The Zero Tube is an advanced monocular—engineered for backcountry missions, fast movement, and demanding conditions. Featuring ED glass, dielectric-coated BaK4 prisms, and fully multi-coated lenses, it delivers high resolution, contrast, and color accuracy in a form factor that all but disappears in a kit. This is precision optics for people who move light and look far.

Waterproof, fogproof, and built with a rugged, no-slip housing, the Zero Tube performs in the alpine, on the water, and deep in the field. A built-in carry clip keeps it within reach, while its ultra-compact design makes it easy to forget—until needed. When clarity, durability, and packability matter most, the Zero Tube is the one to bring.

Extra-low dispersion (ED) glass sharpens resolution, improves contrast, and delivers more accurate color—so fine details stay crisp when you’re glassing terrain, wildlife, or distant lines
Premium BaK4 prisms with dielectric and phase coatings maximize light transmission and clarity, especially in low-light conditions when seeing clearly matters most
Rugged, impact-absorbing housing feels solid and natural in hand, with added grip to protect the optics when they inevitably take a hit along the way
Ultra-compact form factor at just 110 × 40 mm makes the Zero Tube a highly packable high-performance monocular in its class—easy to carry, hard to leave behind
Waterproof (IPX7) means it is built to handle storms, splashes, and full submersion up to 1 meter for 30 minutes
Fogproof construction with nitrogen-filled chambers prevents internal fogging as temperatures and conditions change
Twist-up eyecup adjusts easily for a comfortable fit, whether you’re wearing glasses or not
Integrated carry clip attaches securely to packs or belts for fast, one-handed access when the moment appears
No-Matter-What™ Lifetime Warranty backs every unit

In the box:

Monocular
Rope wrist loop
Microfiber pouch
Lens cloth

Technical specs:

Power: 10x
Objective lens: 25 mm
Exit pupil diameter: 2.5 mm
Field of view: 114 m @ 1000 m / 341 ft @ 1000 yds (6.5º)
Close focus (minimum focal length): 1.5 m / 4.9 ft
Number of lenses: 10 pieces / 7 groups
Lens coating type: fully multi-coated, ED glass
Prism type: roof / phase coated BaK4
Waterproof rating: IPX7 (1 m / 30 min)
Fogproofing: yes, nitrogen filled, o-ring sealed
Eyecup system: multi stop twist up
Eye relief: 16.3 mm / 0.64 in
Relative brightness: 6.25
Compatible accessories: woven wrist strap, photo rig
Resolution: ≤8.6"

New Products