Binoculars for the boat also belong on the boat. Nobody willingly dragged a monster weighing almost two kilograms ashore just to marvel at the sights. Especially not when you start your journey to the charter boat by plane, where every gram counts when it comes to luggage.
If you still don't want to do without high-quality optics, you can opt for the slimmer and lighter 10 x 42 glass, which reliably brings distant things closer both on board and on shore excursions. In the past, these optics - mostly smiled at as ranger binoculars - were simply not seaworthy enough. In the absence of nitrogen filling, the lenses and prisms quickly fogged up, and the coating applied to the glass surfaces was primarily tailored to the color spectrum on land. In plain language: While the maritime colors were and are favored for sea glasses, green and earth tones were in the foreground for products for land use. In the meantime, all manufacturers have written the greatest possible color fidelity in the specifications.
In terms of fogging, waterproofness and robustness, the slim binoculars, which mostly work according to the so-called roof prism principle, have also caught up. The test of seven branded glasses clarifies whether they have grown sea legs as a result and which manufacturer offers the best product. The price ranges from just under 270 euros for the Nikon Monarch to 900 euros for the Zeiss Conquest.