These binoculars have poor quality optics, not very clear and bright. The claimed 20x magnification may not be accurate. I have 10x50 and 16x50 and for comparison this is the same as 10x50 but with bad optics. I think the description of Strength 20 is a typo. In addition, the rubber case has a strong unpleasant odor. The binoculars are very light, which is an advantage if other qualities do not interfere. They have good lens caps and storage system and a good case and carrying strap.
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