Telescope & Binoculars Optics - Zeiss Terra 3x 4-12×50

Magnification: 4-12x| Effective Entry Pupil 4x: 50mm| Effective Entry Pupil 12x: 50mm| Exit Pupil Diameter 4x: 12.4mm| Exit Pupil Diameter 12x: 4.2mm| Twilight Factor 4x: 14.1| Twilight Factor 12x: 24.5| Field of View @ 100 yds 4x: 27ft| Field of view @ 100 yds 12x: 9ft| Objective Viewing Angle 4x: 5.2°| Objective Viewing Angle 12x: 1.7°| Diopter Adjustment Range: ±2.5dpt| Eye Reief: 90mm / 3.55in| Parallax-Free: 100/300 yds RZ8| Adjustment Range: 40MOA (3.48ft)| Adjustment Range – 100 yds: 42in| Adjustment Per Click: .25MOA| Center Tube Diameter: 1in / 25.4mm| Objective Diameter: 50mm| Coating: Zeiss MC| Nitrogen Filled: Yes| Waterproof: 400 MBAR| Operating Temperature: -13°/+122°F; -25°/+50°C