20x80 CB LW without the built-in central mount weighs only about 1.8 kgs.  It's for those who just feel like lying flat on the lawn, watching the night sky now and then, need a binoculars to pick out a star - here a  handholdable and powerful 20x80 comes in handy. Its high optical quality (the same as 15x70 CB) will make your relaxing-style night viewing enjoyable.
20x80 triplet has triplet objective  (three-element objective) to improve the sharpness and color correction.  It's heavier and meant to be mounted and so it has a built-in central mount.
Just as 15x70, our 20x80 LW and 20x80 triplet binoculars represent the great value: high quality and unbeatable price. 
20x80 LW and 20x80 triplet have ak-4 prism, full broadband multi-coating, rubberized metal bodies, all-glass lenses, right ocular diopter adjustment, improved "slow-focus", brass 1/4-20 tripod adapter threading, case, caps, and strap.
| 
 Model 
 | 
 20x80 CB LW 
 | 
 20x80 CB Triplet 
 | 
| 
 Objective size 
 | 
 80 mm 
 | 
 80 mm 
 | 
| 
 Magnification 
 | 
 20x 
 | 
 20x 
 | 
| 
 Focus system 
 | 
 Center 
 | 
 Center 
 | 
| 
 Prism 
 | 
 Porro / BAK4 
 | 
 Porro / BAK4 
 | 
| 
 Coating 
 | 
 Fully Broadband Multi-coated 
 | 
 Fully Broadband Multi-coated 
 | 
| 
 Field of view at 1000m 
 | 
 56 m 
 | 
 56 m 
 | 
| 
 Angle of View 
 | 
 3.2º 
 | 
 3.2º 
 | 
| 
 Exit Pupil distance 
 | 
 17 mm 
 | 
 17 mm 
 | 
| 
 Exit pupil diameter 
 | 
 4 mm 
 | 
 4 mm 
 | 
| 
 Inter-pupil distance 
 | 
 56-74 mm 
 | 
 56-74 mm 
 | 
| 
 Minimum focus distance 
 | 
 20 m 
 | 
 20 m 
 | 
| 
 Waterproof 
 | 
 No 
 | 
 No 
 | 
| 
 Net weight 
 | 
 1845 g 
 | 
 2265 g 
 |