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Swarovski Optik BTX eyepiece module with dual eyepieces and forehead rest

Swarovski Optik

Swarovski Optik BTX 30x/35x Eyepiece Module Dual Eye Viewing Mount Cap

SKU CH-QDAK-KPTRA

Dual-eye eyepiece module adds 30x to 35x magnification to ATX/STX spotting scopes with 114 ft field of view at 1000 yards and 21 mm eye relief

  • 30x to 35x magnification for detailed long-distance observation
  • Dual-eye viewing reduces strain during extended sessions
  • 114 ft field of view at 1000 yards captures wide scenes
  • 21 mm eye relief suits spectacle and non-spectacle wearers
  • Compatible with all ATX/STX objective modules for flexible use

Magnification range and compatibility

The BTX eyepiece module delivers 30x to 35x magnification when paired with Swarovski ATX or STX spotting scopes. It replaces the standard single eyepiece to provide a dual-eye viewing experience. The module fits every objective module in the ATX/STX family, extending the system's versatility for detailed observation. It is designed for users who want binocular-style comfort on a modular spotting scope platform.

Optical limits of the system

The module provides a field of view up to 114 feet at 1000 yards when used with compatible objective modules. Eye relief is fixed at 21 mm, accommodating viewers with or without spectacles. Magnification is bounded between 30x and 35x, so the system cannot reach lower or higher powers without changing the objective module. These optical parameters define the practical viewing envelope for the combined setup.

Mounting and module requirements

Buyers must already own or purchase a Swarovski ATX or STX objective module, because the BTX eyepiece cannot function alone. The bayonet mount attaches directly to the objective module's rear interface; no additional adapter is required. Verify that the objective module is from the ATX/STX family, as earlier or different series are not compatible. The unit is sold new and includes the protective mount cap for storage.

Highlights

  • 30x to 35x magnification for detailed long-distance observation
  • Dual-eye viewing reduces strain during extended sessions
  • 114 ft field of view at 1000 yards captures wide scenes
  • 21 mm eye relief suits spectacle and non-spectacle wearers
  • Compatible with all ATX/STX objective modules for flexible use

Specifications

No published specifications for this item yet.

Questions about this item

Which magnification range suits my ATX/STX scope best, 30x or 35x?

The module delivers a continuous 30x to 35x range when paired with any ATX/STX objective module, so you can zoom through the full span rather than choosing a single fixed power.

What does the 114-foot field of view at 1000 yards look like in practice?

At 1000 yards you see a 114-foot wide circle, giving an immersive, binocular-like panorama that captures more surroundings than a typical single-eye spotting scope eyepiece.

How does the dual-eye mount cap connect to my ATX/STX scope body?

The BTX module attaches directly to every objective module in the ATX/STX family, replacing the standard single eyepiece with a dual-eye viewing head that uses the scope's existing bayonet mount.

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