MARINE BINOCULARS
When at sea, use of marine binoculars is necessary for enhancing the safety of the vessel. Though there is no specific regulation in SOLAS on the number of binoculars present on vessels, it is important that all vessels are equipment with best marine binoculars.
As a mariner, it is important to know about the binocular (and its features) you are using at sea to ensure you are having the correct one and in case there is a need of upgrade.