BASIC MARINE BINOCULARS - MODEL ATLANTIC III
The Atlantic III Binoculars have auto focus lens and has the ideal balance between magnification and light intensity. The recommended binoculars for marine use are just 7X50, since the ratio of magnification to light absorption is optimal.
If you choose a pair of binoculars that enlarge, it's hard to keep the view enough to look sharp. If you choose a smaller lens diameter, you get less light drop.
In addition, the Atlantic III binoculars have BK-7 prisms, and blue coated lenses that enhance sharpness and contrast.
The viewing angle indicates the width of the image visible at a distance of 1000 metres. The viewing angle of 6.6 gives a width of 115m at 1000 metres distance.
These binoculars come with bag and strap