Main Features:<br />Boshile 10 - 100 amplification factor telescopic monocular， equipped with Roof system BAK4 prism， nice experience<br />32mm objective lens diameter provides you wide angle<br />Objective lens coated with FMC green film and eyepiece coated with blue film， 95 percent light transmittance， imaging clearly<br />Close focus distance is 0.5m， maximum viewing is up to 3000m<br />Hanging strap will protect the monocular from falling down<br />Great for bird watching， traveling， climbing， beach， etc.<br />Stretched size: 19.2 x 3.2 x 3.2cm<br />Folding size: 14.0 x 3.2 x 3.2cm<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />    Specifications<br />General<br />  Brand: Boshile                                                  <br />                        Type: Monoculars                                                  <br />                        For: Theater， Boating/Yachting， Travel， Outdoor activities， Bird watching， Horse racing， Beach                                                  <br />                        Color: Black                                                 <br />Specification<br />  Prism System and Material: Roof BAK4                                                  <br />                        Body Coated with Rubber: Yes                                                  <br />                        Amplification Factor: 10X - 100X                                                  <br />                        Objective Lens (mm) : 32mm                                                  <br />                        Focusing System: Center Focus                                                  <br />                        Field of view: 44.5m - 61.9m / 1000m                                                  <br />                        Field Angle(degree): 2.5 to 3.5 degree                                                  <br />                        Close Focus Distance: 0.5m                                                  <br />                        Exit pupil distance: 12mm                                                  <br />                        Coating Film: Objective lens coated with FMC green film， Eyepiece with blue film                                                  <br />                        Features: Tripod Interface， Anti-slip                                                 <br />Basic Information<br />  Product weight   : 0.118 kg                                                  <br />                        Package weight   : 0.170 kg                                                  <br />                        Product size (L x W x H)   : 14.0 x 3.2 x 3.2 cm / 5.50 x 1.26 x 1.26 inches                                                  <br />                        Package size (L x W x H)  : 15.0 x 4.5 x 4.5 cm / 5.90 x 1.77 x 1.77 inches                                                  <br />                        Package Contents: 1 x Boshile Monocular， 1 x Storage Bag， 1 x Lens Cloth， 1 x Hanging Rope                                                 <br /><br /><br /><br />                                                <br />