The most important designs
Overview: there are opera glasses, marine binoculars, roof prism or Porro prism designs. Is that everything? Is there anything else?
It’s easy to use a pair of binoculars, but producing good binoculars is not so simple. The design, performance characteristics and quality must be aligned with one another, and be suitable for the intended use. In addition to optics, mechanics also play a role. What's important and what you need to know.
