Binocular Viewer Specifications

The Tower Optical Binocular Viewers are meticulously crafted to exact specifications to ensure that every viewer that leaves our facility will provide years of reliable service regardless of the environment.

Split Rock Lighthouse
Two Harbors, MN

Technical Specifications


  • Focus System: Manual
  • Magnification: 10x42
  • Field of View: 318 feet @ 1000 yards

Weatherproof Components

  • Housing: Chrome plated bronze casting
  • Yoke, Pedestal, Base, Step-ups: Cast iron
  • Internal: Bronze and stainless steel

Rotational Angles

  • 360°
  • 45° up
  • 22° down


  • Total Weight: 300lbs / 136kg
  • Overall Height: 63in / 160cm

Recording Meter to track usage


Customizable Viewing Guide to highlight points of interest



  • Housing: Chrome-plated
  • Yoke, Pedestal, Base: Black is standard, other colors are also available


Additional Specifications for Coin-Operated Viewers

Coin Mechanism

  • Manually operated, mechanical — no batteries or power source required

Coin Activation

  • 25¢ or 50¢ (quarters only)

Coin Storage Capacity

  • Approximately 2,000 quarters

Viewing Time

  • ±1.5 or ±2.5 minutes

If you would like more information about our binocular viewers, please call us at 203.866.4535.