The Barska 7-21x40 Colorado Reverse Porro Zoom Binocular is a compact and cost-effective handheld optic useful for a wide range of outdoor activities. The variable 7-21x magnification is ideal for intermediate to long-range bird watching, hunting and sightseeing. A reverse Porro prism design and fully coated optics transmit detail-rich resolution with edge to edge clarity and excellent low light performance. The rubber armored housing helps protect your optics from moisture and light shock. For the nature enthusiast on a tight budget, the ergonomic design and complementing features of Colorado series binoculars deliver a comfortable user-experience and high quality images.
|Angle of View||7x: 5.2deg.
|Objective Lens Diameter||40mm / 1.57"|
|Field-of-View||7x: 270' at 1000 yd / 89.64 m at 1000 m|
|Minimum Focus Distance||32.81' / 10m|
|Exit Pupil Diameter||7x: 5.5mm / 0.21"|
|Eye Relief||7x: 14mm / 0.55"
21x: 12mm / 0.47"