The BTX combines the visual power of both eyes with a revolutionary viewing experience. Crucial subtleties can be seen with the crystal clear optics, with every detail now fully on show. A forehead rest and angled view guarantee comfortable viewing for hours on end.

Magnification

• 30x
• 35x

Exit Pupil Diameter

• 2.2 mm
• 2.9 mm
• 2.7 mm
• 3.1 mm

Field of View (m) at 1000m / ft at 1000yds

• 38 m/1000m
• 37 m/1000m
• 32 m/1000m

Field of View Apparent

• 60°

Diopter Correction at ∞

• >5dpt

Effective Objective Lens Diameter

• 65 mm
• 85 mm
• 95 mm
• 115 mm

Eye Relief

• 21mm

Field of View (degrees)

• 2.1°
• 1.8°

Shortest Focusing Distance

• 2.2 m
• 3.8 m
• 5 m