Here's how to focus: </br>1: Close your right eye-focus with the left and rotate the central knob until the image is clear. </br>2: Close your left eye-rotate the right eyepiece knob until the image is sharp and clear. </br>3: Bend the binoculars until you can get a single circular view. </br></br>Specifications:</br>Objective lens diameter: 42mm</br>Eyepiece diameter: 18mm</br>Near focal distance:5m</br>Exit pupil distance: 10mm</br>Objective lens coating: FMC broadband</br> Focus system: Center & Right eye</br> Angle of field: 5.5 degrees </br>Viewing field: 305ft/1000yds</br>Weight of binoculars:1.09lb/498g</br>Waterproof grade: IP55 Life waterproof</br></br> Package:</br> 1 x Binoculars<br>1 x Cleaning Cloth</br> 1 x Carrying Bag (with strap)</br>1 x User Manual</br>1 x Neck strap</br>1 x Eyecup</br>1 x Objective Lens Covers</br>