Steiner Tactical T856R 8x56 Binoculars

When the light is almost gone and you still need to identify and range what you are looking at, most binoculars quit. The Tactical T856R is Steiner's answer for that last hour and the dark beyond it: an 8x56 built around Diamond Night Coating and 96%+ light transmission, with an integrated ranging reticle so you can measure a target's size or distance without reaching for another instrument. It is the most specialized glass in the Tactical line, aimed squarely at professional low-light observation.

The oversized 56 mm objectives and 8x magnification give a 7 mm exit pupil that fills the dark-adapted eye, and Steiner's Diamond Night Coating is tuned to push transmission to the edge of what the glass path allows, so the T856R keeps a bright, high-contrast image well into conditions where smaller optics go gray. A 21.2 twilight factor, the highest in the Tactical family, quantifies that low-light reach.

The integrated Steiner Universal Milling Reticle (SUMR) places fine mil graduations in the field of view for estimating target size and distance, a genuine ranging tool rather than a simple aiming mark. As on the T750, Sports-Auto-Focus keeps everything from about 20 yards to the horizon sharp at once: set each eyepiece to your eyes a single time, and there is no focus wheel to turn while you range and observe.

Everything sits in a nitrogen-sealed housing rated for submersion to five meters, deeper than the rest of the line, under NBR Long Life rubber armor built for hard field use. This is heavy glass at just over two and a half pounds, and deliberately so: it is a low-light and ranging instrument first, chosen for optical reach rather than carry weight.

Key Features

• Diamond Night Coating, 96%+ transmission. Steiner's dedicated low-light coating, tuned for observation well after dusk.
• Integrated SUMR ranging reticle. Fine mil graduations to measure target size or distance in the field.
• 7 mm exit pupil, 21.2 twilight factor. The 8x56 format delivers the family's deepest low-light reach.
• Sports-Auto-Focus. Always in focus from about 20 yards to infinity, with no wheel to turn.
• Submersible to 5 m, nitrogen-sealed. Sealed deeper than the rest of the Tactical line and fogproof in any weather.

Ideal For

• Professional low-light observation in military, law-enforcement, and security roles where identifying detail after dark is the mission.
• Observers who need to range a target's size or distance from the same glass they observe with, without switching tools.
• Fixed-position and vehicle use where the 56 mm objective's weight buys reach a lighter binocular cannot. For the same always-in-focus low-light formula without the reticle, compare the T750 7x50.