25×100 ED Ultra


25×100 ED Ultra


In stock.

The new Oberwerk 25x100mm ED Ultra is the largest and highest-image-quality binocular we offer, short of the XL Series binocular telescopes. Like the XL Series, it has FK-61 ED (Extra-low Dispersion) glass objectives, which greatly-minimize chromatic aberration. In fact the view it provides is exactly the same as what you’d see with a BT-100XL-ED with the optional 22mm (25x) eyepieces ($2800). With the Ultra, you can’t change magnification, and it doesn’t have the 45-degree view- but it’s roughly a third of the cost! Of course it has all the features of the other Ultra models, including precision floating-plate prism mounts, fully broadband multi-coated optics (all air-to-glass surfaces, including prisms), rubber-armored all-metal waterproof construction (nitrogen filled), braced and hinged objective tubes, and built-in mount. This binocular has a wide 2.63° FOV (66° AFOV), with excellent sharpness across the entire field. Eye relief is rather tight on this model, so it’s not recommended for those that need to wear glasses while viewing. However, the focus range of the individual focusers can handle the correction for most people that normally wear glasses. Includes objective covers, ocular caps, and our exclusive Heavy-Duty aluminum-frame case!
Note-shown on TR3 Tripod for the XL Series (not included).

Recommended mount-
Oberwerk 5000 tripod/head
Oberwerk TR3 hardwood tripod with carbon-fiber elevator and Oberwerk 5000 head.

Additional information

Weight 25 lbs
Dimensions 26 × 15 × 12 in


Eye Relief

10.0mm (usable)

Exit Pupil


IPD Range


Minimum Focus


Product Weight

10 lbs.

Product Dimensions

L=18", W=10", H=4"


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