by a 5-year limited warranty (from date of purchase) for problems due to manufacturing defects.

Only OBERWERK offers a Lifetime Binocular Exchange Program. Customers may exchange an OBERWERK® binocular, regardless of age or condition, for a new binocular of the same model, at 25% off the regular price, or apply that savings to a more expensive model.